Comment # 18 on bug 959411 from Arvin Schnell

(In reply to Thorsten Kukuk from comment #17)
> (In reply to Arvin Schnell from comment #13)
> > (In reply to Jiri Srain from comment #9)
> 
> > > Arvin, is there any particular reason why this was failing for btrfs and not
> > > for other filesystems?
> > 
> > See bug #908073.
> 
> Beside that that bug is "encrypted home on encrypted LVM", but we speak
> about "encrypted root fs without LVM", there was never done an analysis in
> this bug why it does not work and what needs to be done to get it working
> (if it was done, the outcome was not written there).

"The current conclusion is that this is not easily possible with the current
architecture of libstorage: This would be considerable work while introducing
great risk of regression for other scenarios.

So it turns out that yes, there was a good reason to disable this for Btrfs; it
doesn't work in the back-end."