Description of problem: I mount my /tmp and /var/tmp file systems with tempfs using these lines in /etc/fstab: tmpfs /tmp tmpfs defaults 0 0 tmpfs /var/tmp tmpfs defaults 0 0 Anaconda fails with an "already in tree" uncaught exception when attempting to upgrade from F10 to F11 using the F11 DVD.
Please attach /tmp/anacdump.txt (if it exists) and /tmp/anaconda.log, as well as listing the steps to reproduce this error.
I remembered incorrectly. The failure is while attempting to mount the installed system using the rescue boot option of the F11 DVD. I did this in an attempt to fix a can't boot problem after upgrading to F11 on a RAID1 /boot partition. I had to grub-install /dev/md0 to recover the upgraded system. (See Bug #505966 - https://bugzilla.redhat.com/show_bug.cgi?id=505966 .) This failure leaves the F11 DVD system in a state that I cannot log into the machine. The stack trace is left on the monitor, though. That gave me the clue to comment out my two tempfs lines in /etc/fstab . I guess that I unfairly implicated anaconda. I don't know what component would be appropriate, though. The only documentation I can think of providing is a photograph of the console monitor at the point of failure. It should be easy to reproduce, though. Just add at least one of the lines mentioned in the description above and try to mount the installed system with the rescue option of the F11 DVD. Sorry for the confusion.
Should be fixed in anaconda-12.4-1. Please reopen if you see the same behavior in that version or later.