Comment 3 for bug 700831

I did what apt-get suggests:

first:
sudo apt-get update

sudo dpkg --configure -a

sudo apt-get install -f (this fails):

dpkg: error while cleaning up:
 unable to restore backup version of `/usr/src/linux-headers-2.6.35-23-generic/arch/x86/kernel/.asm-offsets.s.cmd': Read-only file system
...
touch: cannot touch `/var/lib/update-notifier/dpkg-run-stamp': Read-only file system
sh: cannot create /var/lib/update-notifier/updates-available: Read-only file system
E: Problem executing scripts DPkg::Post-Invoke 'if [ -d /var/lib/update-notifier ]; then touch /var/lib/update-notifier/dpkg-run-stamp; fi; if [ -e /var/lib/update-notifier/updates-available ]; then echo > /var/lib/update-notifier/updates-available; fi '
E: Sub-process returned an error code
E: Sub-process /usr/bin/dpkg returned an error code (2)