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

[JBS]

I dual-boot Ubuntu and Arch both 64bit. I use Ubuntu-GRUB to boot into
either Systems. Since Arch is a rolling distro it is always there and I
clean install whenever there is new Ubuntu to install. Update-Grub
always finds Arch, no issues until I installed BODHI along with other
two.

During Bodhi installation I got the prompt that I need to UNMOUNT the
partitions. Now none of my partitions were mounted, as far as I can
tell. I ignored the Warning and continued with Bodhi installation.

After the install I went back to Ubuntu to update grub... and guess
what? The Grub Update did not find Arch install. It found Bodhi alright.
Then later I had to MOUNT Arch partition and run update-grub, only then
did the GRUB found Arch Install.

I am not a technichal guy so I have described my issue with GRUB as a
layman. If launchpad needs any data from my Desktop I am willing to
help.

I hope this gives some pointers towards resolving the Grub issue.

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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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