Comment 8 for bug 682337

i had ubuntu 10.04
the lastest software installed was compiz-extra, suddenly when i powered on the system appeared the next message: error: not such device: /ubuntu/disks/root.disk
grub>

i was trying to recover the system, but i discovered that rook.disk and swap.disk did not exist in folder "c:\ubuntu", the thing is why those files dissapeared misteriously, if the last system executed was ubuntu .............