Absolute same issue here, if called from cron. When I call unattended- upgrade manually (directly logged in as root - not via sudo) no issues at all. Everything that's claimed "not found" is there in reality! root's PATH contains the needed paths. No I added PATH to root's crontab explicitly - will come back when this leads me to successful automatic unattended-upgrades...
** Attachment added: "Output of call via cron" https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1004792/+attachment/4106212/+files/unattended-upgrades-dpkg_2014-05-06_06-31-46.867189.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1004792 Title: unattended-upgrade crashed with IOError: [Errno 9] Bad file descriptor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1004792/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs