Comment # 4 on bug 1089823 from Steffen Winterfeldt

Not sure what yast-storage should do here. Include snapper in the the feature
check, gray out snapshots, show an error when creating snapshots, add a package
requires on snapper, ...

OTOH, yast *does* show an error already. So for me this looks fine. Just the
KDE Live iso needs fixing.

But anyway, Jiri, please advise.