LRAID cmds: Difference between revisions

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$ ssh lraid5
=== MeLE A2000 ===
Last login: Sun Jul  3 09:14:04 2011 from totoro
Oracle Corporation      SunOS 5.11      snv_151a        November 2010
lundman@solaris:~$  sudo bash
Password:
root@solaris:/home/lundman# # uname -a
SunOS solaris 5.11 snv_151a i86pc i386 i86pc Solaris


Drives attached to the system:
=== Mele file storage ===


  # cfgadm -al
  http://www.lundman.net/ftp/mele/
Ap_Id                          Type        Receptacle  Occupant    Condition
sata1/0::dsk/c10t0d0          disk        connected    configured  ok
sata1/1::dsk/c10t1d0          disk        connected    configured  ok
sata1/2::dsk/c10t2d0          disk        connected    configured  ok
sata1/3::dsk/c10t3d0          disk        connected    configured  ok
sata1/4::dsk/c10t4d0          disk        connected    configured  ok
sata1/5                        sata-port    empty        unconfigured ok


(Ok, there should be a disk in sata1/5, but the kids probably popped it out)


=== v1.3BETA firmware ===


=== pools ===
Mele_HTPC_0929_BETA_V1.3.rar
Mele_HTPC_0929_BETA_V1.3.ddimg.bz2


There are two parts to ZFS. The "pool" of storage, and "file-systems". All pool commands are done with "zpool" and all filesystem commands are done with "zfs".
Exactly the same issues as v1.2. I can not see anything new, nobody should run this.


However, TMerle has taken this image and made it english, removed the annoying apps, and added Google Store. Huzzah!


List your pools, you will initially only have the boot pool:
If you want to replace the kernel, with the NIC patched kernel, do this:


  # zpool list
  # wget http://lundman.net/ftp/mele/mele.v1.3.nandc-new
NAME    SIZE  ALLOC  FREE    CAP  DEDUP  HEALTH  ALTROOT
  # dd if=/dev/nandc of=original_nandc.bin bs=65536          # Use /dev/block/nandc if on Android
rpool  29.8G  5.46G  24.3G    18%  1.00x  ONLINE  -
  # dd if=mele.v1.3.nandc-new of=/dev/nandc bs=65536
  mypool 4.53T 1.39T  3.14T    30%  1.00x  DEGRADED  -
 
Default boot is called "rpool" in Solaris, you can change the name if you want.
 
 
Check out the status of your zpools:
 
# zpool status
  pool: rpool
state: ONLINE
scan: none requested
config:
   
   
        NAME        STATE    READ WRITE CKSUM
Now, when I boot, the wemac NIC doesn't work any more (link stays down). But if I replace the script.bin it works again. I do not know which part of script.bin needs to be fixed. Someone with time could look into this. There are only about 20 lines when you diff them, but none in emac area.
        rpool        ONLINE      0    0    0
          c10t0d0s0  ONLINE      0    0    0
errors: No known data errors
  pool: mypool
state: DEGRADED
status: One or more devices has been removed by the administrator.
        Sufficient replicas exist for the pool to continue functioning in a
        degraded state.
action: Online the device using 'zpool online' or replace the device with
        'zpool replace'.
scan: resilvered 27.5G in 0h21m with 0 errors on Thu Jun 30 16:19:20 2011
config:
        NAME                        STATE    READ WRITE CKSUM
        mypool                      DEGRADED    0    0    0
          raidz1-0                  DEGRADED    0    0    0
            c10t5d0                REMOVED      0    0    0
            c10t4d0                ONLINE      0    0    0
            c10t3d0                ONLINE      0    0    0
            c10t2d0                ONLINE      0    0    0
            c10t1d0                ONLINE      0    0    0
        logs
          /dev/zvol/dsk/rpool/slog  ONLINE      0    0    0
errors: No known data errors
 
 
As you can see, "rpool" is the boot pool (root pool), on disk "c10t0d0". (controller 10, target 0, device 0, slice 0). Slice is "partition" in Solaris world. Device is no longer used, as it is a legacy thing from scsi days. "rpool" is a single disk pool.
 
My main data pool, "mypool" is missing a disk, but otherwise fine lookin'. Finally the "slog" of "mypool" (transaction logs in ZFS) is stored on SSD, this is for speed. This is a "raidz1" (raid 5) setup. I can lose one disk without data loss. (20% used on parity). Use "raidz2" if you want to be able to lose 2 HDDs without loss. (40% used on parity), and so on. You can also "mirror" (raid1).
 


=== File systems ===
# wget http://lundman.net/ftp/mele/mele-1.3-script-fixed.bin
# mount -t vfat /dev/nanda /mnt
# cp /mnt/script.bin /mnt/script-original.bin
# cp mele-1.3-script-fixed.bin /mnt/script/bin
# umount /mnt


ZFS has two kinds of filesystems. Regular ZFS file system, and a "Virtual-Volume". The latter creates a virtual block device (fake disk) which you can then use as a regular disk, ie, format it "ext3" if you really want to, mount it etc. In this case, we create a Volume for "swap", and for "slog". The size of both ZFS-fs, and Volumes, can be changed on the fly.
For those of you who also wishes to make advantage of the ZFS in the kernel, you additionally need to get:


# wget http://lundman.net/ftp/mele/zpool_builtin-1.3
# wget http://lundman.net/ftp/mele/zfs_builtin-1.3
# mount -o remount,rw /system
# busybox cp zpool_builtin-1.3 /system/bin/zpool
# busybox cp zfs_builtin-1.3 /system/bin/zfs
# touch /etc/mtab
# zpool import -d /dev/block yourpoolname


Listing your filesystems:
Personally, I also recommend:
 
# zfs list
NAME                        USED  AVAIL  REFER  MOUNTPOINT
rpool                      8.04G  21.2G    93K  /rpool
rpool/ROOT                2.84G  21.2G    31K  legacy
rpool/ROOT/realtek        2.84G  21.2G  2.71G  /
rpool/ROOT/solaris        2.04M  21.2G  2.52G  /
rpool/dump                1019M  21.2G  1019M  -
rpool/export                141M  21.2G    32K  /export
rpool/export/home          141M  21.2G    32K  /export/home
rpool/export/home/lundman  141M  21.2G  141M  /export/home/lundman
rpool/slog                2.06G  21.9G  1.36G  -
rpool/swap                    2G  23.1G  123M  -
mypool                    1.11T  2.45T  55.9K  /mypool
mypool/backup              232G  2.45T  232G  /backup
mypool/data                1.42G  2.45T  1.42G  /data
mypool/secure              906G  2.45T  906G  /media
mypool/swap                  2G  2.45T  25.6K  -
mypool/test                54.3K  2.45T  54.3K  /mypool/test


# cd /system/media/
# mv bootanimation.zip bootanimation.zip-orig


Note that default Solaris creates lots of little filesystems, one for each boot (realtek & solaris), one for "dump", "swap", "export" "export/home" and "export/home/lundman". But then, filesystems are really cheap in ZFS, so, why not. Gives you lots of control. Traditionally filesystems were quite monolithic, where as in ZFS they are closer to "mkdir".
=== v1.2 firmware ===


Checking the attributes of the "rpool":
Mele_HTPC_120907_Ver1.2.rar


# zpool get all rpool
This does not include Google Market/Play Store. Has a strange launch screen that appears not trivial to replace. It is loaded with chinese apps and ad/malware.
NAME  PROPERTY      VALUE              SOURCE
I would not recommend anyone to run this.
rpool  size          29.8G              -
rpool  capacity      18%                -
rpool  altroot        -                  default
rpool  health        ONLINE              -
rpool  guid          15126656221277650189  default
rpool  version        31                  default
rpool  bootfs        rpool/ROOT/realtek  local
rpool  delegation    on                  default
rpool  autoreplace    off                default
rpool  cachefile      -                  default
rpool  failmode      wait                default
rpool  listsnapshots  off                default
rpool  autoexpand    off                default
rpool  dedupditto    0                  default
rpool  dedupratio    1.00x              -
rpool  free          24.3G              -
rpool  allocated      5.46G              -
rpool  readonly      off                -


You won't change the pool attributes that often, but in this case, "failmode" defines what the system should do if the pool as a failure. In this case "wait" (ie, hang until it is fixed.) Which is not so useful. It is often better for it to "continue" in failure mode, so we can try to fix it.
=== Status ===


# zpool set failmode=continue rpool
Current status with the Mele A2000, Allwinner A10.


autoreplace controls if it should automatically replace dead HDD with new HDDs, if it detects you have replaced the hardware. Why not? Unless you want to manually try the commands of course.
Official release: Android 4 ICS, 4.0.8.
Kernel: 3.0.31+


autoexpand controls if it should automatically make the pool larger, when all HDDs in the pool have been replaced with larger disks. You probably want this on too.
'''Positive:'''
* Video playback 1080p
* MKV playback
* TS playback
* YouTube
* Android market and Games (Angry Birds etc)


But we are actually looking at "rpool", the SSD, so the last two options do not really make sense. You want to set the for your data pool though.
'''Negative:'''
* <s>Network Streaming</s> Fixed. NIC has been patched to allow smooth 1080p steaming
* Audio. The settings; '''CODEC''' no sound, but probably on RCA. '''HDMI''' choppy sound, unusable. If made to work, only '''stereo''' on HDMI. '''SPDIF''' not working, does not turn on. (No red light)
* Bitstreaming; Unconfirmed since SPDIF is not functional. But can the hardware bitstream TrueHD, and DTS-MA ?
* 10bit video does not play (not supported by hardware, CPU too slow for software)
* AVI/XviD does not play (not supported by hardware, CPU too slow for software)


Likewise, ZFS filesystems (and Volumes) also have attributes, these are more fun to play with.
Currently, it is no good for mediaplayer. But if all you want is a toy to play youtube, some android games, and only stereo sound, it is definitely capable.


# zfs get all rpool
rpool  type                            filesystem                      -
rpool  creation                        Fri Dec 24  2:38 2010          -
rpool  used                            8.04G                          -
rpool  available                      21.2G                          -
rpool  referenced                      93K                            -
rpool  compressratio                  1.00x                          -
rpool  mounted                        yes                            -
rpool  quota                          none                            default
rpool  reservation                    none                            default
rpool  recordsize                      128K                            default
rpool  mountpoint                      /rpool                          default
rpool  sharenfs                        off                            default
rpool  checksum                        on                              default
rpool  compression                    off                            default
rpool  atime                          on                              default
rpool  nbmand                          off                            default
rpool  sharesmb                        off                            default
rpool  dedup                          off                            default
rpool  encryption                      off                            -
(this list is considerably larger, I just picked out some of the juicier options).


Most are self-explanatory. But note that "quota" here means the "file-system size". If not set (normal) you can create files in there until the pool is full. If set (say 100G) you can only go to 100G of data.
=== Android 4 ICS wired NIC patch ===
"reservation" refers to how much space the fs should reserve in advance. If you set quota to 100G, that directory (user) can fill 100G, but it allocates no space. So if the pool runs out, the user can not actually reach 100G. If you want it to pre-allocate the promised 100G, you set reservation. You probably don't want to. But do note we set it for "swap" since you don't want swap to NOT have the space promised.


"sharenfs" and "sharesmb" controls if it should exported as NFS, or samba. atime is good to disable (speed). "compression" is often good to have on (lessens the disk read/write and expense of CPU - alas, does nothing for media like movies).
I have been working on trying to improve the '''wemac''' NIC driver in the Mele A2000 Allwinner A10 hardware, which will stutter when playing 720p/1080p over network. The current patch makes it much better, such that I think it is usable now. There is a '''mynewerimage.img''' image in the storage area, that you can '''dd''' to the '''nandc''' device. I will work on submitting the patch upstream.


Checking swap:
For example, if you boot miniand image:


  # zfs get all rpool/swap
  # modprobe nand    # nand.ko on my storage area too
  rpool/swap  compression                    off
# wget http://lundman.net/ftp/mele/mynewerimage.img
  rpool/swap volsize                        2G
  # dd if=/dev/nandc of=mele_nandc_backup.bin bs=65536
  rpool/swap  refreservation                  2G
  # dd if=mynewerimage.img of=/dev/nandc bs=65536
  # sync
  # reboot -f


So, swap set to use 2G of space, pre-allocated. Note your ZFS Volumes can be compressed. So if you put a "ext3" filesystem on it, ZFS will compress the blocks under it, to take up less space. Very sexy.
And take out the SD card to boot Android again. If you do this using Android, the device node is /dev/block/nandc


=== Android 4 ICS official Mele image ===


The official Mele Android ICS image is out, called '''Mele_HTPC_Android_4.0_V1.rar''' which you need to use PhoenixCard to "burn". Once installed, you can use '''audiopatch1.3.apk''' to enable some sound features. Otherwise it seems quite similar to A10 firmware.


For those not using Windows, I also made a '''dd''' image: '''Mele_HTPC_Android_4.0_V1.ddimg.bin.bz2''' [http://lundman.net/ftp/mele/Mele_HTPC_Android_4.0_V1.ddimg.bin.bz2] Just dd the whole thing to your raw device.


=== Android 4 IceCreamSandwich ===


'''Update: the non-beta release of ICS4 came out (for the A10, not Mele's release), which has settings/display, and lets you chose resolution '''


You use "format" command in Solaris to play with partitions. This is legacy crap you do no longer need to bother with (Since the boot is already done).  Looks like this:
For Unix and clones:
wget http://www.lundman.net/ftp/mele/homlet_4.0_v1.0_20120609_dd.img.lzma
  7z x homlet_4.0_v1.0_20120609_dd.img.lzma
sudo dd if=homlet_4.0_v1.0_20120609_dd.img of=/dev/sdX bs=1M
sync


# format
Where you need to replace X in /dev/sdX by the correct letter for your SD card reader.
Searching for disks...done
Now insert the SD card in your Mele, and wait until the LED stops blinking, remove the SD card and restart the device. Et voila!
(Read more: [http://www.cnx-software.com/2012/06/18/mele-a1000a2000-android-4-0-image-released/#ixzz1ylfoeKQc]) See I kept the paste URL cos I'm nice! :)
AVAILABLE DISK SELECTIONS:
      0. c10t0d0 <ATA    -OCZ-AGILITY    -1.4  cyl 3889 alt 2 hd 255 sec 63>
          /pci@0,0/pci1043,8496@11/disk@0,0
      1. c10t1d0 <ATA-SAMSUNG HD103SI-1113-931.51GB>
          /pci@0,0/pci1043,8496@11/disk@1,0
      2. c10t2d0 <ATA-SAMSUNG HD103SI-1118-931.51GB>
          /pci@0,0/pci1043,8496@11/disk@2,0
      3. c10t3d0 <ATA-SAMSUNG HD103SI-1118-931.51GB>
          /pci@0,0/pci1043,8496@11/disk@3,0
      4. c10t4d0 <ATA-SAMSUNG HD103SI-1118-931.51GB>
          /pci@0,0/pci1043,8496@11/disk@4,0
Specify disk (enter its number):




Create a pool from disks:


# zpool create mypool raidz c10t1d0 c10t2d0 c10t3d0 c10t4d0 c10t5d0
There is also an audiopatch for the ICS4 image to get sound to work. Copy over '''audiopatch1.2.apk''' (adb, or physical media) to your ICS4, install and run.


You can name it anything you want, don't need to use 'mypool'
Not convinced it makes any difference for me. Audio appears not to work still.
# zpool status mypool


zpool don't have to be actual disks either, you can make it on fake files:
It appears the contents on audiopatch1.2 is pretty much just libswa.so. Not entirely sure what it thinks to do with it, but if I do a '''find''' from root, there is no such library, before and after running patch.


# mkfile 1G /var/tmp/fakedisk1
I copied the file by hand:
# zpool create playpool /var/tmp/fakedisk1


busybox cp /data/data/com.android.audiopatch/files/libswa.so /system/lib/


When you do it "for realz" you want slog on SSD. So create a volume for slog, usually the same size as memory.
and I get sound playing videos with some audio formats now. Like, TV MKV releases.


# zfs create -V 2G rpool/slog
=== Mele A2000 ===
(-V creates a Volume instead of fs, creating volumes creates a dev node at /dev/zvol/dsk/$poolname/$volumename)


# zfs set refreservation=2G rpool/slog
I purchased a MeLE A2000 from Tom over at [http://www.aliexpress.com/product-fm/546571245-Mele-A2000-TV-box-Allwinner-A10-hackable-device-wholesalers.html aliexpress], and been playing around with it as well. First I wanted to install ICS4, to do that I downloaded the '''android_4.0.img''' file from the 'net. Alas, there is a large volume of confusing information on what to do with this.
(pre-allocate the disk space, so slog is guaranteed 2G)


  # zfs add mypool log /dev/zvol/dsk/rpool/slog
  [http://www.lundman.net/ftp/mele/ http://www.lundman.net/ftp/mele/]
(Attach the Volume slog from pool rpool, to pool zpool)
  [https://www.wuala.com/zercosz/Mele%20A2000/Firmware/?key=ThisIsFC2012 https://www.wuala.com/zercosz/Mele%20A2000/Firmware/?key=ThisIsFC2012]


For the MeLE A2000, I also downloaded '''PhoenixCardV303(win7)''' and installed that in my VirtualBox Win7 system, forwarded the OSX USB drive and told it to install '''android_4.0.img'''.


[https://www.wuala.com/zercosz/Mele%20A2000/Utilidades%20Mele/?key=ThisIsFC2012 https://www.wuala.com/zercosz/Mele%20A2000/Utilidades%20Mele/?key=ThisIsFC2012]
[http://www.lundman.net/ftp/mele/ http://www.lundman.net/ftp/mele/]


Create a file-system:
After that, I inserted the SD card into Mele, and rebooted.


# zfs create mypool/roger
The power LED will blink RED + BLUE for a while, then power LED will turn off.
mypool/roger            2.5T  55K  2.5T  1% /mypool/roger


Don't like where it is mounted?
Take out SDcard, and reboot MeLE. It will now boot ICS, but only on HDMI@720p.


# zfs set mountpoint=/roger mypool/roger
I can confirm BubbleUPNP + 2160pPlayer will play 1080p MKVs over network. Nice!
(Note the dataset name, ie pool+fs, starts with pool name 'mypool', no leading slash). ZFS remounts it for you.


And remove it:
# zfs destroy mypool/roger


How you will probably create your media folder:
=== Google Market/Play ===


# zfs create -o mountpoint=/media -o atime=off -o compression=on mypool/secure
I installed one of the Terminal programs, and told adb to use TCP (haven't bothered to open my mele yet). Using adb and the instructions found [http://www.slatedroid.com/topic/30855-scripts-allwinner-a10-tablets-google-play-script/ allwinner a10 scripts] I loaded Google Market/Play to the mele.
# zfs set sharenfs=rw=@192.168.11,root=@192.168.11 zpool/secure


Note I created "mypool/secure" (dataset name) but asked it to be mounted on "/media". Dataset name, vs mountpoint. Just as you can create "mypool/warez" and have it mounted as "/ftp"


# zfs list mypool/secure
mypool/secure                906G  2.45T  906G  /media


Confirm that the NFS sharing worked:
=== Changing resolution ===


# showmount -e 127.0.0.1
This refers to the Beta ICS4. Probably is not useful any more, but I will leave it here for reference.
export list for 127.0.0.1:
/media  @192.168.11


CAVEAT: NFS will only work if it can look up hostnames. So your A100/PC needs to live in /etc/hosts on the NAS (and most likely NAS needs to be in hosts on those machines too). Or your router returns some name for those IPs when looked up.
Changing resolution can be done by modifying the boot time scripts that the A10 uses. Usually done on a separate boot partition. For example, the Mele image has the files:


When you set "sharenfs" Solaris will automatically share the volume, but you can control it manually as well.
mount /dev/mmcblk0p1 /mnt
ls -l /mnt/
evb.bin


  # zfs shareall
  git clone https://github.com/amery/sunxi-tools
  # zfs unshare mypool/secure
cd sunxi-tools
  make
./bin2fex /mnt/evb.bin > evb.fex   


But you most likely will only need to "shareall" if you use "encryption" with your filesystem. If you do use encrypted, this is what you do after reboot:
Edit the file any odd way you want, changing '''screen0_output_type''' and '''screen0_output_mode'''. See modes here: [https://github.com/amery/linux-allwinner/blob/allwinner-v3.0-android-v2/include/linux/drv_display_sun4i.h#L132]


  # zfs mount mypool/secure
  ./fex2bin evb.fex > /mnt/evb.bin
Enter passphrase: $password
# zfs share mypool/secure
(Or # zfs shareall)


All ZFS attributes (or are they called properties?) can have user-defined values. As it happens, llink will read properties called "net.lundman:sharellink" and if set to "on" will add to ROOTs.


# zfs set net.lundman:sharellink=on mypool/secure
If you are running the Android 4 (ICS) Beta that was released, to change the resolution to HDMI 1080p, you can do this. Using either a terminal program on Android (ConnectionBot for example) or the USB Console (if connected).


On the mele root shell
setprop service.adb.tcp.port 5555
stop adbd
start adbd
netstat -na      # Check that it is listening on port 5555


=== Troubles ===
On remote adb machine
adb connect 192.168.xxx.xxx    # Put in the Mele's IP
adb shell
adb> mount -t vfat /dev/block/nanda /mnt/obb
adb> exit
adb push script-HDMI-1080p60.bin /mnt/obb/
adb shell
adb> cd /mnt/obb
adb> busybox cp script-HDMI-1080p60.bin script.bin


If you lose a HDD, pull the HDD out of the NAS. And insert a replacement drive.
If you don't want to edit the script file yourself, you can download my prepared one:
[http://www.lundman.net/ftp/mele/script-HDMI-1080p60.bin script-HDMI-1080p60.bin]


First you need to tell the OS that a new disk is attached:
=== U-boot ===


# cfgadm -al
Since I added ZFS to u-boot for CuBox, and also patched in Samsungs EXT4 patches, I built hno's u-boot to test.
Ap_Id                                    Type        Receptacle  Occupant    Condition
sata1/5                                disk        connected    unconfigured  ok


  # cfgadm -c configure sata1/5
  https://github.com/lundman/uboot-allwinner/tree/zfs


If you have "autoreplace" set on the pool, you are done. But let's assume you have not.
wget http://lundman.net/ftp/mele/sunxi-spl.bin
 
  dd if=sunxi-spl.bin of=/dev/sdc bs=1024 seek=8        # Obviously, '''sdc''' is my SDcard, change device to applicable.
  # zpool status
            c10t5d0                FAILED      0    0    0
 
# zpool replace mypool c10t5d0 c10t5d0
 
# zpool status
action: Online the device using 'zpool online' or replace the device with
        'zpool replace'.
scan: resilvered 27.5G in 0h21m (27%) ETA 4 hours 12 minutes.
   
   
        NAME                        STATE    READ WRITE CKSUM
wget http://lundman.net/ftp/mele/u-boot.bin
        mypool                      DEGRADED    0    0    0
dd if=u-boot.bin of=/dev/sdc bs=1024 seek=32          # Obviously, '''sdc''' is my SDcard, change device to applicable.
            c10t5d0                FAILED      0    0    0
            c10t5d0/1              replacing    0    0    0


 
U-Boot 2012.04.01-g39085db-dirty (May 29 2012 - 02:29:31) Allwinner Technology
=== Snapshots ===
 
 
Snapshots can be useful. If you are to try something new, or do some changes, upgrade OS, protect yourself from accidentally deleting all files.
 
# zfs list mypool/secure
mypool/secure                906G  2.45T  906G  /media
# zfs snapshot mypool/secure@20110708
   
   
  # zfs list -t all
  CPU:  SUNXI Family
  mypool/secure                            906G  2.45T  906G /media
Board: A10-EVB
  mypool/secure@20110708                      0      -   906G  -
  DRAM: 512 MiB
 
  MMC:   SUNXI SD/MMC: 0
To create a snapshot, just give the dataset name (mypool/secure) @ snapshot-name. It can be any name, but as convention, many people use the date. Note the snapshot is taking 0 bytes of space. It only records the differences. So, let's delete something:
  *** Warning - bad CRC, using default environment
 
  -rwxrwxrwx  1 501 501  250974208 2007-08-22 19:15 make_big_words.avi
# rm make_big_words.avi
   
   
  mypool/secure                            906G  2.45T  905G  /media
  sun4i#zfsload
  mypool/secure@20110708                    238M      -  906G  -
  zfsload - load binary file from a ZFS filesystem


Deleted 250M worth of data, so the snapshot now takes up 238M.
  sun4i#zfsload mmc 0:2 0x48000000 /boot/@/uImage
 
Loading file "/boot/@/uImage" from mmc device 0:2 xxa2
If you are happy with the changes, just destroy the snapshot to release the space back.
  zfs fsname = '/boot/' snapname='<NULL>' filename = '/uImage'
 
  4230340 bytes read
  # zfs destroy mypool/secure@20110708
 
Am I the only one who is unhappy that the same command 'destroy' is used for both? Since "zfs destroy mypool/secure" and "zfs destroy mypool/secure@20110708" are ''vastly'' different.
Or even "mypool/secure @20110708". Oops, that space....
 
However, if you changed your mind, and want it back:
 
  # zfs rollback mypool/secure@20110708
  # zfs list -t all
   
   
  mypool/secure                            906G 2.45T   906G /media
  sun4i#bootm 0x48000000
mypool/secure@20110708                  1.60K      -  906G -
  ## Booting kernel from Legacy Image at 48000000 ...
  Image Name:  Linux-3.0.8+
  Image Type:   ARM Linux Kernel Image (uncompressed)
  Data Size:    4230276 Bytes = 4 MiB
  Load Address: 40008000
  Entry Point: 40008000
  Verifying Checksum ... OK
  Loading Kernel Image ... OK
  OK
   
   
  # ls -l make_big_words.avi
  Starting kernel ...
-rwxrwxrwx 1 501 501 250974208 2007-08-22 19:15 make_big_words.avi
   
   
  # zfs destroy mypool/secure@20110708
  DRAM: 512[    0.000000] Initializing cgroup subsys cpuset




=== SMB ===
=== Android Kernel ===


How to share with SMB
I wanted to replace the ICS4 kernel with my own, for the nic fixes. These are the steps I took:


Enable the SMB servers
git clone https://github.com/amery/linux-allwinner
  # svcadm enable -r smb/server
git branch lichee-3.0.8-sun4i
make sun4i_crane_defconfig
Check that .config has
CONFIG_MODVERSIONS=y
  # CONFIG_MODULE_SRCVERSION_ALL is not set


Join a workgroup
The wemac nic was panicing on boot everytime, until I changed this:
# smbadm join -w ''workgroup-name''


Make sure PAM is told to keep SMB passwords as well:
drivers/net/sun4i/sun4i_wemac.c
#define PHY_POWER 0  /* was 1 */


  # vi /etc/pam.conf
  make uImage
other password required pam_smb_passwd.so.1 nowarn
at the end of the file.


Set your password again to save SMB password
From android, I used ConnectBot to make a copy of the 'boot' partition, nandc.
# passwd ''username''


Turn on sharing for your dataset
adb shell
  # zfs set sharesmb=on mypool/secure
  adb> dd if=/dev/block/nandc of=/mnt/sdcard/nandc bs=65536
OR
  adb pull /mnt/sdcard/nandc
For example, to specify a resource name of myfs for the ztank/myfs file system, type:
  # zfs set sharesmb=name=myfs ztank/myfs


Windows is case insensitive, so you most likely want to share your filesystems like this:
Then split it up into kernel and ramfs, you can find split_bootimg.pl my storage area (url above)


  # zfs create -o casesensitivity=mixed -o nbmand=on -o sharesmb=name=yourfs ztank/yourfs
  # ./split_bootimg.pl nandc
Page size: 2048 (0x00000800)
Kernel size: 8410564 (0x008055c4)
Ramdisk size: 975609 (0x000ee2f9)
Second size: 0 (0x00000000)
Board name:
Command line:
Writing nandc-kernel ... complete.
Writing nandc-ramdisk.gz ... complete.


Verify that it is being shared:
The idea is to make a new kernel, that looks roughly the same as nandc-kernel, and re-use the nandc-ramdisk.gz


# sharemgr show -vp
Once the compile has finished, we make a new image. According to the nandc ANDROID! header, the base address for Mele is 0x40000000


# mkbootimg --base 40000000 --kernel arch/arm/boot/Image --ramdisk ../nandc-ramdisk.gz -o ../mynewimage.img


Now I boot into Miniand image on SD card, use my nand.ko to load the device for /dev/nand*. You can find my Miniand kernel '''uImage''' and '''nand.ko''' in the storage area too. The default Miniand kernel did not come with nand driver.


=== Solaris Admin ===
# modprobe nand.ko
# dd if=mynewimage.img of=/dev/nandc bs=2048
# sync
# reboot


and remove the SD card to boot Android. If you want to undo, and go back to ICS4, put '''nandc''' file instead of '''mynewimage.img''' in the '''dd''' line above.


General Solaris crap:
=== Mele's Wired Network Interface ===


The old SYSV style /etc/init.d and /etc/rc2.d/ still exists, but is no longer used. Some older, or legacy programs, may still put start/stop scripts in there. They will work.
The wired nic in the Mele is a '''wemac''' from Davidcom. It is unfortunately quite poor. You will get decent 100MB speeds from it, but it uses the CPU. If you do any transfers while trying to watch video (including watching video over network) it will stutter for 1080p. Interestingly if you use SD, or USB while watching, it has no problem.


The new system uses SMF. List all your services, and states:
The WIFI driver sits on the USB bus and is not affected by this.


# svcs -a
Using a USBEthernet dongle (I tried an Apple brand) also works without issues.
legacy_run    Jun_06  lrc:/etc/rc2_d/S72autoinstall
disabled      Jun_06  svc:/network/ipsec/ike:default
disabled      Jun_06  svc:/network/ftp:default
online        Jun_06  svc:/network/ssh:default
(Insert giant list here).


You can see S72autoinstall ran with legacy stuff. You have ipsec/ike, but it is not to run. And you have ssh (daemon) and it is running just fine.


If something dies (say, sshd) the SMF system will automatically restart it. This is the main advantage with the new system
=== ZFS on Android ===


To enable something to run:
I have already ported ZFS to ARM, so that should just work if you compile ZFS with your kernel. But I also wanted to see if I can get ZFS to work with Android. The modules do load ok, but execution does not work:


  # svcadm enable ftp
  # cd /mnt/sdcard/
You could use "svcadm enable svc:/network/ftp:default" here, but that is a bit tedious, so as long as it is unique, you can shorten it.
# insmod spl.ko && insmod zavl.ko&&insmod znvpair.ko&&insmod zunicode.ko&&insmod zcommon.ko&&insmod zfs.ko&&insmod zpios.ko&&cp zpool /mnt/obb/&&chmod 755 /mnt/obb/zpool
# cd /mnt/obb
# strace -f ./zpool create melepool /dev/block/sda1   
open("/dev/block/sda1", O_WRONLY|O_EXCL|O_LARGEFILE) = 6
write(6, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 4096) = 4096
fdatasync(6)                            = 0
close(6)                                = 0
open("/melepool", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|0x80000) = -1 ENOENT (No such file or directory)
ioctl(3, ITE_GPIO_IN


# svcs ftp
and it hangs.
STATE          STIME    FMRI
online        Jun_06  svc:/network/ftp:default


turn it off:


# svcadm disable ftp
=== djmount for Android ===


Restarting:
So one option is to have a mediaplayer with UPNP ability, like that of BubbleUPNP or PlugPlayer. However, both of these do poorly with Mele's remote control. With Bubble you can not click on Directories to enter them, but have to Mouse-Mode in/out to do so.


# svcadm restart llink
So one option is to mount all UPNP devices as a directory. Since Mele's kernel already comes with FUSE, I compiled '''djmount''' for it (patched version with >2GB size fixed).


Although, since you know it is going to be restarted automatically, you can just "pkill llink". I mean, it's rude, but works :)
% adb push djmount /mnt/obb
% adb shell
# cd /mnt/obb
# chmod 755 djmount
# ./djmount  -o allow_other /mnt/sdcard/Pictures                # No reason to pick "Pictures" I just wanted an existing directory
# ls -l Pictures/                               
-r--r--r-- root    root          49 2000-01-01 20:00 devices
dr-xr-xr-x root    root              2000-01-01 20:00 llink-daemon UPNP Media Server (MediaServer) : 1
# ls -l Pictures/llink-daemon\ UPNP\ Media\ Server\ \ \(MediaServer\)\ \:\ 1/
dr-xr-xr-x root    root              2000-01-01 20:00 DVD
dr-xr-xr-x root    root              2000-01-01 20:00 Game of Thrones
dr-xr-xr-x root    root              2000-01-01 20:00 Music
dr-xr-xr-x root    root              2000-01-01 20:00 Video
-r--r--r-- root    root    14010368 2000-01-01 20:00 movie.m4v


If something dies too many times, they can go into "maintenance" state:
And indeed, if you use the File browser in ICS4, you can just enter that directory, and play any video. Note that '''djmount''' is pretty slow on listing directories, and I think we might want to look at speeding that up if we are to use it long term. Also, increase the cache timeout from 60s to something much higher, like 10 minutes.


# svcs llink
STATE          STIME    FMRI
maintenance  Jun_06  svc:/network/llink:default


Then you need to clear its state first.


# svcadm clear llink
=== PS3EYE WebCam ===
# svcadm enable llink


Note that SMF has dependency built in. So ssh it dependent on network/physical etc, and will only start when those run correctly:
I wanted to see if the PS3 Eye would work with Mele, and Skype.


# svcs -l ssh
Video:
dependency  require_all/none svc:/system/filesystem/local (online)
dependency  optional_all/none svc:/system/filesystem/autofs (online)
dependency  require_all/none svc:/network/loopback (online)
dependency  require_all/none svc:/network/physical (multiple)
dependency  require_all/none svc:/system/cryptosvc (online)
dependency  require_all/none svc:/system/utmp (online)
dependency  optional_all/error svc:/network/ipfilter:default (disabled)
dependency  require_all/restart file://localhost/etc/ssh/sshd_config (online)
So if something is not starting, it may not be something wrong with that program, but rather that a dependent service is not running.
 
 
There is a "hd" program that lists some bits, like your HDD temperatures:
 
# /data/hd
Device    Serial        Vendor  Model            Rev  Temperature
------    ------        ------  -----            ---- -----------
c10t0d0p0  43M324HP783S  ATA      OCZ-AGILITY      1.4  255 C (491 F)
c10t1d0p0  XHJDWS510824  ATA      SAMSUNG HD103SI  1113 31 C (87 F)
c10t2d0p0  XGJ90Z400082  ATA      SAMSUNG HD103SI  1118 35 C (95 F)
c10t3d0p0  XGJ90SB01390  ATA      SAMSUNG HD103SI  1118 34 C (93 F)
c10t4d0p0  XGJ90Z400080  ATA      SAMSUNG HD103SI  1118 34 C (93 F)
 
I assure you that the SSD is not on fire.
 
Power management is in /etc/power.conf
# cat /etc/power.conf
device-dependency-property removable-media /dev/fb
autopm                  enable
autoS3                  default
cpupm                  enable
cpu-threshold          1s
# Auto-Shutdown        Idle(min)      Start/Finish(hh:mm)    Behavior
autoshutdown            30              9:00 9:00              noshutdown
device-thresholds  /pci@0,0/pci8086,244e@1e/pci11ab,11ab@0/disk@0,0    10m
device-thresholds  /pci@0,0/pci8086,244e@1e/pci11ab,11ab@0/disk@1,0    10m
device-thresholds  /pci@0,0/pci8086,244e@1e/pci11ab,11ab@0/disk@2,0    10m
device-thresholds  /pci@0,0/pci8086,244e@1e/pci11ab,11ab@0/disk@3,0    10m
device-thresholds  /pci@0,0/pci8086,244e@1e/pci11ab,11ab@0/disk@4,0    10m


# insmod gspca_main.ko                               
# insmod gspca_ov534.ko videomode=13     


That makes the camera work with Skype and '''Zoom Camera''' app. When I tried one of the 640x480 modes it just hangs, so currently it is 320x240@60.


Audio:


* The package manager is called "pkg".
No idea. The device shows:


  # pkg list
  # cat /proc/asound/cards                             
0 [sun4icodec    ]: sun4i-CODEC - sun4i-CODEC
                      sun4i-CODEC  Audio Codec
1 [sun4isndhdmi  ]:  - sun4i-sndhdmi
                      sun4i-sndhdmi
2 [CameraB409241  ]: USB-Audio - USB Camera-B4.09.24.1
                      OmniVision Technologies, Inc. USB Camera-B4.09.24.1 at usb-sw-ehci-1.3, high sp
3 [sun4isndspdif  ]:  - sun4i-sndspdif
                      sun4i-sndspdif


# pkg install gnu-emacs-no-x11
And we get the device nodes:


  # pkg search python
  # ls -l /dev/snd/
crw-rw---- system  audio    116,  0 2012-07-03 14:12 controlC0
crw-rw---- system  audio    116,  32 2012-07-03 14:12 controlC1
crw-rw---- system  audio    116,  64 2012-07-03 14:12 controlC2
crw-rw---- system  audio    116,  96 2012-07-03 14:12 controlC3
crwxrwxrwx system  system  116,  24 2012-07-03 14:12 pcmC0D0c
crwxrwxrwx system  system  116,  16 2012-07-03 14:12 pcmC0D0p
crw-rw---- system  audio    116,  48 2012-07-03 14:12 pcmC1D0p
crw-rw---- system  audio    116,  88 2012-07-03 14:12 pcmC2D0c
crw-rw---- system  audio    116, 112 2012-07-03 14:12 pcmC3D0p
crw-rw---- system  audio    116,  33 2012-07-03 14:12 timer


But no idea how to tell Android to use the USB device as the main microphone.


# setprop usb.audio.cap.device pcmC0D0c
# setprop media.audio.in.mode usb


*  llink lives in /usr/local/etc/llink/ with binaries in /usr/local/bin/
Neither of those work.

Revision as of 07:05, 24 October 2012

MeLE A2000

Mele file storage

http://www.lundman.net/ftp/mele/


v1.3BETA firmware

Mele_HTPC_0929_BETA_V1.3.rar
Mele_HTPC_0929_BETA_V1.3.ddimg.bz2

Exactly the same issues as v1.2. I can not see anything new, nobody should run this.

However, TMerle has taken this image and made it english, removed the annoying apps, and added Google Store. Huzzah!

If you want to replace the kernel, with the NIC patched kernel, do this: 

# wget http://lundman.net/ftp/mele/mele.v1.3.nandc-new
# dd if=/dev/nandc of=original_nandc.bin bs=65536           # Use /dev/block/nandc if on Android
# dd if=mele.v1.3.nandc-new of=/dev/nandc bs=65536

Now, when I boot, the wemac NIC doesn't work any more (link stays down). But if I replace the script.bin it works again. I do not know which part of script.bin needs to be fixed. Someone with time could look into this. There are only about 20 lines when you diff them, but none in emac area. 

# wget http://lundman.net/ftp/mele/mele-1.3-script-fixed.bin
# mount -t vfat /dev/nanda /mnt
# cp /mnt/script.bin /mnt/script-original.bin
# cp mele-1.3-script-fixed.bin /mnt/script/bin
# umount /mnt

For those of you who also wishes to make advantage of the ZFS in the kernel, you additionally need to get: 

# wget http://lundman.net/ftp/mele/zpool_builtin-1.3
# wget http://lundman.net/ftp/mele/zfs_builtin-1.3
# mount -o remount,rw /system
# busybox cp zpool_builtin-1.3 /system/bin/zpool
# busybox cp zfs_builtin-1.3 /system/bin/zfs
# touch /etc/mtab
# zpool import -d /dev/block yourpoolname

Personally, I also recommend: 

# cd /system/media/
# mv bootanimation.zip bootanimation.zip-orig

v1.2 firmware

Mele_HTPC_120907_Ver1.2.rar

This does not include Google Market/Play Store. Has a strange launch screen that appears not trivial to replace. It is loaded with chinese apps and ad/malware. I would not recommend anyone to run this.

Status

Current status with the Mele A2000, Allwinner A10.

Official release: Android 4 ICS, 4.0.8. Kernel: 3.0.31+

Positive:

  • Video playback 1080p
  • MKV playback
  • TS playback
  • YouTube
  • Android market and Games (Angry Birds etc)

Negative:

  • Network Streaming Fixed. NIC has been patched to allow smooth 1080p steaming
  • Audio. The settings; CODEC no sound, but probably on RCA. HDMI choppy sound, unusable. If made to work, only stereo on HDMI. SPDIF not working, does not turn on. (No red light)
  • Bitstreaming; Unconfirmed since SPDIF is not functional. But can the hardware bitstream TrueHD, and DTS-MA ?
  • 10bit video does not play (not supported by hardware, CPU too slow for software)
  • AVI/XviD does not play (not supported by hardware, CPU too slow for software)

Currently, it is no good for mediaplayer. But if all you want is a toy to play youtube, some android games, and only stereo sound, it is definitely capable.


Android 4 ICS wired NIC patch

I have been working on trying to improve the wemac NIC driver in the Mele A2000 Allwinner A10 hardware, which will stutter when playing 720p/1080p over network. The current patch makes it much better, such that I think it is usable now. There is a mynewerimage.img image in the storage area, that you can dd to the nandc device. I will work on submitting the patch upstream.

For example, if you boot miniand image: 

# modprobe nand     # nand.ko on my storage area too
# wget http://lundman.net/ftp/mele/mynewerimage.img
# dd if=/dev/nandc of=mele_nandc_backup.bin bs=65536
# dd if=mynewerimage.img of=/dev/nandc bs=65536
# sync
# reboot -f

And take out the SD card to boot Android again. If you do this using Android, the device node is /dev/block/nandc

Android 4 ICS official Mele image

The official Mele Android ICS image is out, called Mele_HTPC_Android_4.0_V1.rar which you need to use PhoenixCard to "burn". Once installed, you can use audiopatch1.3.apk to enable some sound features. Otherwise it seems quite similar to A10 firmware.

For those not using Windows, I also made a dd image: Mele_HTPC_Android_4.0_V1.ddimg.bin.bz2 [1] Just dd the whole thing to your raw device.

Android 4 IceCreamSandwich

Update: the non-beta release of ICS4 came out (for the A10, not Mele's release), which has settings/display, and lets you chose resolution

For Unix and clones: 

wget http://www.lundman.net/ftp/mele/homlet_4.0_v1.0_20120609_dd.img.lzma
7z x homlet_4.0_v1.0_20120609_dd.img.lzma
sudo dd if=homlet_4.0_v1.0_20120609_dd.img of=/dev/sdX bs=1M
sync

Where you need to replace X in /dev/sdX by the correct letter for your SD card reader. Now insert the SD card in your Mele, and wait until the LED stops blinking, remove the SD card and restart the device. Et voila! (Read more: [2]) See I kept the paste URL cos I'm nice! :)


There is also an audiopatch for the ICS4 image to get sound to work. Copy over audiopatch1.2.apk (adb, or physical media) to your ICS4, install and run.

Not convinced it makes any difference for me. Audio appears not to work still.

It appears the contents on audiopatch1.2 is pretty much just libswa.so. Not entirely sure what it thinks to do with it, but if I do a find from root, there is no such library, before and after running patch.

I copied the file by hand: 

busybox cp /data/data/com.android.audiopatch/files/libswa.so /system/lib/

and I get sound playing videos with some audio formats now. Like, TV MKV releases.

Mele A2000

I purchased a MeLE A2000 from Tom over at aliexpress, and been playing around with it as well. First I wanted to install ICS4, to do that I downloaded the android_4.0.img file from the 'net. Alas, there is a large volume of confusing information on what to do with this. 

http://www.lundman.net/ftp/mele/ 
https://www.wuala.com/zercosz/Mele%20A2000/Firmware/?key=ThisIsFC2012

For the MeLE A2000, I also downloaded PhoenixCardV303(win7) and installed that in my VirtualBox Win7 system, forwarded the OSX USB drive and told it to install android_4.0.img. 

https://www.wuala.com/zercosz/Mele%20A2000/Utilidades%20Mele/?key=ThisIsFC2012
http://www.lundman.net/ftp/mele/

After that, I inserted the SD card into Mele, and rebooted.

The power LED will blink RED + BLUE for a while, then power LED will turn off.

Take out SDcard, and reboot MeLE. It will now boot ICS, but only on HDMI@720p.

I can confirm BubbleUPNP + 2160pPlayer will play 1080p MKVs over network. Nice!


Google Market/Play

I installed one of the Terminal programs, and told adb to use TCP (haven't bothered to open my mele yet). Using adb and the instructions found allwinner a10 scripts I loaded Google Market/Play to the mele.


Changing resolution

This refers to the Beta ICS4. Probably is not useful any more, but I will leave it here for reference.

Changing resolution can be done by modifying the boot time scripts that the A10 uses. Usually done on a separate boot partition. For example, the Mele image has the files: 

mount /dev/mmcblk0p1 /mnt
ls -l /mnt/
evb.bin

git clone https://github.com/amery/sunxi-tools
cd sunxi-tools
make
./bin2fex /mnt/evb.bin > evb.fex

Edit the file any odd way you want, changing screen0_output_type and screen0_output_mode. See modes here: [3] 

./fex2bin evb.fex > /mnt/evb.bin


If you are running the Android 4 (ICS) Beta that was released, to change the resolution to HDMI 1080p, you can do this. Using either a terminal program on Android (ConnectionBot for example) or the USB Console (if connected).

On the mele root shell 

setprop service.adb.tcp.port 5555
stop adbd
start adbd
netstat -na       # Check that it is listening on port 5555

On remote adb machine 

adb connect 192.168.xxx.xxx    # Put in the Mele's IP
adb shell
adb> mount -t vfat /dev/block/nanda /mnt/obb
adb> exit
adb push script-HDMI-1080p60.bin /mnt/obb/
adb shell
adb> cd /mnt/obb
adb> busybox cp script-HDMI-1080p60.bin script.bin

If you don't want to edit the script file yourself, you can download my prepared one: script-HDMI-1080p60.bin

U-boot

Since I added ZFS to u-boot for CuBox, and also patched in Samsungs EXT4 patches, I built hno's u-boot to test. 

https://github.com/lundman/uboot-allwinner/tree/zfs

wget http://lundman.net/ftp/mele/sunxi-spl.bin
dd if=sunxi-spl.bin of=/dev/sdc bs=1024 seek=8        # Obviously, sdc is my SDcard, change device to applicable.

wget http://lundman.net/ftp/mele/u-boot.bin
dd if=u-boot.bin of=/dev/sdc bs=1024 seek=32          # Obviously, sdc is my SDcard, change device to applicable.

U-Boot 2012.04.01-g39085db-dirty (May 29 2012 - 02:29:31) Allwinner Technology 

CPU:   SUNXI Family
Board: A10-EVB
DRAM:  512 MiB
MMC:   SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environment

sun4i#zfsload
zfsload - load binary file from a ZFS filesystem

sun4i#zfsload mmc 0:2 0x48000000 /boot/@/uImage
Loading file "/boot/@/uImage" from mmc device 0:2 xxa2
zfs fsname = '/boot/' snapname='<NULL>' filename = '/uImage'
4230340 bytes read

sun4i#bootm 0x48000000
## Booting kernel from Legacy Image at 48000000 ...
  Image Name:   Linux-3.0.8+
  Image Type:   ARM Linux Kernel Image (uncompressed)
  Data Size:    4230276 Bytes = 4 MiB
  Load Address: 40008000
  Entry Point:  40008000
  Verifying Checksum ... OK
  Loading Kernel Image ... OK
OK

Starting kernel ...

DRAM: 512[    0.000000] Initializing cgroup subsys cpuset


Android Kernel

I wanted to replace the ICS4 kernel with my own, for the nic fixes. These are the steps I took: 

git clone https://github.com/amery/linux-allwinner
git branch lichee-3.0.8-sun4i
make sun4i_crane_defconfig

Check that .config has 

CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set

The wemac nic was panicing on boot everytime, until I changed this: 

drivers/net/sun4i/sun4i_wemac.c
#define PHY_POWER 0   /* was 1 */

make uImage

From android, I used ConnectBot to make a copy of the 'boot' partition, nandc. 

adb shell
adb> dd if=/dev/block/nandc of=/mnt/sdcard/nandc bs=65536
adb pull /mnt/sdcard/nandc

Then split it up into kernel and ramfs, you can find split_bootimg.pl my storage area (url above) 

# ./split_bootimg.pl nandc
Page size: 2048 (0x00000800)
Kernel size: 8410564 (0x008055c4)
Ramdisk size: 975609 (0x000ee2f9)
Second size: 0 (0x00000000)
Board name: 
Command line: 
Writing nandc-kernel ... complete.
Writing nandc-ramdisk.gz ... complete.

The idea is to make a new kernel, that looks roughly the same as nandc-kernel, and re-use the nandc-ramdisk.gz

Once the compile has finished, we make a new image. According to the nandc ANDROID! header, the base address for Mele is 0x40000000 

# mkbootimg --base 40000000 --kernel arch/arm/boot/Image --ramdisk ../nandc-ramdisk.gz -o ../mynewimage.img

Now I boot into Miniand image on SD card, use my nand.ko to load the device for /dev/nand*. You can find my Miniand kernel uImage and nand.ko in the storage area too. The default Miniand kernel did not come with nand driver. 

# modprobe nand.ko
# dd if=mynewimage.img of=/dev/nandc bs=2048
# sync
# reboot

and remove the SD card to boot Android. If you want to undo, and go back to ICS4, put nandc file instead of mynewimage.img in the dd line above.

Mele's Wired Network Interface

The wired nic in the Mele is a wemac from Davidcom. It is unfortunately quite poor. You will get decent 100MB speeds from it, but it uses the CPU. If you do any transfers while trying to watch video (including watching video over network) it will stutter for 1080p. Interestingly if you use SD, or USB while watching, it has no problem.

The WIFI driver sits on the USB bus and is not affected by this.

Using a USBEthernet dongle (I tried an Apple brand) also works without issues.


ZFS on Android

I have already ported ZFS to ARM, so that should just work if you compile ZFS with your kernel. But I also wanted to see if I can get ZFS to work with Android. The modules do load ok, but execution does not work: 

# cd /mnt/sdcard/
# insmod spl.ko && insmod zavl.ko&&insmod znvpair.ko&&insmod zunicode.ko&&insmod zcommon.ko&&insmod zfs.ko&&insmod zpios.ko&&cp zpool /mnt/obb/&&chmod 755 /mnt/obb/zpool
# cd /mnt/obb
# strace -f ./zpool create melepool /dev/block/sda1    
open("/dev/block/sda1", O_WRONLY|O_EXCL|O_LARGEFILE) = 6
write(6, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 4096) = 4096
fdatasync(6)                            = 0
close(6)                                = 0
open("/melepool", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|0x80000) = -1 ENOENT (No such file or directory)
ioctl(3, ITE_GPIO_IN

and it hangs.


djmount for Android

So one option is to have a mediaplayer with UPNP ability, like that of BubbleUPNP or PlugPlayer. However, both of these do poorly with Mele's remote control. With Bubble you can not click on Directories to enter them, but have to Mouse-Mode in/out to do so.

So one option is to mount all UPNP devices as a directory. Since Mele's kernel already comes with FUSE, I compiled djmount for it (patched version with >2GB size fixed). 

% adb push djmount /mnt/obb
% adb shell
# cd /mnt/obb
# chmod 755 djmount
# ./djmount  -o allow_other /mnt/sdcard/Pictures                # No reason to pick "Pictures" I just wanted an existing directory
# ls -l Pictures/                                 
-r--r--r-- root     root           49 2000-01-01 20:00 devices
dr-xr-xr-x root     root              2000-01-01 20:00 llink-daemon UPNP Media Server (MediaServer) : 1

# ls -l Pictures/llink-daemon\ UPNP\ Media\ Server\ \ \(MediaServer\)\ \:\ 1/
dr-xr-xr-x root     root              2000-01-01 20:00 DVD
dr-xr-xr-x root     root              2000-01-01 20:00 Game of Thrones
dr-xr-xr-x root     root              2000-01-01 20:00 Music
dr-xr-xr-x root     root              2000-01-01 20:00 Video
-r--r--r-- root     root     14010368 2000-01-01 20:00 movie.m4v

And indeed, if you use the File browser in ICS4, you can just enter that directory, and play any video. Note that djmount is pretty slow on listing directories, and I think we might want to look at speeding that up if we are to use it long term. Also, increase the cache timeout from 60s to something much higher, like 10 minutes.


PS3EYE WebCam

I wanted to see if the PS3 Eye would work with Mele, and Skype.

Video: 

# insmod gspca_main.ko                                
# insmod gspca_ov534.ko videomode=13

That makes the camera work with Skype and Zoom Camera app. When I tried one of the 640x480 modes it just hangs, so currently it is 320x240@60.

Audio:

No idea. The device shows: 

# cat /proc/asound/cards                              
0 [sun4icodec     ]: sun4i-CODEC - sun4i-CODEC
                     sun4i-CODEC  Audio Codec
1 [sun4isndhdmi   ]:  - sun4i-sndhdmi
                     sun4i-sndhdmi
2 [CameraB409241  ]: USB-Audio - USB Camera-B4.09.24.1
                     OmniVision Technologies, Inc. USB Camera-B4.09.24.1 at usb-sw-ehci-1.3, high sp
3 [sun4isndspdif  ]:  - sun4i-sndspdif
                     sun4i-sndspdif

And we get the device nodes: 

# ls -l /dev/snd/
crw-rw---- system   audio    116,   0 2012-07-03 14:12 controlC0
crw-rw---- system   audio    116,  32 2012-07-03 14:12 controlC1
crw-rw---- system   audio    116,  64 2012-07-03 14:12 controlC2
crw-rw---- system   audio    116,  96 2012-07-03 14:12 controlC3
crwxrwxrwx system   system   116,  24 2012-07-03 14:12 pcmC0D0c
crwxrwxrwx system   system   116,  16 2012-07-03 14:12 pcmC0D0p
crw-rw---- system   audio    116,  48 2012-07-03 14:12 pcmC1D0p
crw-rw---- system   audio    116,  88 2012-07-03 14:12 pcmC2D0c
crw-rw---- system   audio    116, 112 2012-07-03 14:12 pcmC3D0p
crw-rw---- system   audio    116,  33 2012-07-03 14:12 timer

But no idea how to tell Android to use the USB device as the main microphone. 

# setprop usb.audio.cap.device pcmC0D0c
# setprop media.audio.in.mode usb

Neither of those work.

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