[U-Boot] [PATCH] uboot and ZFS

[Marek Vasut]

Dear Jorgen Lundman,

> > Technically, U-Boot is GPLv2+ so GPLv2 only code _may_ not be accepted
> > That is for Wolfgang to decide, but you have been warned :)
> 
> Naturally, he is king after all. There will be a thousand reasons to reject
> it, but hopefully not due to license.

I wonder ... Germany never was a kingdom, or am I wrong? :-) So maybe emperor* 
might be more fitting (it was empire I think)?

> I based my GITHUB after the CuBox fork of u-boot. I will leave it up to
> those guys to submit their patches separately.
> 
> 
> My fork of u-boot is here:
> 
> ** https://github.com/lundman/u-boot
> 
> 
> To see only the change set for adding ZFS:
> 
> ** https://github.com/lundman/u-boot/compare/zfs
> 
> 
> Since I merged in EXT4 patches to get a feel for u-boot, they are here:
> 
> ** https://github.com/lundman/u-boot/compare/ext4
> 
> Only minor strings changes of "ext2" -> "ext4", otherwise the Samsung patch
> V4 posted in here.

Yay, so the ext4 works for you? Why wasn't ext4 merged? Can you post the 
reasoning (maybe links to gmane or something?)

Thanks!

> 
> Lund
> 
> 
> 
> Useless sample output:
> 
> 
> CuBox>> zfsls usb 0:2 /ROOT/@/
> zfs reading label 0 at sector 0 (byte 0)
> ZFS Pool GUID: 8349310002080761692 (73deb535d9a3c75c) Label: GUID:
> 1229383784885
> 2426185 (aa9c7c635319edc9), txg: 1348, SPA v28, ashift: 9
> 
> ZPOOL label 'rpool'
> 
> zfs fsname = '/ROOT/' snapname='<NULL>' filename = '/'
> <DIR>  lib
> <DIR>  sbin
> <DIR>  var
> <DIR>  bin
> <DIR>  dev
> <DIR>  selinux
> <DIR>  usr
> <DIR>  root
> <DIR>  home
> <DIR>  srv
> <DIR>  ttt
> <DIR>  proc
> <DIR>  tmp
> <DIR>  mnt
> <DIR>  etc
> <DIR>  media
> <DIR>  boot
> <DIR>  opt
> <DIR>  sys
> <DIR>  .old-root
> <DIR>  src
>         rootfile.txt
> <DIR>  rpool
> 
> 
> 
> CuBox>> zfsload usb 0:2 0x00200000 /ROOT/@/boot/uImage
> Loading file "/ROOT/@/boot/uImage" from usb device 0:2 usbda2
> zfs reading label 0 at sector 0 (byte 0)
> ...........
> ZFS Pool GUID: 8349310002080761692 (73deb535d9a3c75c) Label: GUID:
> 12293837848852426185 (aa9c7c635319edc9), txg: 1348, SPA v28, ashift: 9
> zfs endian set to little
> zfs fsname = '/ROOT/' snapname='<NULL>' filename = '/boot/uImage'
> 3623192 bytes read
> 
> CuBox>> bootm
> ## Booting kernel from Legacy Image at 00200000 ...
>     Image Name:   Linux-2.6.32.9-dove-5.4.2
>     Created:      2012-01-07  10:23:53 UTC
>     Image Type:   ARM Linux Kernel Image (uncompressed)
>     Data Size:    3623128 Bytes =  3.5 MB
>     Load Address: 00008000
>     Entry Point:  00008000
>     Verifying Checksum ... OK
>     Loading Kernel Image ... OK
> OK
> 
> Starting kernel ...
> 
> [    0.000000] Linux version 2.6.32.9-dove-5.4.2 (rabeeh at kossay-desktop)
> (gcc version 4.3.2 (sdk3.2rc1-ct-ng-1.4.1) ) #46 PREEMPT Sat Jan 7 12:23:38
> IST 2012

* Not the star-wars kind :-)

Best regards,