From 9cb1c4df7b9ce1a9ad1312621b0f2b16a94fba3a Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 3 Jun 2024 15:54:25 +0200
Subject: Adding upstream version 060+5.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 modules.d/90overlayfs/module-setup.sh      | 19 +++++++++++++++++++
 modules.d/90overlayfs/mount-overlayfs.sh   | 20 ++++++++++++++++++++
 modules.d/90overlayfs/prepare-overlayfs.sh | 21 +++++++++++++++++++++
 3 files changed, 60 insertions(+)
 create mode 100755 modules.d/90overlayfs/module-setup.sh
 create mode 100755 modules.d/90overlayfs/mount-overlayfs.sh
 create mode 100755 modules.d/90overlayfs/prepare-overlayfs.sh

(limited to 'modules.d/90overlayfs')

diff --git a/modules.d/90overlayfs/module-setup.sh b/modules.d/90overlayfs/module-setup.sh
new file mode 100755
index 0000000..893e2dc
--- /dev/null
+++ b/modules.d/90overlayfs/module-setup.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+check() {
+    [[ $hostonly ]] && return 1
+    return 255
+}
+
+depends() {
+    echo base
+}
+
+installkernel() {
+    instmods overlay
+}
+
+install() {
+    inst_hook mount 01 "$moddir/mount-overlayfs.sh"
+    inst_hook pre-mount 01 "$moddir/prepare-overlayfs.sh"
+}
diff --git a/modules.d/90overlayfs/mount-overlayfs.sh b/modules.d/90overlayfs/mount-overlayfs.sh
new file mode 100755
index 0000000..e1d23fb
--- /dev/null
+++ b/modules.d/90overlayfs/mount-overlayfs.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh
+
+getargbool 0 rd.live.overlay.overlayfs && overlayfs="yes"
+getargbool 0 rd.live.overlay.readonly -d -y readonly_overlay && readonly_overlay="--readonly" || readonly_overlay=""
+
+ROOTFLAGS="$(getarg rootflags)"
+
+if [ -n "$overlayfs" ]; then
+    if [ -n "$readonly_overlay" ] && [ -h /run/overlayfs-r ]; then
+        ovlfs=lowerdir=/run/overlayfs-r:/run/rootfsbase
+    else
+        ovlfs=lowerdir=/run/rootfsbase
+    fi
+
+    if ! strstr "$(cat /proc/mounts)" LiveOS_rootfs; then
+        mount -t overlay LiveOS_rootfs -o "$ROOTFLAGS,$ovlfs",upperdir=/run/overlayfs,workdir=/run/ovlwork "$NEWROOT"
+    fi
+fi
diff --git a/modules.d/90overlayfs/prepare-overlayfs.sh b/modules.d/90overlayfs/prepare-overlayfs.sh
new file mode 100755
index 0000000..87bcc19
--- /dev/null
+++ b/modules.d/90overlayfs/prepare-overlayfs.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh
+
+getargbool 0 rd.live.overlay.overlayfs && overlayfs="yes"
+getargbool 0 rd.live.overlay.reset -d -y reset_overlay && reset_overlay="yes"
+
+if [ -n "$overlayfs" ]; then
+    if ! [ -e /run/rootfsbase ]; then
+        mkdir -m 0755 -p /run/rootfsbase
+        mount --bind "$NEWROOT" /run/rootfsbase
+    fi
+
+    mkdir -m 0755 -p /run/overlayfs
+    mkdir -m 0755 -p /run/ovlwork
+    if [ -n "$reset_overlay" ] && [ -h /run/overlayfs ]; then
+        ovlfsdir=$(readlink /run/overlayfs)
+        info "Resetting the OverlayFS overlay directory."
+        rm -r -- "${ovlfsdir:?}"/* "${ovlfsdir:?}"/.* > /dev/null 2>&1
+    fi
+fi
-- 
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