X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=components%2F9990-misc-helpers.sh;h=e1f2824335459d3e2e19a77153942900d9e667c9;hb=7a9c73733e5254d36ddc5df87c5908e5cea3ea77;hp=87c49309721ad79d14b2a4b1d05e334d64295b0e;hpb=f2dcec3f21086a557db86ae928295474be79d35b;p=live-boot-grml.git

diff --git a/components/9990-misc-helpers.sh b/components/9990-misc-helpers.sh
index 87c4930..e1f2824 100755
--- a/components/9990-misc-helpers.sh
+++ b/components/9990-misc-helpers.sh
@@ -1318,6 +1318,13 @@ do_union ()
 				panic "overlay needs at least one lower filesystem (read-only branch)."
 			fi
 			unionmountopts="-o noatime,lowerdir=${unionro},upperdir=${unionrw}"
+			# overlayfs requires:
+			# + a workdir to become mounted
+			# + workdir and upperdir to reside under the same mount
+			# + workdir and upperdir to be in separate directories
+			mkdir ${unionrw}/rw
+			mkdir ${unionrw}/work
+			unionmountopts="-o noatime,lowerdir=${unionro},upperdir=${unionrw}/rw,workdir=${unionrw}/work"
 			mount -t ${UNIONTYPE} ${unionmountopts} ${UNIONTYPE} "${unionmountpoint}"
 			;;
 	esac