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Bug#355013: marked as done (initramfs-tools: device mapper device ordering breaks boot (sometimes))

Your message dated Thu, 6 Sep 2007 11:42:50 +0200
with message-id <20070906094250.GD7854@stro.at>
and subject line Bug#355013: initramfs-tools: device mapper device ordering breaks boot (sometimes)
has caused the attached Bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what I am
talking about this indicates a serious mail system misconfiguration
somewhere.  Please contact me immediately.)

Debian bug tracking system administrator
(administrator, Debian Bugs database)
--- Begin Message --- 
Package: initramfs-tools
Version: 0.53
Severity: important

I use LVM on all my disks. I swapped an old laptop disk into another laptop for testing and my laptop now fails to boot normally but rather drops into the busybox.

An analysis of this problem indicates that there are issues with LILO, the initramfs and/or the device mapper.

Here's what appears to be happening. I run lilo, and (after spinning the CPU for about 30-60 seconds!) it deduces that my LVM disk cweekslap/root has id FE00 (I am not sure this is correct, however). So it spits this onto the command line. With a single disk in the laptop we will now boot correctly. I add in the second disk and at boot time, for some reason, the secondary disk (helenlap/home!) is now device FE00. Of course helenlap/home is not a valid root disk (it never was) and the system drops to busybox when it can't find init. I have recovered the situation temporarily with one of three fixes:

1. Use a boot parameter root=/dev/mapper/cweekslap-root
2. remount /dev/mapper/cweekslap-root at the /root mountpoint in the initram disk
3. recreate the /dev/root with mknod /dev/root b 254 2

Nothing is able to work permanently though. I can't make a lilo root= option stick- it turns into numbers.

Note that versions are probably wrong- this report is being filed from another machine.

The actual machine setup is newly upgraded from sid yesterday, with stock 2.6.15 686 kernel and mkinitramfs as the ramdisk generator.

Hope this helps,
Thanks,
Christian 

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.15-k8-1
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)

Versions of packages initramfs-tools depends on:
ii  busybox                       1:1.01-4   Tiny utilities for small and embed
ii  cpio                          2.6-10     GNU cpio -- a program to manage ar
ii  klibc-utils                   1.2.2-3    small statically-linked utilities 
ii  udev                          0.085-1    /dev/ and hotplug management daemo

initramfs-tools recommends no packages.

-- no debconf information

--- End Message ---
--- Begin Message --- 
On Sun, 16 Apr 2006, Christian Weeks wrote:

> I have not. I will look into this. Thank you.
> 
> I have another tentative solution that I will investigate as well when
> time permits. It appears that LVM allows you to make the minor node of a
> partition persistent. I shall see if I can use that to force the minor
> node of the root partition to zero.
 
closing as no more feedback and no second reporter jump in.

best regards

-- 
maks

--- End Message ---
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