From cc5524ecc60a83fb88cac02fe02e21cde3951a25 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Wed, 9 Mar 2011 02:51:45 +0100 Subject: [PATCH] mount: use /dev/.run as an early boot alias for /var/run During early boot, mount a tmpfs to /dev/.run and then bind mount it to /var/run as soon as /var is available. This makes it possible for programs involved in early boot to put runtime data in /dev/.run which later on will show up in /var/run like any other. This can be used to solve the early-boot D-Bus problem: D-Bus may start up with its socket bound to /dev/.run/dbus/system_bus_socket and after /var it will also be available under the traditional name /var/run/dbus/system_bus_socket. This also is intended to be used as a better place for systemd, mount, mdadm, blkid, plymouth, bootchart and dracut runtime data, which is currently stored in various places in /dev/.xxx. --- src/mount-setup.c | 1 + units/var-run.mount | 6 +++--- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/src/mount-setup.c b/src/mount-setup.c index 5cbaee6b..f08eeb16 100644 --- a/src/mount-setup.c +++ b/src/mount-setup.c @@ -54,6 +54,7 @@ static const MountPoint mount_table[] = { { "devtmpfs", "/dev", "devtmpfs", "mode=755", MS_NOSUID, true }, { "tmpfs", "/dev/shm", "tmpfs", "mode=1777", MS_NOSUID|MS_NODEV, true }, { "devpts", "/dev/pts", "devpts", "mode=620,gid=" STRINGIFY(TTY_GID), MS_NOSUID|MS_NOEXEC, false }, + { "tmpfs", "/dev/.run", "tmpfs", "mode=755", MS_NOSUID|MS_NOEXEC|MS_NODEV, true }, { "tmpfs", "/sys/fs/cgroup", "tmpfs", "mode=755", MS_NOSUID|MS_NOEXEC|MS_NODEV, true }, { "cgroup", "/sys/fs/cgroup/systemd", "cgroup", "none,name=systemd", MS_NOSUID|MS_NOEXEC|MS_NODEV, true }, }; diff --git a/units/var-run.mount b/units/var-run.mount index 8ccb4bb2..cd3889eb 100644 --- a/units/var-run.mount +++ b/units/var-run.mount @@ -10,7 +10,7 @@ Description=Runtime Directory Before=local-fs.target [Mount] -What=tmpfs +What=/dev/.run Where=/var/run -Type=tmpfs -Options=mode=755,nosuid,nodev,noexec +Type=bind +Options=bind -- 2.39.5