os-prober parses menu.lst incorrectly with '=' instead of space after 'title'

[Peter Husen]

Binary package hint: grub2

update-grub correctly found out that I have a Gentoo installation on another partition, but it created a menu entry with the correct initrd, but using memtest86.bin as the kernel. I believe this is due to the script /usr/lib/linux-boot-probes/mounted/40grub only recognizing a title-line, if 'title' is followed by a space, whereas my menu.lst had lines like 'title=Gentoo Linux 2.6.27', so the constructed entry ended up being a mixture of menu entries.

$ lsb_release -rd
Description: Ubuntu 9.04
Release: 9.04

$ LANG=C apt-cache policy grub-pc
grub-pc:
  Installed: 1.96+20090611-1ubuntu2
  Candidate: 1.96+20090611-1ubuntu2
  [...]

[Durand D'souza (durand1)]

I don't think os-prober uses menu.lst at all. Thats for grub 1 only. I would like to know how to add gentoo to grub2's autodetection because its being found but for some reason, not added to grub.cfg.