From 04a9393122d79a3d14506459b0f2c5348673464c Mon Sep 17 00:00:00 2001 From: Joel Holdsworth Date: Thu, 3 Mar 2016 17:25:53 +0000 Subject: core/mount: Don't unmount initramfs mounts A mount within /run/initramfs is indicative that the mount was created by initramfs init and will be unmounted by initramfs shutdown. It is unlikely that such a mount point would even be unmountable by the the main system, for example in the case of the root file- system being loop-mounted from a file in a /run/initramfs mount. --- src/core/mount.c | 15 +++++++++------ src/core/umount.c | 1 + 2 files changed, 10 insertions(+), 6 deletions(-) diff --git a/src/core/mount.c b/src/core/mount.c index 93d2bd595c..540ec5fdda 100644 --- a/src/core/mount.c +++ b/src/core/mount.c @@ -369,7 +369,8 @@ static bool should_umount(Mount *m) { MountParameters *p; if (path_equal(m->where, "/") || - path_equal(m->where, "/usr")) + path_equal(m->where, "/usr") || + path_startswith(m->where, "/run/initramfs")) return false; p = get_mount_parameters(m); @@ -393,13 +394,15 @@ static int mount_add_default_dependencies(Mount *m) { if (UNIT(m)->manager->running_as != MANAGER_SYSTEM) return 0; - /* We do not add any default dependencies to / and /usr, since - * they are guaranteed to stay mounted the whole time, since - * our system is on it. Also, don't bother with anything - * mounted below virtual file systems, it's also going to be - * virtual, and hence not worth the effort. */ + /* We do not add any default dependencies to /, /usr or + * /run/initramfs/, since they are guaranteed to stay + * mounted the whole time, since our system is on it. + * Also, don't bother with anything mounted below virtual + * file systems, it's also going to be virtual, and hence + * not worth the effort. */ if (path_equal(m->where, "/") || path_equal(m->where, "/usr") || + path_startswith(m->where, "/run/initramfs") || path_startswith(m->where, "/proc") || path_startswith(m->where, "/sys") || path_startswith(m->where, "/dev")) diff --git a/src/core/umount.c b/src/core/umount.c index b953fcc152..c21a2be54e 100644 --- a/src/core/umount.c +++ b/src/core/umount.c @@ -412,6 +412,7 @@ static int mount_points_list_umount(MountPoint **head, bool *changed, bool log_e #ifndef HAVE_SPLIT_USR || path_equal(m->path, "/usr") #endif + || path_startswith(m->path, "/run/initramfs") ) continue; -- cgit v1.2.3-54-g00ecf