chrismurphy added a new comment to an issue you are following:
BZ#1039124 RFE: Allow /boot on BTRFS, tracker
Not a show stopper. Advantages of fixing: better space utilization, reflinks for
kernel/initramfs (dedup), compression.
BZ#1415846 Atomic install boot loader fails with btrfs option
Is a show stopper. This is
which has some
commentary on what I think is causing confusion. Probably just skip to comment 9 and 10.
Basically GRUB is getting confused about how things are being assembled, and maybe is
related to bind mounts.
The good news is that a converted ext4 to Btrfs installation (to avoid install time
bootloader confusion) does work with OSTree and all the overlayfs stuff. So I think making
this work out of the box might not be much work.
A down the road optimization might be to rethink whether/how to use subvolumes. I'd
rather see the installer not create them, and have OSTree manage them instead.
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