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Thanks Gordon. That's roughly what I thought. There isn't much on the drive of value that I don't have elsewhere, other than backups that haven't worked, so not a problem in binning it. I'm using NTFS purely because that is what it was formatted as originally. I tried re-formatting to ext3 and couldn't work out how to mount it so reformatted back using a windows machine. Restore was working with a previous version of sbackup - stupidly I assumed that if a beta version worked then a release version would too, but I'll test properly next time!!! So the next question is, given that I probably only need to back up ~50Gb, would I be better paying $100 / year for 100Gb off-site back-up with Spideroak? Phil On 19/07/13 09:52, Gordon Henderson wrote: > On Fri, 19 Jul 2013, Philip Whateley wrote: > >> I have a 1TB external USB drive that I use for backups - using sbackup >> >> I have just found that a file I overwrote cannot be restored from backup >> - not critical, I can live without the file, but on testing none of the >> files can be restored!! >> >> I have been playing with back in time as an alternative: first time it >> failed over permissions on some files which I changed (or excluded from >> the backup) >> >> It has now failed again (log below) > >> >> Any ideas? > > It's corrupt, has failed, dead, broken, a usb drive no-more. > > I'd try this: > > Unplug it. > > Coult to 10 & plug it back in again. Also make sure it's powered > properly - preferably via an external PSU. > > Run badblocks on it: > > badblocks -c 256 -s /dev/sdb > > if that reports errors, then it's probably toast. You can look at > using ddrescue to recover it and/or other tools, but you'll need > another 1TB drive to ddrescure it onto. Depending on how toasty is it, > you may be able to mount it read-only and recover some data, but > really, bin it. > > (After ruling out USB errors, cabling, and the other obvious stuff) > > Also - why are you using ntfs? If you're backing up Linux stuff, use a > Linux native format - ext3 or ext4 ... > > And test that you can restore your backups before having to rely on it.. > > Gordon > -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq