base/dracut-lib.sh:ismounted() check for block device rather than pathname

diff --git a/modules.d/99base/dracut-lib.sh b/modules.d/99base/dracut-lib.sh
index a39ca8c5d7c70ded1070c3ce0ccd7933025c8316..7ea5c5441363fcad21af5a26f5c1295e2d42e2eb 100755 (executable)
--- a/modules.d/99base/dracut-lib.sh
+++ b/modules.d/99base/dracut-lib.sh
@@ -464,7 +464,7 @@ find_mount() {
 # usage: ismounted <mountpoint>
 # usage: ismounted /dev/<device>
 ismounted() {
-    if str_starts "$1" "/dev/"; then
+    if [ -b "$1" ]; then
         find_mount "$1" > /dev/null && return 0
         return 1
     fi