I had a power failure while upgrading from 13.10 to 14.04 and and ended up with a couple of problems. First I ended up the "system is running in low-graphics mode" error described here and managed to fix it following the described steps. However, currently when I start ubuntu in new version (if I select previous versions on the grub menu I'm fine) I get a filesystem check or mount error
Filesystem check or mount failed. A maintenance shell will now be
started. CONTROL-D will terminate this shell and continue booting
after re-trying filesystems. Any further errors will be ignored
root@ubuntu-computername:~#
similar to the problem described here.
however I am unable to do
sudo mount -o remount,rw /
as recommended on the second link. I get this error message:
cannot remount block device /dev/loop0 read-write, is write-protected
any idea how to fix this?
update: Ok, so I ended up giving up and starting fresh but I want to post what little I have learned in case someone else has a similar problem:
there were a few system files and directories that were for some reason empty or damaged, namelly fstab, mstab and \tmp.
and the system was not able to to umount /dev/loop0.
I'm sorry I can't remember much more details of the top of my head, I tried to recover the system with the help of a friend and to be honest, before yesterday I didn't even know fstab and mstab existed.
