A footnote to this. I did mdadm --manage /dev/md0 --add /dev/sda1
and mdadm --manage /dev/md0 --add /dev/sdb1, and now the output from update
grub is different:
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.2.0-4-amd64
Found initrd image: /boot/initrd.img-3.2.0-4-amd64
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
/usr/sbin/grub-probe: error: disk missing.
Found linux image: /boot/vmlinuz-2.6.32-5-amd64
Found initrd image: /boot/initrd.img-2.6.32-5-amd64
Found linux image: /boot/vmlinuz-2.6.32-trunk-amd64
Found initrd image: /boot/initrd.img-2.6.32-trunk-amd64
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
Found Debian GNU/Linux (7.0) on /dev/sda1
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
Found Debian GNU/Linux (7.2) on /dev/sdb1
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
Found Debian GNU/Linux (7.4) on /dev/sdc1
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
Found Debian GNU/Linux (7.4) on /dev/sdd1
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: disk missing.
error: disk missing.
done
On Sun, Feb 9, 2014 at 8:32 AM, Ari Epstein aepstein...@gmail.com wrote:
I'm having peculiar difficulties getting grub to boot from a RAID1 md.
The machine has four drives, and the md (which contains / as well as
/boot) is on sdc1 and sdd1. sda1 and sdb1 were once configured as spares
though at the moment they are not connected to the raid at all. The
grub.cfg has the correct UUID for the md.
Today I upgraded to the latest 7.4 kernel (3.2.54-2) and rebooted. The
system appeared to boot correctly, but I noticed the kernel is the same one
that was running before (3.2.41-2).
The output from update-grub suggests it is detecting older installations
of debian, which I suspect are in sda1 and sdb1. I am guessing that
somehow grub is loading from those unused spare partitions instead of the
ones in active use, but could use some help confirming this/understanding
how I can fix it. Any ideas?
Here's the update-grub output:
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
error: superfluous RAID member (2 found).
Generating
