Without sudo I received the reported error, tried it later with sudo and it worked:
~$ /usr/bin/update-manager extracting '/tmp/tmpaW6m_m/gutsy.tar.gz' Traceback (most recent call last): File "/usr/lib/python2.5/site-packages/UpdateManager/UpdateManager.py", line 914, in on_button_dist_upgrade_clicked fetcher.run() File "/usr/lib/python2.5/site-packages/UpdateManager/Core/DistUpgradeFetcherCore.py", line 160, in run if not self.extractDistUpgrader(): File "/usr/lib/python2.5/site-packages/UpdateManager/Core/DistUpgradeFetcherCore.py", line 98, in extractDistUpgrader tar = tarfile.open(self.tmpdir+"/"+os.path.basename(self.uri),"r") File "/usr/lib/python2.5/tarfile.py", line 1144, in open raise ReadError("file could not be opened successfully") tarfile.ReadError: file could not be opened successfully With sudo it ran fine: ~$ sudo /usr/bin/update-manager Password: warning: could not initiate dbus extracting '/tmp/tmpzDYoAd/gutsy.tar.gz' authenticate '/tmp/tmpzDYoAd/gutsy.tar.gz' against '/tmp/tmpzDYoAd/gutsy.tar.gz.gpg' could not send the dbus Inhibit signal: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. -- [apport] update-manager crashed with ReadError in open() https://bugs.launchpad.net/bugs/177966 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs