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

[Redalert Commander]

Hi,

(not a grub maintainer)

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.

I forgot that last week and had to use a live image and chroot to fix it.
For some reason my system refuses to boot if I set the SSD as first
boot device in the BIOS, hence the rather unusual setup.
It appears to me that grub will fail to upgrade cleanly as soon as the
device with /boot isn't the primary drive in the system. Which is also
probably the case for your RAID1 setup.

Regards,
Steven