+ if ! mount -t ${UNIONTYPE} ${unionmountopts} ${UNIONTYPE} "${unionmountpoint}" 2>/dev/null
+ then
+ # Ref: kiwi from OpenSuse kiwi-7.02.18-1.1
+ # overlayfs in version >= v22 behaves differently
+ # + renamed from overlayfs to overlay
+ # + requires a workdir to become mounted
+ # + requires workdir and upperdir to reside under the same mount
+ # + requires workdir and upperdir to be in separate subdirs
+ mkdir ${unionrw}/rw
+ mkdir ${unionrw}/work
+ unionmountopts="-o noatime,lowerdir=${unionro},upperdir=${unionrw}/rw,workdir=${unionrw}/work"
+ mount -t ${UNIONTYPE} ${unionmountopts} ${UNIONTYPE} "${unionmountpoint}"
+ fi