[Bug 674841] Re: os-prober 1.40 doesn't detect another ubuntu installation anymore

[Axel Beckert]

Hi Colin,

yes, this bug happens for me, too, with the os-prober versions from
natty (1.44ubuntu1) and oneiric (1.49ubuntu1), but not from maverick
(1.39). Except that the other OS is a Debian Sid and not another Ubuntu.
But I don't think this makes a difference here.

Mounting the root as well as the /boot filesystem neither shows a
warning about an uncleanly unmounted filesystem.

It seems that os-prober works fine, but linux-boot-prober does not. The
other Linux on this box has /boot on /dev/sda1 and / on /dev/sda5.
linux-boot-prober /dev/sda5 just returns nothing while linux-boot-prober
/dev/sda1 finds all kernels, but claims the root filesystem is /dev/sda1
while it is /dev/sda5 as os-prober correctly found out.

U 53/0/2 root at loadrunner:pts/0 03:14:44 [~] # os-prober /dev/sda1
/dev/sda5:Debian GNU/Linux (wheezy/sid):Debian:linux
U 54/0/2 root at loadrunner:pts/0 03:14:52 [~] # os-prober /dev/sda5
/dev/sda5:Debian GNU/Linux (wheezy/sid):Debian:linux
U 55/0/2 root at loadrunner:pts/0 03:14:58 [~] # linux-boot-prober /dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.31-1-686:/initrd.img-2.6.31-1-686:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.32-4-686:/initrd.img-2.6.32-4-686:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.32-5-686:/initrd.img-2.6.32-5-686:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.33-2-686:/initrd.img-2.6.33-2-686:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.34-1-686:/initrd.img-2.6.34-1-686:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.35-trunk-686:/initrd.img-2.6.35-trunk-686:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.36-trunk-686:/initrd.img-2.6.36-trunk-686:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.37-2-686:/initrd.img-2.6.37-2-686:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.37-trunk-686:/initrd.img-2.6.37-trunk-686:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.38-2-686:/initrd.img-2.6.38-2-686:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.39-1-686-pae:/initrd.img-2.6.39-1-686-pae:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-2.6.39-2-686-pae:/initrd.img-2.6.39-2-686-pae:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-3.0.0-1-686-pae:/initrd.img-3.0.0-1-686-pae:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-3.0.0-rc6-686-pae:/initrd.img-3.0.0-rc6-686-pae:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-3.1.0-rc4-686-pae:/initrd.img-3.1.0-rc4-686-pae:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-3.1.0-rc6-686-pae:/initrd.img-3.1.0-rc6-686-pae:root=/dev/sda1
/dev/sda1:/dev/sda1::/vmlinuz-3.1.0-rc7-686-pae:/initrd.img-3.1.0-rc7-686-pae:root=/dev/sda1
U 56/0/2 root at loadrunner:pts/0 03:15:05 [~] # linux-boot-prober /dev/sda5
U 57/0/2 root at loadrunner:pts/0 03:15:14 [~] #

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https://bugs.launchpad.net/bugs/674841

Title:
  os-prober 1.40 doesn't detect another ubuntu installation anymore

Status in “os-prober” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: os-prober

  On Natty development release, os-prober doesn't detect another Ubuntu
  installation on a separate partition, whereas previous maverick
  version does. It's clearly a regression.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: os-prober 1.40
  ProcVersionSignature: Ubuntu 2.6.36-1.7-generic-pae 2.6.36
  Uname: Linux 2.6.36-1-generic-pae i686
  NonfreeKernelModules: nvidia
  Architecture: i386
  CheckboxSubmission: c4273c0f4f2b8d26cd6bf31cadfd2912
  CheckboxSystem: a871981cb5bdf4d6ebd55be46becf77e
  Date: Sat Nov 13 11:49:07 2010
  EcryptfsInUse: Yes
  ProcEnviron:
   SHELL=/bin/bash
   LANG=fr_FR.UTF-8
   LANGUAGE=fr_FR:fr:en_GB:en
  SourcePackage: os-prober

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