depot/pkgs/os-specific/linux/systemd/0002-Don-t-try-to-unmount-nix-or-nix-store.patch
Luke Granger-Brown 57725ef3ec Squashed 'third_party/nixpkgs/' content from commit 76612b17c0ce
git-subtree-dir: third_party/nixpkgs
git-subtree-split: 76612b17c0ce71689921ca12d9ffdc9c23ce40b2
2024-11-10 23:59:47 +00:00

45 lines
1.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Raito Bezarius <masterancpp@gmail.com>
Date: Mon, 19 Jun 2023 02:11:35 +0200
Subject: [PATCH] Don't try to unmount /nix or /nix/store
They'll still be remounted read-only.
https://github.com/NixOS/nixos/issues/126
Original-Author: Eelco Dolstra <eelco.dolstra@logicblox.com>
---
src/shared/fstab-util.c | 2 ++
src/shutdown/umount.c | 6 ++++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/src/shared/fstab-util.c b/src/shared/fstab-util.c
index eac5bb8d3b..d8187bfa99 100644
--- a/src/shared/fstab-util.c
+++ b/src/shared/fstab-util.c
@@ -66,6 +66,8 @@ bool fstab_is_extrinsic(const char *mount, const char *opts) {
/* Don't bother with the OS data itself */
if (PATH_IN_SET(mount,
"/",
+ "/nix",
+ "/nix/store",
"/usr",
"/etc"))
return true;
diff --git a/src/shutdown/umount.c b/src/shutdown/umount.c
index ca6d36e054..0a9227c9a8 100644
--- a/src/shutdown/umount.c
+++ b/src/shutdown/umount.c
@@ -170,8 +170,10 @@ int mount_points_list_get(const char *mountinfo, MountPoint **head) {
static bool nonunmountable_path(const char *path) {
assert(path);
- return PATH_IN_SET(path, "/", "/usr") ||
- path_startswith(path, "/run/initramfs");
+ return PATH_IN_SET(path, "/", "/usr")
+ || path_equal(path, "/nix")
+ || path_equal(path, "/nix/store")
+ || path_startswith(path, "/run/initramfs");
}
static void log_umount_blockers(const char *mnt) {