This morning I upgraded my Ubuntu 11.10 in my HP laptop to 12.04LTS using the update manager. All went smooth but during installation of the new packages some errors were reported. But the update manager continued with the installation and finally the system restarted. But when the login screen came up I knew things had gone seriously wrong somehow – icons were not displayed, gui was jagged, i could not control the mouse pointer and when i logged in things stayed the same. I could not do anything at all except do a hard reboot and hope it will rectify itself in the next boot. But I had no such luck and I was stuck.

 

So I googled to find a solution but almost all sites instructed to do a fresh install of 12.04 after backing up the files. At least I was not the only one facing problems with the upgrade from 11.10. But I decided to try and fix it before going for the fresh install and luckily it worked for me. I cannot guarantee that it will work for you, but this is what I did:

1) booted in to the recovery mode of the previous kernel version

2) set up networking first from the recovery menu

3) then i chose to repair broken packages using dpkg

then it started installing stuff (that i think failed during the upgrade) and finally after restart I had a working Ubuntu 12.04LTS :)

 

But my ethernet driver was not working. Ubuntu has still not fixed the r8168 driver issue and the old switchmods script did not work. Found the new version of the script after a bit of googling. Here it is : https://gist.github.com/2390823

 

Just download and extract the archive and execute the switchmods script as root.

 

Hope this helps.

Bye

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