[SOLVED] Kernel Panic problem

Hello,

I have been running Ubuntu with no problems for a while now. Earlier today, I began to download some updates. When I came back to the computer, there was a prompt to restart, but also an error message. I didn't catch the error message until I had clicked the restart button.

Now, when I try to access Ubuntu from the dual-boot menu (I run Vista as well), I keep getting the following error message.

[3.190034] Kernel panic - not syncing: VFS: Unable to mount root fs on unkown-block (8,2).

I tried safe mode, and I got the same error message. Vista runs normally.

Any ideas?

EDIT: I'm sorry if this is in the wrong place, I wasn't sure where to ask.

Boot up from Ubuntu LiveCD and execute fsck command on / partition of Ubuntu.

Thanks, that worked but I began to have other problems, eventually re-installed.