There are two patches needed in grub2 to support multi-device btrfs
volumes.
This first patch (previously submitted) involves the parameters passed
to grub2-probe. If not correctly passed, grub2-probe issues an error
message. The related problem report is:
https://bugzilla.redhat.com/show_bug.cgi?id=890955
The second problem involves having a multi-device btrfs volume with
/boot being on the btrfs volume either as part of the root subvolume or
as a separate subvolume. The result is an error messare at boot time:
error: no such device: root.
hit any key to continue
The solution is to modify grub-probe.c so that " " is issued rather than
"\n" for a hint. The related problem report is:
https://bugzilla.redhat.com/show_bug.cgi?id=1023161
To minimize problems, the two patches have been attached rather than
provided inline.
Peter, I cc'ed you so you would be aware of these bug reports. It would
be nice if this was applied to both Fedora 20 and 19.
Gene
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