* Re: Ubuntu and btrfs root fs
2010-01-21 18:35 ` Ubuntu and btrfs root fs Goffredo Baroncelli
@ 2010-01-21 22:40 ` Thomas Kupper
0 siblings, 0 replies; 2+ messages in thread
From: Thomas Kupper @ 2010-01-21 22:40 UTC (permalink / raw)
To: Goffredo Baroncelli; +Cc: linux-btrfs
Hi Goffredo,
On 21 Jan 2010, at 19:35, Goffredo Baroncelli wrote:
> On Thursday 21 January 2010, you (Thomas Kupper) wrote:
>> Hello Goffredo,
>>
>> I thought maybe email is a more practial way to ask you about it. But if
> there's a better place in your opinion (mailling list?) let me know.
>
> I cc'ed the btrfs-mailing list.
>
>
> [speaking about a btrfs setup for a root filesystem]
>>
>> After setting the permissions on the rootfs folder right it boots with my
> kernel (Hypernation doesn't work although). I did compile the btrfs module
> into the kernel but would like to use a stock kernel with an updated initrd
> image.
>>
>> As you I now additionally installed the 2.6.32-10-generic kernel but tried
> to use the stock btrfs. But it drops to BusyBox because it can't load the
> btrfs module ... because of the libcrc32c module can't be loaded. libcrc32c
> can't be loaded because of a unknown symbol crc32c (of course I added btrfs to
> the module file of initramfs-tools)
> [...]
>
> The list of btrfs dependencies is
>
> $ cat /etc/initramfs-tools/modules
> [..]
> zlib_deflate
> crc32c
> libcrc32c
> btrfs
>
>
> I discovered that after a lot of tests...
>
Now I got working! I summed up two errors, too bad. I was close with the list of modules but forgot to update grub2 (have to do it manually) and I didn't realize that I was booting of an older kernel which I haven't updated the initrd for.
Works great now, thanks a million!
> And for what matters, on my fedora laptop (yes the root fs is btrfs) the
> hibernation seems to work; even tough after the resume an error message
> appeared.
>
Well, that bit still doesn't work, there's just one line in dmesg:
...
[ 1.019071] PM: Resume from disk failed.
...
Have to debug that further, not most critical feature for me since a full boot takes as long as resume on my aging laptop.
>>
>> Thanks for any advise and have a good day,
>> Thomas
>
> BR
> G.Baroncelli
> --
> gpg key@ keyserver.linux.it: Goffredo Baroncelli (ghigo) <kreijackATinwind.it>
> Key fingerprint = 4769 7E51 5293 D36C 814E C054 BF04 F161 3DC5 0512
o/
Thomas
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