boot unlayered iso if layered is unavailable

1 files changed, 3 insertions, 1 deletions

diff --git a/qemu.sh b/qemu.sh
index ae23152..11c10f2 100755
--- a/qemu.sh
+++ b/qemu.sh
@@ -4,7 +4,9 @@
 # iso=debian-live-8.4.0-amd64-standard.iso
 iso=debian-live-8.4.0-amd64-standard.btrfs.iso
 disk=${iso%.iso}.disk
-iso=${iso%.iso}.layered.iso
+layered=${iso%.iso}.layered.iso
+
+[ -f "$layered" ] && iso=$layered
 
 ./initrd.sh || { echo "./initrd.sh failed" >&2; exit 1; };