mondorestore doesn't recreate md devices correctly

[Bruno Cornec]

As reported on mondo ML, there is an issue when trying to restore md devices with mondorestore in 3.2.1

Releant log entry:

DBG4: [Main] ../src/mondorestore/mondo-prep.c->create_raid_device_via_mdadm#549: cmd built: mdadm --create --force --run --auto=yes /dev/md126 --level=raid1 --raid-devices=2
DBG4: [Main] ../src/mondorestore/mondo-prep.c->create_raid_device_via_mdadm#552: Working on additional param #0 (Label: UUID)
DBG2: [Main] ../src/mondorestore/mondo-prep.c->create_raid_device_via_mdadm#557: Managing previous UUID 124b31f0:fbc29386:80013f8f:72f4879d
7
DBG4: [Main] ../src/mondorestore/mondo-prep.c->create_raid_device_via_mdadm#552: Working on additional param #1 (Label: Version)
DBG2: [Main] ../src/mondorestore/mondo-prep.c->create_raid_device_via_mdadm#569: Managing previous Version 1.0
1
DBG4: [Main] ../src/mondorestore/mondo-prep.c->create_raid_device_via_mdadm#577: cmd built: mdadm --create --force --run --auto=yes /dev/md126 --level=raid1 --raid-devices=2 --uuid 124b31f0:fbc29386:80013f8f:72f4879d
7 -e 1.0
1
DBG4: [Main] ../src/mondorestore/mondo-prep.c->create_raid_device_via_mdadm#597: cmd built: mdadm --create --force --run --auto=yes /dev/md126 --level=raid1 --raid-devices=2 --uuid 124b31f0:fbc29386:80013f8f:72f4879d
7 -e 1.0
1
DBG4: [Main] ../src/mondorestore/mondo-prep.c->create_raid_device_via_mdadm#604: cmd built: mdadm --create --force --run --auto=yes /dev/md126 --level=raid1 --raid-devices=2 --uuid 124b31f0:fbc29386:80013f8f:72f4879d
7 -e 1.0
1 --chunk=64
DBG2: [Main] ../src/mondorestore/mondo-prep.c->create_raid_device_via_mdadm#606: RAID device re-created with the following command:
mdadm --create --force --run --auto=yes /dev/md126 --level=raid1 --raid-devices=2 --uuid 124b31f0:fbc29386:80013f8f:72f4879d
7 -e 1.0
1 --chunk=64 /dev/sda1
d /dev/sdb1
d
INFO: running: mdadm --create --force --run --auto=yes /dev/md126 --level=raid1 --raid-devices=2 --uuid 124b31f0:fbc29386:80013f8f:72f4879d 7 -e 1.0 1 --chunk=64 /dev/sda1 d /dev/sdb1 d > /tmp/mondo.tmp.8g102M/mondo-run-prog-thing.tmp 2> /tmp/mondo.tmp.8g102M/mondo-run-prog-thing.err
INFO: --------------------------------start of output-----------------------------
INFO: mdadm: You have listed more devices (6) than are in the array(2)!
INFO: --------------------------------end of output------------------------------
INFO: ...ran with res=256
DBG1: [Main] ../src/mondorestore/mondo-prep.c->format_device#746: Creating RAID device /dev/md126 via mdadm returned 256

[Bruno Cornec]

During mondorestore the /etc/raidtab file which is correct initialy is modified and corrupted, thus mdadm fails to create what it needs to do.

[Bruno Cornec]

Should be fixed with rev [3566]

[Bruno Cornec]

And also with rev [3572]