Red Hat Bugzilla – Bug 830620
preupgrade reboot cannot find root on btrfs subvolume
Last modified: 2013-07-31 20:43:12 EDT
Description of problem: I have Fedora 16 installed with a small /boot ext4 partition, and the rest of the system on a btrfs pool, with / on one subvolume and /home on another subvolume. Trying to upgrade to Fedora 17 using preupgrade. Upon reboot, a message is displayed that "The root for the previously installed system was not found".
There don't seem to be any parameters documented that can be added to the grub2 boot commands to point out how to find the root fs. Giving the same parameters used to boot the system normally just cause it to boot into Fedora 16 and not launch anaconda.
Version-Release number of selected component (if applicable): preupgrade-1.1.10-1.fc16.noarch
How reproducible: very
Steps to Reproduce:
1. Install F16 using btrfs for root, or use btrfs-convert
2. Create a subvolume snapshot of /
3. Configure rootflags=subvol=<snapshot name>
4. Reboot to subvolume snapshot, and remove everything from root btrfs fs except root subvolume
5. Install preupgrade
6. run preupgrade and reboot
Anaconda will run and then display error message about not finding the previously installed system.
Fedora 16 upgraded to Fedora 17
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