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lxc_setup_fs: Create /dev/shm folder if it doesn't exist

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When running application containers with lxc-execute, /dev is
populated only with device entries. Since /dev is a tmpfs mount in
the container environment, the /dev/shm folder not being present is not
a sufficient reason for the /dev/shm mount to fail.

Create the /dev/shm directory if not present.

Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
This commit is contained in:
Bogdan Purcareata 2016-01-08 15:38:44 +00:00 committed by Stéphane Graber
parent 01074e5b34
commit 81e3c9cf8b
1 changed files with 4 additions and 0 deletions
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4
src/lxc/initutils.c
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@ -47,6 +47,10 @@ extern void lxc_setup_fs(void)
if (mount_fs("proc", "/proc", "proc"))
INFO("failed to remount proc");
/* if /dev has been populated by us, /dev/shm does not exist */
if (access("/dev/shm", F_OK) && mkdir("/dev/shm", 0777))
INFO("failed to create /dev/shm");
/* if we can't mount /dev/shm, continue anyway */
if (mount_fs("shmfs", "/dev/shm", "tmpfs"))
INFO("failed to mount /dev/shm");