"...I don't know why update manage put logs of april under the folder of yesterday..."
I think I can elaborate on that: As far as I have seen, the upgrade to a new version cleans up the /var/log/dist-upgrade/ directory by putting all files that are there from a previous upgrade into a subdirectory with a name of the current date and time. So in your case the files from November 2008 have been put into the 20090423-1810 directory the files from April 2009 are in the 20091104-2146 directory ... the files from April and May 2010 are in the 20110220-2200 directory (a bit strange to have files from two dates there!) the files from the (probably failed) first attempt at 20 Feb 2011 22:00 are in the 20110220-2211 directory and finally the files from the latest upgrade attempt at 20 Feb 2011 22:11 are in the dist-upgrade directory itself. But as I wrote above the contents of the files will not show anything that helps with the (assumed) kernel failure. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/722334 Title: system broken during ugrade from lucid to maverick -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs