Red Hat Bugzilla – Bug 826335
Preupgrade fully updated F16->F17; Unhandled exception error upon reboot
Last modified: 2013-07-31 20:41:21 EDT
Description of problem:
Using preupgrade to upgrade from a fully updated F16 to F17 causes an "Unhandled exception error" when scanning the partitions.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Invoke preupgrade from a fully updated F16 system
2. When prompted to reboot do so.
3. Boot into upgrade grub entry
Unhandled exception error
Fresh install from live CD worked without issues using same partition table.
Is there a fix for the problem ? I can't use Live CD because the new install will erase all my data.
I had the same problem. I used preupgrade on a fully updated fedora 16 system and ran into the boot partition too small problem. I continued with preupgrade to the reboot prompt. Preupgrade failed to reboot (a documented bug related to the boot partition too small). I then went to the full X86_64 Fedora install disk to update Fedora16. In scanning the partitions I got the unhandled exception problem. I eventually found a fix for the failure to reboot from preupgrade problem. I deleted "LiveOS/squashfs.img" from the end of a line in the grub menu. I ran preupgrade again and this time the reboot worked. The file squashfs.img was downloaded as part of the reboot. The reboot continued and began scanning partitions. Then I got an unhandled exception.
I managed to get past the unhandled exception by reading more of the debugging information. I had two iso files mounted at boot time as simulated CDs and that was apparently what caused the unhandled exception. I commented out those lines in /etc/fstab and then restarted the installation upgrade from the full DVD. This completed normally with an operable system that has its own problems.
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