** Branch linked: lp:ubuntu/trusty-proposed/duplicity -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to duplicity in Ubuntu. https://bugs.launchpad.net/bugs/1252484
Title: Possible data loss when restarting in the middle of a deleted file Status in Duplicity - Bandwidth Efficient Encrypted Backup: Fix Committed Status in “duplicity” package in Ubuntu: New Status in “duplicity” source package in Lucid: New Status in “duplicity” source package in Precise: New Status in “duplicity” source package in Quantal: New Status in “duplicity” source package in Raring: New Status in “duplicity” source package in Saucy: New Bug description: This was recently fixed in duplicity trunk. But I'm filing a bug for paperwork purposes and for Ubuntu SRUs. [Impact] When restarting a backup, duplicity may accidentally skip the first 65k chunk of one of the source files. This means that when it is restored, it will be incomplete/corrupted, resulting in data loss. [Test Case] mkdir /tmp/source dd if=/dev/urandom of=/tmp/source/bigfile bs=1024 count=5000 # This next command will intentionally fail after the second volume! duplicity --no-encryption full /tmp/source file:///tmp/backup --vol 1 --fail 2 mv /tmp/source/bigfile /tmp/source/newfile duplicity --no-encryption full /tmp/source file:///tmp/backup duplicity --no-encryption restore file:///tmp/backup /tmp/restore # This next line will say the files differ if the bug is present diff /tmp/source/newfile /tmp/restore/newfile [Regression Potential] It's a relatively small patch, only affecting the specific case of restarting a backup when the file we were in the middle of is no longer there. I'd say minor regression potential. To manage notifications about this bug go to: https://bugs.launchpad.net/duplicity/+bug/1252484/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp