Hi folks!
Two days ago I decided to upgrade my workstation to Trisquel 7.0 in order to
continue my work on the Trisquel Enhancement Project. The upgrading process
had some minor issues but nothing important have happened until just before
its completion. The configuration of grub-pc failed to install GRUB on
/dev/dm-1, but since it happens to me regularly, I chose to continue the
installation.
I tried to reinstall GRUB from chroot using a Trisquel 7.0 64-bit Live DVD
which usually works for me except this time. With some investigation I have
learnt that there was a transition from dmraid to mdadm upstream which
presumably caused this problem as my laptop uses an Intel Matrix RAID array
(aka fakeraid in RAID 0 configuration). I tried several ways to fix this
issue including downgrading GRUB, removing dmraid/mdadm, and editing
/etc/fstab (everything is back to normal now!) but nothing worked so far and
since I have important data and configurations on different partitions, I
don't want to mess up my computer.
Here's the Terminal output with some information to begin with:
trisquel@trisquel:~$ sudo mount /dev/md126p6 /mnt
trisquel@trisquel:~$ sudo mount -B /dev /mnt/dev
trisquel@trisquel:~$ sudo mount -B /proc /mnt/proc
trisquel@trisquel:~$ sudo mount -B /sys /mnt/sys
trisquel@trisquel:~$ sudo chroot /mnt
root@trisquel:/# dpkg-reconfigure grub-pc
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.13.0-39-generic
Found initrd image: /boot/initrd.img-3.13.0-39-generic
Found linux image: /boot/vmlinuz-3.5.0-54-generic
Found initrd image: /boot/initrd.img-3.5.0-54-generic
No volume groups found
Found Windows Recovery Environment (loader) on /dev/md126p1
Found Windows 7 (loader) on /dev/md126p2
done
root@trisquel:/# grub-install /dev/sda
Installing for i386-pc platform.
grub-install: warning: attempt to read or write outside of disk
`hostdisk//dev/sda'.
grub-install: error: embedding is not possible, but this is required for
cross-disk install.
root@trisquel:/# grub-install /dev/sdb
Installing for i386-pc platform.
grub-install: error: unable to identify a filesystem in hostdisk//dev/sdb;
safety check can't be performed.
root@trisquel:/# grub-install /dev/mapper/isw_cbghfjicjf_Volume0
Installing for i386-pc platform.
grub-install: error: cannot find a GRUB drive for
/dev/mapper/isw_cbghfjicjf_Volume0. Check your device.map.
root@trisquel:/# mdadm --assemble --scan
root@trisquel:/# mdadm --detail-platform
Platform : Intel(R) Matrix Storage Manager
Version : 9.5.0.1037
RAID Levels : raid0
Chunk Sizes : 4k 8k 16k 32k 64k 128k
2TB volumes : supported
2TB disks : not supported
Max Disks : 7
Max Volumes : 2 per array, 4 per controller
I/O Controller : /sys/devices/pci:00/:00:1f.2 (SATA)
root@trisquel:/# blkid
/dev/md126p1: LABEL=Recovery UUID=9A5A15B25A158BDF TYPE=ntfs
/dev/md126p2: LABEL=System Reserved UUID=36EC4F0CEC4EC639 TYPE=ntfs
/dev/md126p3: LABEL=Windows UUID=01CC6417DE53A1B0 TYPE=ntfs
/dev/md126p7: UUID=adc1aaf9-f89b-4944-bd80-26e2124d49ea TYPE=swap
/dev/md126p8: UUID=7ee49041-4fd1-47f4-a2dd-c6542e45ee94 TYPE=xfs
/dev/loop0: TYPE=squashfs
/dev/sr0: LABEL=trisquel 7.0 amd64 TYPE=iso9660
/dev/sdb: TYPE=isw_raid_member
/dev/sdc: TYPE=isw_raid_member
/dev/sdd: TYPE=isw_raid_member
/dev/md126p5: LABEL=Data UUID=01CC6422D8D560B0 TYPE=ntfs
/dev/md126p6: UUID=13f3be54-44d5-469e-8331-a498ee451b04 TYPE=ext4
root@trisquel:/# cat /run/mdadm/map
md127 /md0/0 546fe38b:d83a118a:07739669:3d0edc37 /dev/md/imsm0
md126 /md0/0 546fe38b:d83a118a:07739669:3d0edc37 /dev/md/Volume0_0
root@trisquel:/# cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# file system mount point typeoptions
dumppass
proc/proc proc
nodev,noexec,nosuid 0 0
/dev/mapper/isw_cbghfjicjf_Volume0p3/mnt/windowsntfsdefaults
0 0
/dev/mapper/isw_cbghfjicjf_Volume0p5/mnt/data ntfsdefaults
0 0
/dev/mapper/isw_cbghfjicjf_Volume0p6/ ext4
relatime,errors=remount-ro 0 1
/dev/mapper/isw_cbghfjicjf_Volume0p7noneswapsw
0 0
/dev/mapper/isw_cbghfjicjf_Volume0p8/home xfs relatime
0 2
root@trisquel:/# cat /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DEFAULT=0
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2
