1 files changed, 23 insertions, 0 deletions

diff --git a/xorriso-layer.sh b/xorriso-layer.sh
new file mode 100755
index 0000000..1afb9f8
--- /dev/null
+++ b/xorriso-layer.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+outdev=debian-live-8.4.0-amd64-standard.btrfs.layered.iso
+indev=debian-live-8.4.0-amd64-standard.btrfs.iso
+volid=SamizdatLive
+btrfs_layer_iso_path=live/layer.btrfs
+btrfs_layer_filesystem=debian-live-8.4.0-amd64-standard.layer.snapshot.2016-04-22.154447.btrfs
+
+die() { printf '%s\n' "$*"; exit 1; }
+
+set -ex
+
+cp --reflink "$indev" "$outdev"~
+time xorriso \
+        -drive_class clear_list all \
+        -outdev "$outdev"~ -indev "$outdev"~ \
+        -report_about mishap \
+        -volid "$volid" \
+        -return_with sorry 0 \
+        -pathspecs on -overwrite on \
+        -add_plainly any \
+        "${btrfs_layer_iso_path}=${btrfs_layer_filesystem}"
+mv -f "$outdev"~ "$outdev"