You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
3.6 KiB
80 lines
3.6 KiB
From c22461b748ca92c3d2bdb799f0b7cd26ce72b03c Mon Sep 17 00:00:00 2001
|
|
From: Yu Watanabe <watanabe.yu+github@gmail.com>
|
|
Date: Wed, 26 Jul 2023 09:39:23 +0900
|
|
Subject: [PATCH] fstab-generator: add a flag to accept entry for "/" in initrd
|
|
|
|
When both prefix_sysroot and accept_root is true, the entry for "/" will
|
|
be accepted and converted to "/sysroot/".
|
|
|
|
Why? If the entry is read from the main system's fstab, then we already
|
|
mounted /sysroot/, hence it is not and should not re-add the .mount unit
|
|
for /sysroot/. However, if we want to specify the root mount through the
|
|
kernel command line or credential, without this change, we need to
|
|
specify the same entry in the two options. E.g.
|
|
===
|
|
systemd.mount-extra=/dev/sda1:/:auto:defaults
|
|
rd.systemd.mount-extra=/dev/sda1:/sysroot:auto:defaults
|
|
===
|
|
That's inconvenient. Of course, we can dedup that by using traditional
|
|
options, but cannot when defined in credential.
|
|
|
|
(cherry picked from commit 22f5a825e40ad9c8eeae18b763676759d24bb434)
|
|
|
|
Related: #2190226
|
|
---
|
|
src/fstab-generator/fstab-generator.c | 12 ++++++++----
|
|
1 file changed, 8 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c
|
|
index f91a863a1d..cf3ff4f598 100644
|
|
--- a/src/fstab-generator/fstab-generator.c
|
|
+++ b/src/fstab-generator/fstab-generator.c
|
|
@@ -307,9 +307,9 @@ static bool mount_is_network(const char *fstype, const char *options) {
|
|
(fstype && fstype_is_network(fstype));
|
|
}
|
|
|
|
-static bool mount_in_initrd(const char *where, const char *options) {
|
|
+static bool mount_in_initrd(const char *where, const char *options, bool accept_root) {
|
|
return fstab_test_option(options, "x-initrd.mount\0") ||
|
|
- (where && path_equal(where, "/usr"));
|
|
+ (where && PATH_IN_SET(where, "/usr", accept_root ? "/" : NULL));
|
|
}
|
|
|
|
static int write_timeout(
|
|
@@ -843,6 +843,7 @@ static int parse_fstab_one(
|
|
const char *options,
|
|
int passno,
|
|
bool prefix_sysroot,
|
|
+ bool accept_root, /* This takes an effect only when prefix_sysroot is true. */
|
|
bool use_swap_enabled) {
|
|
|
|
_cleanup_free_ char *what = NULL, *where = NULL;
|
|
@@ -854,7 +855,7 @@ static int parse_fstab_one(
|
|
assert(fstype);
|
|
assert(options);
|
|
|
|
- if (prefix_sysroot && !mount_in_initrd(where_original, options))
|
|
+ if (prefix_sysroot && !mount_in_initrd(where_original, options, accept_root))
|
|
return 0;
|
|
|
|
is_swap = streq_ptr(fstype, "swap");
|
|
@@ -975,7 +976,9 @@ static int parse_fstab(bool prefix_sysroot) {
|
|
while ((me = getmntent(f))) {
|
|
r = parse_fstab_one(fstab,
|
|
me->mnt_fsname, me->mnt_dir, me->mnt_type, me->mnt_opts, me->mnt_passno,
|
|
- prefix_sysroot, /* use_swap_enabled = */ true);
|
|
+ prefix_sysroot,
|
|
+ /* accept_root = */ false,
|
|
+ /* use_swap_enabled = */ true);
|
|
if (r < 0 && ret >= 0)
|
|
ret = r;
|
|
if (arg_sysroot_check && r > 0)
|
|
@@ -1286,6 +1289,7 @@ static int add_mounts_from_cmdline(void) {
|
|
m->options,
|
|
/* passno = */ 0,
|
|
/* prefix_sysroot = */ !m->for_initrd && in_initrd(),
|
|
+ /* accept_root = */ true,
|
|
/* use_swap_enabled = */ false);
|
|
if (r < 0 && ret >= 0)
|
|
ret = r;
|