1 files changed, 36 insertions, 0 deletions

diff --git a/src/initrd.sh b/src/initrd.sh
new file mode 100755
index 0000000..8cc8ea1
--- /dev/null
+++ b/src/initrd.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+initrd=${samizdat_isolinux_dir}/linux/initrd.img
+vmlinuz=${samizdat_isolinux_dir}/linux/vmlinuz
+
+version=$(uname -r)
+version=4.5.0-0.bpo.1-amd64
+conf_dir=initramfs-tools
+
+apt_dependencies=initrd-dependencies.txt
+
+find_source_dirs() {
+    set -- find "$conf_dir" ./old-school "$@"
+    "$@"
+}
+
+force_rebuild()
+{
+    touch "$conf_dir"
+    return 1
+}
+
+rebuild()
+{
+    [ ! -f "$apt_dependencies" ] || sudo apt-get install -q=10 --no-upgrade -y $(cat "$apt_dependencies")
+
+    set -ex
+    cp -f /boot/vmlinuz-${version} "$vmlinuz"
+    /usr/sbin/mkinitramfs -d "$conf_dir" -o "$initrd" ${version} || force_rebuild
+}
+
+if [ ! -e "$initrd" -o ! -e "$vmlinuz" ]; then
+    rebuild
+elif [ "$(find_source_dirs -newer "$initrd" -print -quit)" ]; then
+    rebuild
+fi