From f4a9bdf74c23a55ea96de696155ce9a5dfa43850 Mon Sep 17 00:00:00 2001
From: Frantisek Sumsal <fsumsal@redhat.com>
Date: Mon, 27 Nov 2023 16:16:40 +0100
Subject: [PATCH] fstab-generator: allow overriding path to /sysroot/etc/fstab
 too

Based on: 99e3d4767932bce5febb45e8543162d729d17425
Related: RHEL-1087

rhel-only
---
 src/fstab-generator/fstab-generator.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c
index 105ddd2fd0..02f0bccd2f 100644
--- a/src/fstab-generator/fstab-generator.c
+++ b/src/fstab-generator/fstab-generator.c
@@ -503,13 +503,17 @@ static int add_mount(
         return 0;
 }
 
+static const char *sysroot_fstab_path(void) {
+    return getenv("SYSTEMD_SYSROOT_FSTAB") ?: "/sysroot/etc/fstab";
+}
+
 static int parse_fstab(bool initrd) {
         _cleanup_endmntent_ FILE *f = NULL;
         const char *fstab;
         struct mntent *me;
         int r = 0;
 
-        fstab = initrd ? "/sysroot/etc/fstab" : fstab_path();
+        fstab = initrd ? sysroot_fstab_path() : fstab_path();
         f = setmntent(fstab, "re");
         if (!f) {
                 if (errno == ENOENT)