Ubuntu
ubiquity package

  1. Bug #430141
  2. Comment #8

Comment 8 for bug 430141

Revision history for this message
DBF (fasnacht) wrote : Re: No second OS is shown up in grub2

For me, after upgrading to grub2 (package "grub-pc" instead of "grub"),
the package "os-prober" was not installed, and thus /etc/grub.d/30_os-prober
immediately aborted instead of detecting the other operating systems.

# apt-get install os-prober
# update-grub

should solve this (at least did it for me).

In case you have no grub menu at all, edit
/etc/default/grub, comment out the line GRUB_HIDDEN_TIMEOUT=0
and run update-grub ...