From what I've seen from digging over the past few months, this is no way to make
friends and become popular, but I see that the F21 installer is letting folks config /boot
as a btrfs subvolume once again so I tried it.
I'll understand if you tell me to go away and never come back. However, if this is
supposed to be supported then I've run into a hiccup. Actually, a burp.
I did the following with
https://dl.fedoraproject.org/pub/alt/stage/21_Beta_RC1/Live/x86_64/Fedora....
Initial sanity-check install: config as btrfs and accept proposed defaults ->
successful boot and login.
Re-install as before except change /boot to btrfs -> default boot kernel panic (no
root), but recovery boot was successful and allowed login.
I ran updates and saw an error about grubby at the end. /var/log/grubby had errors about
"/boot/boot/vmlinux-..." ... that doesn't look right.
So, re-install, again changing /boot to brtfs but also change /boot "name" to
"burp" -> same default boot panic, but successful recovery boot and login.
I ran updates, saw same error about grubby, and now see /var/log/grubby errors about
"/boot/burp/vmlinux...".
Attached GIFs are "a-F21-boot-btrfs-name-burp.gif" showing how I changed /boot
to btrfs and changed its name to "burp",
"b-F21-btrfs-boot-panic-root.gif" showing the default boot panic, and
"c-F21-btrfs-boot-burp-vmlinux.gif" showing the grubby
"/boot/burp/vmlinux..." errors.
- James