I'm currently running fedora 21 with a btrfs filesystem. Unfortunately, I'm currently forced to stick to the oldest of my three kernel versions (3.18.7-200.fc21.x86_64) on boot since newer versions seem to have broken btrfs support.
I do believe fedora clears up older kernel versions (and retains the latest three) so, this might be a problem if I have no bootable kernel versions
Here's what I'd like to do
- I'd like to retain the known good kernel indefinitely (so fedora dosen't prune an 'old' kernel version)
- I'd like to be able to upgrade and replace the two newer kernels so I can test and switch as soon as there's an upgrade.
How would I do this?