Fix spurious error msgs from live-boot about failed mounts…

.. and directories already existing

> mount: mounting /dev/sr0 on /run/live/persistence/sr0 failed: No such device
> mount: mounting /dev/vda on /run/live/persistence/vda failed: No such device
> mkdir: can't create directory '/run/live/persistence/vda3/rw': File exists
> mkdir: can't create directory '/run/live/persistence/vda3/work': File exists

diff --git a/components/9990-misc-helpers.sh b/components/9990-misc-helpers.sh
index 75338e0..7994ecd 100755 (executable)
--- a/components/9990-misc-helpers.sh
+++ b/components/9990-misc-helpers.sh
@@ -780,7 +780,7 @@ mount_persistence_media ()
                then
                        mount_opts="ro,noatime"
                fi
-               if mount -t "${fstype}" -o "${mount_opts}" "${device}" "${backing}" >/dev/null
+               if mount -t "${fstype}" -o "${mount_opts}" "${device}" "${backing}" >/dev/null 2>&1
                then
                        echo ${backing}
                        return 0
@@ -1383,8 +1383,8 @@ do_union ()
                        # + a workdir to become mounted
                        # + workdir and upperdir to reside under the same mount
                        # + workdir and upperdir to be in separate directories
-                       mkdir "${unionrw}/rw"
-                       mkdir "${unionrw}/work"
+                       mkdir -p "${unionrw}/rw"
+                       mkdir -p "${unionrw}/work"
                        unionmountopts="-o noatime,lowerdir=${unionro},upperdir=${unionrw}/rw,workdir=${unionrw}/work"
                        ;;
        esac