Today I upgraded my ubuntu 14.10 to 15.04 but during installation the system hung up and I was forced into a hardware reset. Now after startup, right after I enter my password, the screen flickers. I used a few shell commands in recovery mode in the hope of completing an upgrade:
mount -0 remount, rw / mount --all
dpkg --configure -a
apt-get -f install
apt-get update
apt-get dist-upgrade
apt-get autoremove
apt-get install --reinstall ubuntu-desktop
update-grub
apt-get clean
and then rebooted.
how to recover the system/complete the incomplete setup update?