Bug#709808: [grub-pc] boot failure after updaing

[Colin Watson]

On Tue, May 28, 2013 at 10:53:18AM +0200, Redalert Commander wrote:
> I have the same issue, however it is not just after updating the
> latest version, but pretty much every grub update that breaks.
> 
> The issue is in either grub failing to install to the MBR on some
> drives or grub skipping that step altogether.
> I have an 8 disk system, the first one is a HDD for /home, this is the
> one my BIOS points to for booting. The second is an SSD with / and
> /boot (same partition). the other 6 are HDDs for data and grub is
> unable to install the bootloader there (not really an issue since they
> aren't used for booting).
> I think grub is failing on those 6 drives.
> Whenever there is a grub update I need to manually execute
> "grub-install /dev/sda /dev/sdd" to make the system bootable.

sudo dpkg-reconfigure grub-pc

... and configure it properly.  Presumably you switched disks at some
point in the past and didn't tell the GRUB packaging so that it could
sort this out; in general this does work if done properly.

-- 
Colin Watson                                       [cjwatson at debian.org]