2 files changed, 59 insertions, 0 deletions
diff --git a/debian/extra/initramfs-tools/scripts/init-bottom/udev b/debian/extra/initramfs-tools/scripts/init-bottom/udev
new file mode 100755
index 0000000..73887ea
--- /dev/null
+++ b/debian/extra/initramfs-tools/scripts/init-bottom/udev
@@ -0,0 +1,28 @@
+#!/bin/sh -e
+
+PREREQS=""
+
+prereqs() { echo "$PREREQS"; }
+
+case "$1" in
+    prereqs)
+    prereqs
+    exit 0
+    ;;
+esac
+
+# Stop udevd, we'll miss a few events while we run init, but we catch up
+udevadm control --exit
+
+# move the /dev tmpfs to the rootfs; fall back to util-linux mount that does
+# not understand -o move
+mount -n -o move /dev "${rootmnt:?}/dev" || mount -n --move /dev "${rootmnt}/dev"
+
+# create a temporary symlink to the final /dev for other initramfs scripts
+if command -v nuke >/dev/null; then
+    nuke /dev
+else
+    # shellcheck disable=SC2114
+    rm -rf /dev
+fi
+ln -s "${rootmnt}/dev" /dev
diff --git a/debian/extra/initramfs-tools/scripts/init-top/udev b/debian/extra/initramfs-tools/scripts/init-top/udev
new file mode 100755
index 0000000..9bdfe86
--- /dev/null
+++ b/debian/extra/initramfs-tools/scripts/init-top/udev
@@ -0,0 +1,31 @@
+#!/bin/sh -e
+
+PREREQS=""
+
+prereqs() { echo "$PREREQS"; }
+
+case "$1" in
+    prereqs)
+    prereqs
+    exit 0
+    ;;
+esac
+
+if [ -w /sys/kernel/uevent_helper ]; then
+	echo > /sys/kernel/uevent_helper
+fi
+
+if [ "${quiet:-n}" = "y" ]; then
+	log_level=notice
+else
+	log_level=info
+fi
+
+SYSTEMD_LOG_LEVEL=$log_level /lib/systemd/systemd-udevd --daemon --resolve-names=never
+
+udevadm trigger --type=subsystems --action=add
+udevadm trigger --type=devices --action=add
+udevadm settle || true
+
+# Leave udev running to process events that come in out-of-band (like USB
+# connections)