[Bug 1073678] [NEW] Grub not detecting ArchLinux OS correctly

[Charles Hacker]

Public bug reported:

After a recent automatic update of grub, I was surprised to find
ArchLinux did not boot any longer.  Grub resides only in Xubuntu, and I
had not done any updates to ArchLinux.  I was able to boot to ArchLinux
after modifying the automatically generated Grub entry, then creating a
custom entry.

Here is what Grub came up with:

Code:

setparams 'arch (on /dev/sda4)'
insmod part_msdos
insmod ext2
set root='(hd0,msdos4)'
search --no-floppy --fs-uuid --set=root 72b29576-5eb0-4b76-90c8-755c603e2515
linux /boot/vmlinuz-linux root=/dev/hda3 ro
initrd /boot/initramfs-linux.img

When booting, it would come up with a message saying it could not find
/dev/hda3, waiting 10 seconds.

To fix it, I could knew what my configuration was, so I changed this
line:

Code:

linux /boot/vmlinuz-linux root=/dev/sda4 ro

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: grub-pc 1.99-21ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
Uname: Linux 3.2.0-31-generic i686
ApportVersion: 2.0.1-0ubuntu5
Architecture: i386
Date: Wed Oct 31 18:42:09 2012
InstallationMedia: Xubuntu 11.04 "Natty Narwhal" - Release i386 (20110427)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: grub2
UpgradeStatus: Upgraded to precise on 2012-05-27 (156 days ago)

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 precise

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https://bugs.launchpad.net/bugs/1073678

Title:
  Grub not detecting ArchLinux OS correctly

Status in “grub2” package in Ubuntu:
  New

Bug description:
  After a recent automatic update of grub, I was surprised to find
  ArchLinux did not boot any longer.  Grub resides only in Xubuntu, and
  I had not done any updates to ArchLinux.  I was able to boot to
  ArchLinux after modifying the automatically generated Grub entry, then
  creating a custom entry.

  Here is what Grub came up with:

  Code:

  setparams 'arch (on /dev/sda4)'
  insmod part_msdos
  insmod ext2
  set root='(hd0,msdos4)'
  search --no-floppy --fs-uuid --set=root 72b29576-5eb0-4b76-90c8-755c603e2515
  linux /boot/vmlinuz-linux root=/dev/hda3 ro
  initrd /boot/initramfs-linux.img

  When booting, it would come up with a message saying it could not find
  /dev/hda3, waiting 10 seconds.

  To fix it, I could knew what my configuration was, so I changed this
  line:

  Code:

  linux /boot/vmlinuz-linux root=/dev/sda4 ro

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: grub-pc 1.99-21ubuntu3
  ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
  Uname: Linux 3.2.0-31-generic i686
  ApportVersion: 2.0.1-0ubuntu5
  Architecture: i386
  Date: Wed Oct 31 18:42:09 2012
  InstallationMedia: Xubuntu 11.04 "Natty Narwhal" - Release i386 (20110427)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub2
  UpgradeStatus: Upgraded to precise on 2012-05-27 (156 days ago)

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