static-nodes: indicate that creation of static nodes should only happen at boot

udev will only manage static nodes that exist at the time udev is started, so
creating static nodes later on will likely not behave as expected. In
particular, recreating the static nodes at run-time will reset any permissions
udev may have applied to the nodes at boot.

See <https://bugzilla.redhat.com/show_bug.cgi?id=1147248> and the discussion
following <http://permalink.gmane.org/gmane.comp.sysutils.systemd.devel/23795>.

Note that this requires (the yet to be released) systemd v217 or a backport
of systemd patch 8c94052ee543c3598a3c7b0c46688150aa2c6168.

diff --git a/tools/static-nodes.c b/tools/static-nodes.c
index d1e3b6e6c942a8eb52a7201c91ab8a664d1eb64f..8d2356da73f3613540bb2e4d2f4f82b17cbe5f2a 100644 (file)
--- a/tools/static-nodes.c
+++ b/tools/static-nodes.c
@@ -96,7 +96,7 @@ static int write_tmpfiles(FILE *out, char modname[], char devname[], char type,
                        return EXIT_FAILURE;
        }
 
-       ret = fprintf(out, "%c /dev/%s 0600 - - - %u:%u\n",
+       ret = fprintf(out, "%c! /dev/%s 0600 - - - %u:%u\n",
                      type, devname, maj, min);
        if (ret < 0)
                return EXIT_FAILURE;