Not all OS shown in grub-install screen at end of installation

Bug #963471 reported by Jane Atkinson on 2012-03-23
This bug affects 1 person
Affects Status Importance Assigned to Milestone
grub2 (Ubuntu)
Colin Watson
os-prober (Ubuntu)
Colin Watson

Bug Description

Testing Precise beta2 alternate install. I have two internal SATA drives. My working OS are all on /dev/sdb and I'm installing to /dev/sda

At the screen where the user is asked where to install Grub, not all the OS on my machine are being listed. It mentions two of them - Vista and Lucid - but doesn't refer to the existing Precise install on the same drive.

This wasn't happening in beta1. At that time, though, I had working OS on both drives. (Should that make a difference?)

Although all OS show up in the Grub boot menu on reboot, this message could cause some users to think that there's an error.

Ubuntu QA Website (ubuntuqa) wrote :

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:

tags: added: iso-testing
Colin Watson (cjwatson) wrote :

Could you attach /var/log/installer/syslog and /var/log/installer/partman after this installation?

Changed in debian-installer (Ubuntu):
status: New → Incomplete
Jane Atkinson (irihapeti) wrote :

Logs are attached

Jane Atkinson (irihapeti) wrote :
Colin Watson (cjwatson) wrote :

Thanks. The proximate cause of this is that /dev/sdb5 requires recovery, which means that it can't be mounted normally. Now, I thought that we'd fixed that class of problem using grub-mount. However, grub-mount appears not to be working properly in the installer environment, which causes these symptoms.

affects: debian-installer (Ubuntu) → grub-installer (Ubuntu)
Changed in grub-installer (Ubuntu):
assignee: nobody → Colin Watson (cjwatson)
importance: Undecided → High
status: Incomplete → Confirmed
Colin Watson (cjwatson) wrote :

In fact I believe the problem is that os-prober is trying to use the 'which' tool, which is not available in d-i.

affects: grub-installer (Ubuntu) → os-prober (Ubuntu)
Colin Watson (cjwatson) wrote :

Furthermore, this is going to require grub-probe to be added to grub2. That means this will have to be post-beta2, I think.

Changed in os-prober (Ubuntu):
status: Confirmed → Triaged
Changed in grub2 (Ubuntu):
status: New → Triaged
importance: Undecided → High
assignee: nobody → Colin Watson (cjwatson)
Changed in os-prober (Ubuntu):
milestone: none → ubuntu-12.04
Changed in grub2 (Ubuntu):
milestone: none → ubuntu-12.04
Colin Watson (cjwatson) on 2012-03-27
tags: added: rls-p-tracking
Changed in os-prober (Ubuntu):
status: Triaged → In Progress
Changed in grub2 (Ubuntu):
status: Triaged → In Progress
Colin Watson (cjwatson) on 2012-03-27
Changed in os-prober (Ubuntu):
status: In Progress → Fix Committed
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package os-prober - 1.51ubuntu1

os-prober (1.51ubuntu1) precise; urgency=low

  * Resynchronise with Debian. Remaining changes:
    - Mount btrfs subvolume @ when present to access a btrfs formatted

os-prober (1.51) unstable; urgency=low

  [ Joey Hess ]
  * Relax the MS-DOS detection again now that it will not cause
    false positives for non-FAT filesystems.

  [ Colin Watson ]
  * Use 'type' rather than 'which' to test for grub-mount, as d-i doesn't
    have 'which'. Also test for grub-probe before using it, as that isn't
    currently in grub-mount-udeb and I'm going to need to add it
    (LP: #963471).
 -- Colin Watson <email address hidden> Tue, 27 Mar 2012 18:48:08 +0100

Changed in os-prober (Ubuntu):
status: Fix Committed → Fix Released
Jane Atkinson (irihapeti) wrote :

I tested the alternate install CD of 20120330. This time, the message just before grub-install said that it could find only one OS on /dev/sdb: Vista, which is the only primary partition on the drive. Previously, it was finding Lucid as well (logical partition).

On reboot, all OS were shown correctly in the grub screen.

I know, I've only fixed half this bug so far and wasn't expecting the
whole thing to be fixed yet. :-)

Jane Atkinson (irihapeti) wrote :

Apologies. Sounds like I got ahead of myself. :) I'll wait for further instructions.

Launchpad Janitor (janitor) wrote :

This bug was fixed in the package grub2 - 1.99-20ubuntu1

grub2 (1.99-20ubuntu1) precise; urgency=low

  * Resynchronise with Debian. Remaining changes:
    - Adjust for default Ubuntu boot options ("quiet splash").
    - Default to hiding the menu; holding down Shift at boot will show it.
    - Set a monochromatic theme and an appropriate background for Ubuntu.
    - Apply Ubuntu GRUB Legacy changes to legacy update-grub script.
    - Fix backslash-escaping in merge_debconf_into_conf.
    - Remove "GNU/Linux" from default distributor string.
    - Add crashkernel option.
    - Bypass menu unless other OSes are installed or Shift is pressed.
    - Allow Shift to interrupt 'sleep --interruptible'.
    - Reduce visual clutter in normal mode.
    - Remove verbose messages printed before reading configuration.
    - Suppress kernel/initrd progress messages, except in recovery mode.
    - Show the boot menu if the previous boot failed.
    - Don't generate during grub-install or grub-mkconfig.
    - Adjust upgrade version checks for Ubuntu.
    - Suppress "GRUB loading" message unless Shift is held down.
    - Adjust versions of grub-doc and grub-legacy-doc conflicts.
    - Fix LVM/RAID probing in the absence of /boot/grub/
    - Look for .mo files in /usr/share/locale-langpack first.
    - Build-depend on qemu-kvm rather than qemu-system for grub-pc tests.
    - Check hardware support before using gfxpayload=keep.
    - Put second and subsequent Linux menu entries in a submenu.
    - Preferred resolution detection for VBE.
    - Set vt.handoff=7 for smooth handoff to kernel graphical mode.
    - Update default/grub.md5sum to include maverick's default md5sum.
    - In recovery mode, add nomodeset to the Linux kernel arguments, and
      remove the 'set gfxpayload=keep' command.
    - Skip Windows os-prober entries on Wubi systems, and suppress the menu
      by default if those are the only other-OS entries.
    - Handle probing striped DM-RAID devices.
    - Replace 'single' by 'recovery' when friendly-recovery is installed.
    - Use qemu -no-kvm in tests for now to work around LP #947597.
    - Disable cursor as early as possible in grub_main.

grub2 (1.99-20) unstable; urgency=low

  * Backport kFreeBSD support from upstream to 4k_sectors.patch.

grub2 (1.99-19) unstable; urgency=low

  [ Colin Watson ]
  * Add grub-probe to grub-mount-udeb (LP: #963471).
  * Backport from upstream:
    - Restore CFLAGS after efiemu check (closes: #665772).
    - Include __ctzdi2 and __ctzsi2 from libgcc if present (closes:
    - Support non-512B sectors and agglomerate reads.

  [ Debconf translations ]
  * Croatian (Tomislav Krznar).
 -- Colin Watson <email address hidden> Mon, 02 Apr 2012 22:42:18 +0100

Changed in grub2 (Ubuntu):
status: In Progress → Fix Released
Colin Watson (cjwatson) wrote :

@Jane: this should be completely fixed now and is worth testing.

Jane Atkinson (irihapeti) wrote :

Thanks, Colin.
I've tested it and it's working as expected i.e. showing all the OS.

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