sys-apps/systemd: work around dracut bug with LVM

Bug: https://bugs.gentoo.org/896364
Signed-off-by: Mike Gilbert <floppym@gentoo.org>

2 files changed, 35 insertions, 0 deletions

diff --git a/sys-apps/systemd/files/systemd-253-initrd-generators.patch b/sys-apps/systemd/files/systemd-253-initrd-generators.patch
new file mode 100644
index 000000000000..60e7b29d7a1f
--- /dev/null
+++ b/sys-apps/systemd/files/systemd-253-initrd-generators.patch
@@ -0,0 +1,34 @@
+https://bugs.gentoo.org/896364
+
+Workaround for bug in sys-kernel/dracut.
+
+From 6b25470ee28843a49c50442e9d8a98edc842ceca Mon Sep 17 00:00:00 2001
+From: Yu Watanabe <watanabe.yu+github@gmail.com>
+Date: Mon, 20 Feb 2023 12:00:30 +0900
+Subject: [PATCH] core/manager: run generators directly when we are in initrd
+
+Some initrd system write files at ourside of /run, /etc, or other
+allowed places. This is a kind of workaround, but in most cases, such
+sandboxing is not necessary as the filesystem is on ramfs when we are in
+initrd.
+
+Fixes #26488.
+---
+ src/core/manager.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/core/manager.c b/src/core/manager.c
+index 7b394794b0d4..306477c6e6c2 100644
+--- a/src/core/manager.c
++++ b/src/core/manager.c
+@@ -3822,8 +3822,8 @@ static int manager_run_generators(Manager *m) {
+         /* If we are the system manager, we fork and invoke the generators in a sanitized mount namespace. If
+          * we are the user manager, let's just execute the generators directly. We might not have the
+          * necessary privileges, and the system manager has already mounted /tmp/ and everything else for us.
+-         */
+-        if (MANAGER_IS_USER(m)) {
++         * If we are in initrd, let's also execute the generators directly, as we are in ramfs. */
++        if (MANAGER_IS_USER(m) || in_initrd()) {
+                 r = manager_execute_generators(m, paths, /* remount_ro= */ false);
+                 goto finish;
+         }
diff --git a/sys-apps/systemd/systemd-253.ebuild b/sys-apps/systemd/systemd-253-r1.ebuild
index 77c9145b2914..cb638034f21f 100644
--- a/sys-apps/systemd/systemd-253.ebuild
+++ b/sys-apps/systemd/systemd-253-r1.ebuild
@@ -231,6 +231,7 @@ src_unpack() {
 
 src_prepare() {
 	local PATCHES=(
+		"${FILESDIR}/systemd-253-initrd-generators.patch"
 	)
 
 	if ! use vanilla; then