File 0079-Assemble-print-error-message-if-mdadm-fail... of Package mdadm

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File 0079-Assemble-print-error-message-if-mdadm-fails-assembli.patch of Package mdadm (Revision dfccc9b07b7cc32c36038de46f9df9d8)

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From 5cfb79dea26d9d7266f79c7c196a1a9f70c16a28 Mon Sep 17 00:00:00 2001
From: Gioh Kim <gi-oh.kim@cloud.ionos.com>
Date: Tue, 16 Apr 2019 18:08:17 +0200
Subject: [PATCH 74/89] Assemble: print error message if mdadm fails assembling
 with --uuid option
Git-commit: 5cfb79dea26d9d7266f79c7c196a1a9f70c16a28
Patch-mainline: mdadm-4.1+
References: jsc#SLE-13700

When mdadm tries to assemble one working device and one zeroed-out device,
it failed but print successful message because there is --uuid option.

Following script always reproduce it.

dd if=/dev/zero of=/dev/ram0 oflag=direct
dd if=/dev/zero of=/dev/ram1 oflag=direct
./mdadm -C /dev/md111 -e 1.2 --uuid="12345678:12345678:12345678:12345678" \
    -l1 -n2 /dev/ram0 /dev/ram1
./mdadm -S /dev/md111
dd if=/dev/zero of=/dev/ram1 oflag=direct
./mdadm -A /dev/md111 --uuid="12345678:12345678:12345678:12345678" \
    /dev/ram0 /dev/ram1

Following is message from mdadm.

mdadm: No super block found on /dev/ram1 (Expected magic a92b4efc, got 00000000)
mdadm: no RAID superblock on /dev/ram1
mdadm: /dev/md111 assembled from 1 drive - need all 2 to start it (use --run to insist).

The mdadm say that it assembled but mdadm does not create /dev/md111.
The message is wrong.

After applying this patch, mdadm reports error correctly as following.

mdadm: No super block found on /dev/ram1 (Expected magic a92b4efc, got 00000000)
mdadm: no RAID superblock on /dev/ram1
mdadm: /dev/ram1 has no superblock - assembly aborted

Signed-off-by: Gioh Kim <gi-oh.kim@cloud.ionos.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
Signed-off-by: Coly Li <colyli@suse.de>
---
 Assemble.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Assemble.c b/Assemble.c
index 6b5a7c8..2ed5884 100644
--- a/Assemble.c
+++ b/Assemble.c
@@ -269,7 +269,7 @@ static int select_devices(struct mddev_dev *devlist,
 			if (auto_assem || !inargv)
 				/* Ignore unrecognised devices during auto-assembly */
 				goto loop;
-			if (ident->uuid_set || ident->name[0] ||
+			if (ident->name[0] ||
 			    ident->super_minor != UnSet)
 				/* Ignore unrecognised device if looking for
 				 * specific array */
-- 
2.26.2

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File 0079-Assemble-print-error-message-if-mdadm-fails-assembli.patch of Package mdadm (Revision dfccc9b07b7cc32c36038de46f9df9d8)

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