diff options
Diffstat (limited to 'src/tmpfiles')
| -rw-r--r-- | src/tmpfiles/tmpfiles.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c index 63427ae659..97de00e3dc 100644 --- a/src/tmpfiles/tmpfiles.c +++ b/src/tmpfiles/tmpfiles.c @@ -3371,6 +3371,16 @@ static int run(int argc, char *argv[]) { log_setup(); + /* We require /proc/ for a lot of our operations, i.e. for adjusting access modes, for anything + * SELinux related, for recursive operation, for xattr, acl and chattr handling, for btrfs stuff and + * a lot more. It's probably the majority of invocations where /proc/ is required. Since people + * apparently invoke it without anyway and are surprised about the failures, let's catch this early + * and output a nice and friendly warning. */ + if (proc_mounted() == 0) + return log_error_errno(SYNTHETIC_ERRNO(ENOSYS), + "/proc/ is not mounted, but required for successful operation of systemd-tmpfiles. " + "Please mount /proc/. Alternatively, consider using the --root= or --image= switches."); + /* Descending down file system trees might take a lot of fds */ (void) rlimit_nofile_bump(HIGH_RLIMIT_NOFILE); |