[Bug 1038093] Re: Fedora17 does not appear in 12.04's GRUB menu

[JBS]

I don't have 12.04.1 LiveCD... But following is from 12.04_amd64 LiveCD.

(1) Without ARCH partition mounted:
ubuntu at ubuntu:~$ sudo os-prober
/dev/sda1:Ubuntu quantal (development branch) (12.10):Ubuntu:linux

(2) With ARCH partition mounted:
ubuntu at ubuntu:~$ sudo os-prober
/dev/sda1:Ubuntu quantal (development branch) (12.10):Ubuntu:linux
/dev/sda3::Arch:linux

The problem also persists with 12.10_amd64 Beta1

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https://bugs.launchpad.net/bugs/1038093

Title:
  Fedora17 does not appear in 12.04's GRUB menu

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

Bug description:
  The os-prober of Ubuntu does not detect Fedora when Fedora's partition
  is unmounted (which is frequent). Consequence: Fedora does not appear
  in Ubuntu's GRUB menu.

  WORKAROUND: mount the Fedora partition before doing update-grub in
  Ubuntu.

  Bug confirmed by several French users with Fedora17 and Ubuntu12.04
  (http://forum.ubuntu-fr.org/viewtopic.php?pid=9695571#p9695571 and
  http://forums.fedora-fr.org/viewtopic.php?id=57393 ).

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