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

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

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/963471

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

Logs are attached

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.

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

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

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
      rootfs.

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

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. :-)

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

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 device.map 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/device.map.
    - 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:
      #665993).
    - 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

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

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