Created attachment 189988 [details]
just tried to create new partition on a removable pendrive (da0) on a FreeBSD system where '/' is on ZFS (Boot Environment).
When I tried to 'Commit' the changes I got an error that a mountpoint of '/' must exist ... and sade is not able to detect one as its on ZFS.
Details in the attachement.
Plase modify /usr/sbin/sade so it will NOT check for the existing '/' mount, as its quite usable as 'graphical' partition manager in base.