Bug#553896: mdadm: update-initramfs warning due to /dev/md/0 vs. /dev/md0.

[David Anselmi]

Package: mdadm
Version: 3.0-3.1
Severity: minor


Subject: mdadm: update-initramfs warning due to /dev/md/0 vs. /dev/md0.
Package: mdadm
Version: 3.0-3.1
Severity: minor

During upgrade of mdadm (and kernel to 2.6.30), update-initramfs reports:

W: mdadm: You appear to be missing /dev/md/0 from /etc/mdadm/mdadm.conf !
W: mdadm: If this array is required to boot, you must add the following line:
W: mdadm: ARRAY /dev/md/0 UUID=03d88b02:ff765a00:54ce3db4:23a8abf8

The issue is that /usr/share/initramfs-tools/hooks/mdadm finds /dev/md/0 and the
mdadm.conf contained /dev/md0.

I wouldn't have reported this except that README.upgrading-2.5.3.gz says to use
/usr/share/mdadm/mkconf as a guide and it finds /dev/md0.

It appears that this warning doesn't mean anything, but...

The UUID in my mdadm.conf was different than what the array is using (naturally
I tried changing it before digging down to the differing devices).  I wonder
why, as I know I've had the wrong one in the past and at one point had the
correct one?

So I've matched it to mdadm --examine reports.  I'll reply if I'm not able to
boot.  I wonder whether ignorning the warning would have prevented rebooting due
to the incorrect UUID?

Thanks for all your work!
Dave

-- Package-specific info:

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-2-686 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash

Versions of packages mdadm depends on:
ii  debconf                       1.5.28     Debian configuration management sy
ii  libc6                         2.9-25     GNU C Library: Shared libraries
ii  lsb-base                      3.2-23     Linux Standard Base 3.2 init scrip
ii  makedev                       2.3.1-89   creates device files in /dev
ii  udev                          146-5      /dev/ and hotplug management daemo

Versions of packages mdadm recommends:
ii  exim4-daemon-light [mail-tran 4.69-11+b1 lightweight Exim MTA (v4) daemon
ii  module-init-tools             3.11-1     tools for managing Linux kernel mo

mdadm suggests no packages.

-- debconf information excluded

-- Package-specific info:

IMPORTANT:
  please do not forget to include all relevant system information with this
  bug report. You could run
    /usr/share/bug/mdadm/script 3>&1
  as root and attach or include the output.


-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-2-686 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash

Versions of packages mdadm depends on:
ii  debconf                       1.5.28     Debian configuration management sy
ii  libc6                         2.9-25     GNU C Library: Shared libraries
ii  lsb-base                      3.2-23     Linux Standard Base 3.2 init scrip
ii  makedev                       2.3.1-89   creates device files in /dev
ii  udev                          146-5      /dev/ and hotplug management daemo

Versions of packages mdadm recommends:
ii  exim4-daemon-light [mail-tran 4.69-11+b1 lightweight Exim MTA (v4) daemon
ii  module-init-tools             3.11-1     tools for managing Linux kernel mo

mdadm suggests no packages.

-- debconf information excluded