As you didn't do things to /dev/sdb1, but operated on the mapper device, just continue normally with attempting recovery of the wiped file system. Writing to the mapper device does not impact dm-crypt's operation in anyway (excepting bugs). Just follow 'normal' procedure while working on the mapper-device (/mapper/backup) - all may not be lost - especially if testdisk still kinds-of finds stuff. Don't touch /dev/sdb1! Otoh, I am not sure how recoverable an e3-fs is. Good luck! And: Don't drink and be root ;) On Sat, 4 Sep 2010 08:11:29 -0400 machiner <machiner@xxxxxxxxx> wrote: > > Hello, > > I reinstalled Debian a few weeks ago (dselect). Last night I plugged my backup drive > in that I may resume normal backup procedures. In a fit of stupid, I probably lost > my backup data forever. Here is what I did. > > Upon plugging the USB drive in I was greeted with a small dialog box that informed > me that /dev/sdb1 was encrypted and that I needed to input the password. I did. > > Then... > > 1 - # cryptsetup luksOpen /dev/sdb1 backup > 2 - # mkfs.ext3 /dev/mapper/backup > 3 - # mount /dev/mapper/backup /mnt/backup > > Of course when I went to look upon my existing backups the drive was empty. Of > course I overwrote the file system. I did a number of things wrong....Large > quantities of alcohol were involved. > > I tried testdisk with varying failures. Stuff was seen, ish, but it ended there. P > to list files aborted testdisk. Ran it looking for Intel partitions and also for > 'none'. > > I see 3 instances of the drive when I run testdisk with no arguments. > > > Disk /dev/sdb - 320 GB / 298 GiB - WDC WD32 00BEVT-60ZCT0 > Disk /dev/mapper/backup - 320 GB / 298 GiB > Disk /dev/dm-0 - 320 GB / 298 GiB > > > I looked around the mailing list and saw things like headers and salts and figured I > was doomed. But I'm here anyway asking if there's anything I can do to attempt to > retrieve my existing backups. > > Thanks. _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
