Bug#599203: os-prober: Causes Data Corruption on a SAN setup; Mounts SAN volumes that are already mounted on a different host.
Quoting Aleksandr Levchuk (email@example.com):
> Dear Christian,
> So will this bug be raised to RC severity?
My previous comment still stands. I'd like people more involved in
grub to comment.
> >> Sigh. From what I've witnessed over the years, os-prober has always
> >> been designed as a component of Debian Installer, used to properly
> >> setup boot loaders' menus at install time.
> >> Apparently, recent evolutions turned it to be installed on running
> >> systems *because* grub recommends it.
> > well, Colin Watson is about to say that he disagrees with that
> > analysis..:-)
> > Let's have him elaborate...