Comment # 4 on bug 966870 from Ludwig Nussel

TW and Leap behave differently here. On TW the maximum root fs size is 20GB
while on Leap it's 10. The leap setting is inherited from SLE. With BTRFS the
numbers change again. There we have a multiplication factor which is two for TW
and four for Leap. So with BTRFS we get 40GB in both cases. Default size 20 and
multiplication factor 2 might be more reasonable indeed.

And now for the funny part which seems to be a bug. According to the
documentation
(https://github.com/yast/yast-storage/blob/master/doc/config.xml.description#L29)
the root filesystem maximum is meant to be applied only in case a separate home
partition is proposed. Without separate home root would consume all space.
Indeed that is the case without lvm. When enabling lvm the root size limit is
applied even though no separate home is proposed. So whatever one may think
about good default settings, at least the behavior is not consistent with the
documentation :-)

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