Hey Urs,
I had just assumed that the btrfs itself is specified like a "normal"
filesystem partition and wrote:
primary / 10G-30G btrfs rw
That sounds like a good feature request actually. When we worked on the
btrfs feature, we focused on the raid functionality. Might have even
falsely assumed that nobody would use btrfs in a single disk configuration.
By looking at the source, I found that "single" is also a valid choice
here.
http://fai-project.org/doc/man/setup-storage.html only gives one btrfs
example, and no formal description of what the btrfs lines should look
like.
Just replace "raid*" with "single" . I suggest you take a look at this:
https://btrfs.wiki.kernel.org/index.php/Using_Btrfs_with_Multiple_Devices
For single devices using "single" for data and the defaults for metadata
is suggested. However, please note that "single" does not simply stand
for "single device", for data it is actually like raid0 but with 1Gb
stripes and for metadata it means that metadata won't be duplicated.
One more thing: the regex matching btrfs-lines in setup-storage
strictly matches spaces after the btrfs token. Maybe that should be
changed to "\s"?
Good idea. I'll fix it soon!
Best regards
Kerim
