You will need to boot up an operating system (
obviously) to fix a file system on a drive, and in this particular case, it has to be a linux system (or any other capable of dealing with the ext3 filesystem, which Ubuntu uses by default. You cannot use a windows system (not without some serious fiddling, anyway) to repair a broken ext3 filesystem.
On a linux (or some other OS, see above) do the following:
Or, as I said above, you can use something like
palimpsest to format the drive, although all data would be irrecoverably lost. You could just do
Code:
mkfs.ext3 /dev/<device>
as well to achieve the same.
These are your only two options. Fix it or mkfs it.