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<H1>[Mageia-dev] Please test dracut (mkinitrd replacement)</H1>
<B>Remy CLOUARD</B>
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TITLE="[Mageia-dev] Please test dracut (mkinitrd replacement)">shikamaru at mageia.org
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<I>Sun Oct 23 21:05:39 CEST 2011</I>
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<PRE>On Fri, Oct 21, 2011 at 12:29:46AM +0100, Colin Guthrie wrote:
><i> Hi,
</I>><i>
</I>><i> Due to upcoming changes to systemd and friends we'll likely need to use
</I>><i> dracut rather than mkinitrd for some setups (i.e. those with LVM volumes
</I>><i> defined in /etc/fstab)
</I>><i>
</I>><i> It would be good if people here could test as we will likely make it the
</I>><i> default at some point in the not too distant future.
</I>><i>
</I>><i> To test:
</I>><i>
</I>><i> sudo -i (or su -)
</I>><i> urpmi dracut
</I>><i> cd /boot
</I>><i> mv initrd-3.1.0-desktop-0.rc10.1.mga2.img initrd-old.img
</I>><i> /sbin/installkernel -N 3.1.0-desktop-0.rc10.1.mga2
</I>done.
><i>
</I>><i>
</I>><i> This should install dracut, move the existing initrd out of the way, and
</I>><i> regenerate a new one using dracut. If you are using a different kernel
</I>><i> version then adjust the two commands accordingly to pick the right version.
</I>><i>
</I>><i> Then just reboot. Hopefully all will go well and you won't notice much
</I>><i> difference :)
</I>><i>
</I>I'm sad to be the first to give bad news about that but:
when I rebooted it didn't work.
Here is the partitionning scheme I have:
/boot 256 MB
raid 0: 2x 60 GB
LVM on raid
/ on logical volume, btrfs filesystem
When I boot with the dracut initrd I don't get my / mounted.
Instead, after a while plymouth disappears and I get the following
message, repeated all over the screen:
modprobe: FATAL: Error inserting btrfs
(/lib/modules/3.1.0-desktop-0.rc10.1.mga2/kernel/fs/btrfs/btrfs.ko.gz)
Unknown symbol in module, or unknown parameter (see dmesg)
When I run dmesg|less:
Everything is fine until my logical volumes are active and then I get
this message repeated over and over:
dracut: Checking, if btrfs device complete
and in the middle of this flood I get this:
scanning for all btrfs devices
failed to open /dev/btrfs_control skipping device registration
scanning devices md0 for LVM volume groups
Reading all physical volumes. This may take a while
Found volume group "kaze" using metadata type lvm2
Partial mode. Incomplete volumes will be processed
5 logical volume(s) in volume group "kaze" now active
Autoassembling MDRaid.
and in the end I get
dracut: Warning: no root device "block:/dev/kaze/cauldron" found
So, to me the problem is neither raid nor LVM but btrfs
Any idea on how to solve this issue ?
In case it can be useful, here is the result of
lsinitrd-dracut /boot/initrd.img : <A HREF="http://pastebin.com/Xe5Jhj38">http://pastebin.com/Xe5Jhj38</A>
><i> If it fails you should still be able to use the previous initrd by
</I>><i> editing the grub command line and specifying the initrd-old.img file
</I>><i> manually.
</I>><i>
</I>Indeed, but does that mean that for the next kernel upgrade it will use
dracut by default ? Is there a way to generate the initrd the old way ?
><i>
</I>><i> Cheers
</I>><i>
</I>><i> Col
</I>><i>
</I>><i> --
</I>><i>
</I>><i> Colin Guthrie
</I>><i> colin(at)mageia.org
</I>><i> <A HREF="http://colin.guthr.ie/">http://colin.guthr.ie/</A>
</I>><i>
</I>><i> Day Job:
</I>><i> Tribalogic Limited <A HREF="http://www.tribalogic.net/">http://www.tribalogic.net/</A>
</I>><i> Open Source:
</I>><i> Mageia Contributor <A HREF="http://www.mageia.org/">http://www.mageia.org/</A>
</I>><i> PulseAudio Hacker <A HREF="http://www.pulseaudio.org/">http://www.pulseaudio.org/</A>
</I>><i> Trac Hacker <A HREF="http://trac.edgewall.org/">http://trac.edgewall.org/</A>
</I>
Thanks in advance,
Regards,
--
Rémy CLOUARD
() ascii ribbon campaign - against html e-mail
/\ www.asciiribbon.org - against proprietary attachments
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