I believe I have fallen victim to a bad ext4 filesystem bug. I woke up this morning to boot my computer and realized it stalled with a bunch of graphical errors. It reported an I/O error on sda1 repeatedly.
This is a 500GB Scorpio blue HDD (about a month old) that has been running perfectly until shortly after installing Ubuntu 12.10 from my disk (fresh install). I first tried to fix the complaint of a bad or corrupt grub configuration
from the recovery menu but it didn't do anything. So then I popped in my Ubuntu ready installer (USB flashdrive) and I was unable to format the filesystem, it had an output of asking drive if cache failed
or something and eventually said that the filesystem couldn't be created.
I went ahead and popped in my Windows 7 DVD and it formatted it without any issues, and I am now standing on Ubuntu 12.04 in working order.
NOTE: Ubuntu 12.10 had all of its updates installed and had various apps like VLC, SMPlayer, WINE, and various other typical things. I know this isn't exactly a "Question" but launchpad is a bit confusing to use and never seems to get appointed correctly for me. So I'd rather seek out to a community I know is active and alert.