14.04 only works through recovery though badly

Question

since I upgraded from 12.04 to 14.04 I can't boot in any other mode than through recovery mode. If I don't, the mouse hardly works then freezes, same for keyboard. Still, after using the recovery mode my PC works but operating any function is very slow and it sometimes freezes. I had a lot of freezing incidents when still using the 12.04, so when the problem I describe above came up after the upgrade, I decided to wipe my hard drive clean with DBAN to make sure nothing would be carried over and then downloaded 14.04 from a USB drive... with the same results. The dpkg option on the recovery menu highlighted a series of errors that I'll be happy to post if anyone asks. I also got a few pop-ups early after the download warning me about problems with programs such as compiz, webapp-container or aptdaemon, among other glitches. If you could let me know how I should handle this, I'll be very grateful indeed! Fred

Answer 1

Some quick hints:

1. To check the memory, boot from the install CD and select memtest (see here for details)
2. To check the disks you can use Disks, the Gnome utility. More about all this in this article.

Hope this helps...