MORE DETAILS! ============ As a matter of interest, I installed a fresh copy of Edgy onto a spare machine, upgraded with all the current packages (147 from memory), installed gksu and tried again, following the "Upgrading using the alternate CD/DVD" method outlined in http://www.ubuntu.com/getubuntu/upgrading. The result was the same. (Specific details below.) Note that this attempt was on a virgin install (and upgrade) of 6.10 so there IS a bug somewhere. Let me know if you'd like me to do some more testing, etc. (Incidentally, I was able to upgrade my main system by doing a manual installation using the Alternate CD Rom as a source. The process is outlined at https://help.ubuntu.com/community/FeistyUpgradesManual.) Here are the details of an attempting to follow "Upgrading using the alternate CD/DVD" on a freshly installed/updated version of 6.10: 1. Execute command: ================== sudo gksu "sh /cdrom/cdromupgrade" 2. Console reports: ================ can't load DistUpgradeViewGtk (No module named pygtk) 3: "Include latest updates from the Internet?" message box. (Which incidentally is WAY too wide for a 1024x768 screen!) ================================================ - Selected "No". (see below for the result of selecting "YES") 4. Distribution Upgrade GUI starts. ============================= - "Preparing the upgrade" gets a green tick. - "Modifying the software channels" marked. - "Upgrader Crashed" window opens with the following details: Traceback (most recent call last): File "/tmp/tmp.chOGj18636/DistUpgradeViewKDE.py", line 72, in update self.progressbar.setProgress(percent) AttributeError: KDECdromProgressAdapter instance has no attribute 'progressbar' /var/log/dist-upgrade/apt.log ========================== updateStatus: Checking package manager updateStatus: Updating repository information WARNING: Failed to read mirror file Error in function update /var/log/dist-upgrade/main.log ========================== 2007-04-22 14:01:43,179 INFO release-upgrader version '0.59.20' started 2007-04-22 14:01:43,228 WARNING can't import view 'DistUpgradeViewGtk' (No module named pygtk) 2007-04-22 14:01:52,480 DEBUG lsb-release: 'edgy' 2007-04-22 14:01:52,481 DEBUG _pythonSymlinkCheck run 2007-04-22 14:01:57,163 DEBUG useNetwork: 'False' (selected by user) 2007-04-22 14:01:57,164 DEBUG doUpdate() will not use the network because self.useNetwork==false 2007-04-22 14:01:58,465 DEBUG Foreign: 2007-04-22 14:01:58,466 DEBUG Obsolete: 2007-04-22 14:01:58,563 DEBUG updateSourcesList() 2007-04-22 14:01:58,757 DEBUG rewriteSourcesList() 2007-04-22 14:01:58,763 DEBUG examining: 'deb http://nz.archive.ubuntu.com/ubuntu/ edgy main restricted' 2007-04-22 14:01:58,764 DEBUG entry 'deb http://nz.archive.ubuntu.com/ubuntu/ feisty main restricted' updated to new dist 2007-04-22 14:01:58,764 DEBUG examining: 'deb-src http://nz.archive.ubuntu.com/ubuntu/ edgy main restricted' 2007-04-22 14:01:58,765 DEBUG entry 'deb-src http://nz.archive.ubuntu.com/ubuntu/ feisty main restricted' updated to new dist 2007-04-22 14:01:58,765 DEBUG examining: 'deb http://nz.archive.ubuntu.com/ubuntu/ edgy-updates main restricted' 2007-04-22 14:01:58,766 DEBUG entry 'deb http://nz.archive.ubuntu.com/ubuntu/ feisty-updates main restricted' updated to new dist 2007-04-22 14:01:58,766 DEBUG examining: 'deb-src http://nz.archive.ubuntu.com/ubuntu/ edgy-updates main restricted' 2007-04-22 14:01:58,767 DEBUG entry 'deb-src http://nz.archive.ubuntu.com/ubuntu/ feisty-updates main restricted' updated to new dist 2007-04-22 14:01:58,767 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu edgy-security main restricted' 2007-04-22 14:01:58,768 DEBUG entry 'deb http://security.ubuntu.com/ubuntu feisty-security main restricted' updated to new dist 2007-04-22 14:01:58,768 DEBUG examining: 'deb-src http://security.ubuntu.com/ubuntu edgy-security main restricted' 2007-04-22 14:01:58,769 DEBUG entry 'deb-src http://security.ubuntu.com/ubuntu feisty-security main restricted' updated to new dist 2007-04-22 14:01:58,790 DEBUG AptCdrom.add() called with '/cdrom' 2007-04-22 14:01:58,826 ERROR Exception in KDE frontend (invoking crash handler): 2007-04-22 14:01:58,827 ERROR Traceback (most recent call last): File "/tmp/tmp.chOGj18636/DistUpgradeViewKDE.py", line 72, in update self.progressbar.setProgress(percent) AttributeError: KDECdromProgressAdapter instance has no attribute 'progressbar' ==================================================================================================== Repeat procedure, this time selecting YES: 3: "Include latest updates from the Internet?" message box. (Which incidentally is WAY too wide for a 1024x768 screen!) ================================================ - Selected "No". (see below for the result of selecting "YES") 4. Distribution Upgrade GUI starts. ============================= - "Preparing the upgrade" gets a green tick. - "Modifying the software channels" marked. - "Upgrader Crashed" window opens with the following details: Traceback (most recent call last): File "/tmp/tmp.UMkdl18893/feisty", line 56, in ? app.run() File "/tmp/tmp.UMkdl18893/DistUpgradeControler.py", line 1025, in run self.fullUpgrade() File "/tmp/tmp.UMkdl18893/DistUpgradeControler.py", line 935, in fullUpgrade if not self.prepare(): File "/tmp/tmp.UMkdl18893/DistUpgradeControler.py", line 289, in prepare self._tryUpdateSelf() File "/tmp/tmp.UMkdl18893/DistUpgradeControler.py", line 200, in _tryUpdateSelf from DistUpgradeFetcherSelf import DistUpgradeFetcherSelf File "/tmp/tmp.UMkdl18893/DistUpgradeFetcherSelf.py", line 2, in ? from DistUpgradeFetcherCore import DistUpgradeFetcherCore File "/tmp/tmp.UMkdl18893/DistUpgradeFetcherCore.py", line 30, in ? import GnuPGInterface ImportError: No module named GnuPGInterface /var/log/dist-upgrade/apt.log ========================== updateStatus: Checking package manager updateStatus: Updating repository information WARNING: Failed to read mirror file Error in function update updateStatus: Checking package manager updateStatus: Updating repository information WARNING: Failed to read mirror file Error in function update updateStatus: Checking package manager updateStatus: Updating repository information WARNING: Failed to read mirror file Error in function update updateStatus: Checking package manage /var/log/dist-upgrade/main.log ========================== 2007-04-22 14:22:49,558 INFO release-upgrader version '0.59.20' started 2007-04-22 14:22:49,618 WARNING can't import view 'DistUpgradeViewGtk' (No module named pygtk) 2007-04-22 14:22:55,738 DEBUG lsb-release: 'edgy' 2007-04-22 14:22:55,739 DEBUG _pythonSymlinkCheck run 2007-04-22 14:22:59,312 DEBUG useNetwork: 'True' (selected by user) 2007-04-22 14:22:59,936 ERROR Exception in KDE frontend (invoking crash handler): 2007-04-22 14:22:59,938 ERROR Traceback (most recent call last): File "/tmp/tmp.UMkdl18893/feisty", line 56, in ? app.run() File "/tmp/tmp.UMkdl18893/DistUpgradeControler.py", line 1025, in run self.fullUpgrade() File "/tmp/tmp.UMkdl18893/DistUpgradeControler.py", line 935, in fullUpgrade if not self.prepare(): File "/tmp/tmp.UMkdl18893/DistUpgradeControler.py", line 289, in prepare self._tryUpdateSelf() File "/tmp/tmp.UMkdl18893/DistUpgradeControler.py", line 200, in _tryUpdateSelf from DistUpgradeFetcherSelf import DistUpgradeFetcherSelf File "/tmp/tmp.UMkdl18893/DistUpgradeFetcherSelf.py", line 2, in ? from DistUpgradeFetcherCore import DistUpgradeFetcherCore File "/tmp/tmp.UMkdl18893/DistUpgradeFetcherCore.py", line 30, in ? import GnuPGInterface ImportError: No module named GnuPGInterface