Ubuntu – After Upgrading to 12.04 I can’t get to the login screen

12.04boot failureupstart

I cannot go pass the black screen and the following shows up on my screen after upgrading and rebooting with the Ubuntu update manager from 11.10 to 12.04:

ata_id [27]: HDIO_GET_IDENTITY failed for '/dev/sdb/': Invalid argument

*stopping save kernel messages

Setting up X font server socket directory /tmp/.font-unix...done.

Starting X font server:xfs.

Rather than invoking init scripts through /etc/init.d, use the service(8) utility, e.g. service S25 bluetooth start inid: Unkown job: S25 bluetooth

Since the script you are attempting to invoke has been converted to an upstart job, you may also use the start(8) utility, e.g. start S25bluetooth

*PulseAudio configured for per-user sessions

Saned disabled; edit /etc/default/saned

*Checking battery state... [OK]

After this nothing happens anymore.

I even tried booting from different linux versions and also from recovery mode. I've tried repairing the packages and even updating the grub loader.

*I have Ubuntu in an external hard drive but there were never any problems with booting before the upgrade.

*Also, it seems to be something to do with invoking init scripts rather than other problems. (If u think it isn't, still do try to help me solve the problem.)

Please help!

Best Answer

Press CTRL+ALT+F1 and reinstall your graphic card drivers from the command line.

If you're using NVidia, it's most likely sudo apt-get purge nvidia-current and sudo apt-get install nvidia-current.
After that, run sudo reboot.

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