Mounting an md device may fail during boot from mdadm's claim
on the device not being released before systemd attempts to mount.
While mdadm is still constructing the array (mdadm --incremental
that is called from within /usr/lib/udev/rules.d/64-md-raid-assembly.rules),
there is an attempt to mount the md device, but there is not a creation
of "/run/mdadm/creating-xxx" file when in incremental mode that
the rule is looking for. Therefore the device is not marked
as SYSTEMD_READY=0 in
"/usr/lib/udev/rules.d/01-md-raid-creating.rules" and missing
synchronization using the "/run/mdadm/creating-xxx" file.
Enable creating the "/run/mdadm/creating-xxx" file during
incremental mode.
Signed-off-by: Nigel Croxon <ncroxon@xxxxxxxxxx>
---
Incremental.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/Incremental.c b/Incremental.c
index 228d2bdd..e0d3fce7 100644
--- a/Incremental.c
+++ b/Incremental.c
@@ -30,6 +30,7 @@
#include "mdadm.h"
#include "xmalloc.h"
+#include "udev.h"
#include <sys/wait.h>
#include <dirent.h>
@@ -286,7 +287,7 @@ int Incremental(struct mddev_dev *devlist, struct
context *c,
/* Couldn't find an existing array, maybe make a new one */
mdfd = create_mddev(match ? match->devname : NULL, name_to_use,
trustworthy,
- chosen_name, 0);
+ chosen_name, 1);
if (mdfd < 0)
goto out_unlock;
@@ -599,6 +600,7 @@ int Incremental(struct mddev_dev *devlist, struct
context *c,
rv = 0;
}
out:
+ udev_unblock();
free(avail);
if (dfd >= 0)
close(dfd);
--
2.31.1
