test: wait for loopback device being ready to manipulate

Follow-up for 6626ea08f6.
2022-03-17 16:11:12 +00:00
parent 63a185dc72
commit b7ee9b3551
1 changed files with 5 additions and 0 deletions
@@ -199,6 +199,11 @@ $D/zzz7 : start=     6291416, size=       98304, type=0FC63DAF-8483-4772-8E79-3D
 EOF

    LOOP="$(losetup -P --show --find "$D/zzz")"
+    while : ; do
+        test -e "$LOOP" && break
+        sleep .2
+    done
+
    VOLUME="test-repart-$RANDOM"

    touch "$D/empty-password"