Package: mdadm
Version: 3.1.4-1+8efb9d1+squeeze1
Severity: normal
The man page says "Also, using --uuid= when creating a v0.90 array will
silently override any --homehost= setting."
This is not true:
root@squeeze00:~# date; mdadm --create /dev/md1
--uuid=6f05ff4e:b4d49c1f:7fa21d88:ad0c50a9 --homehost=migrate08 --metadata=0.90
--leve\
l=mirror --raid-devices=2 /dev/sdb3 missing
Tue Sep 4 12:33:37 PDT 2012
mdadm: /dev/sdb3 appears to be part of a raid array:
level=raid1 devices=2 ctime=Fri Aug 31 20:59:50 2012
Continue creating array? y
mdadm: array /dev/md1 started.
root@squeeze00:~# mdadm --examine /dev/sdb3
/dev/sdb3:
Magic : a92b4efc
Version : 0.90.00
UUID : 6f05ff4e:b4d49c1f:1b351879:7d3a4743
I also tried with homehost after uuid and with no homehost at all. The
uuid is always rewritten.
This is a problem for me because I am attempting to reconstruct an array
of virtual disks for a lenny VM that expects the uuid I specified.
As an aside, I'm not sure why this system has a mdadm.conf (below). The
base VM (before mount the 2 virtual disks to repair) uses no s/w raid.
Note the 2 virtual disks support 2 different RAID devices, based on the
1st and 3rd partitions respectively.
-- Package-specific info:
--- mdadm.conf
DEVICE partitions
CREATE owner=root group=disk mode=0660 auto=yes
HOMEHOST <system>
MAILADDR root
ARRAY /dev/md0 UUID=b0247721:1d41bea7:7fa21d88:ad0c50a9
--- /etc/default/mdadm
INITRDSTART='none'
AUTOSTART=false
AUTOCHECK=true
START_DAEMON=true
DAEMON_OPTIONS="--syslog"
VERBOSE=false
--- /proc/mdstat:
Personalities : [raid1]
unused devices: <none>
--- /proc/partitions:
major minor #blocks name
8 0 10485760 sda
8 1 9984366 sda1
8 2 1 sda2
8 5 497983 sda5
8 32 8388608 sdc
8 33 96358 sdc1
8 34 104422 sdc2
8 35 8187795 sdc3
8 16 8388608 sdb
8 17 96358 sdb1
8 18 104422 sdb2
8 19 8187795 sdb3
--- LVM physical volumes:
LVM does not seem to be used.
--- mount output
/dev/sda1 on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
--- initrd.img-2.6.32-5-amd64:
55146 blocks
79246b981b4d424653bcabc1192b7161 ./sbin/mdadm
078b1dc76a3a2d4500122570e20506d7 ./etc/mdadm/mdadm.conf
f4fbd9099399ab08ba9b9f6c71d77595 ./scripts/local-top/mdadm
2613966c4ad244d2020546606edf881d
./lib/modules/2.6.32-5-amd64/kernel/drivers/md/linear.ko
ac72e0740fbbed1d4a7b771a0b98b2ac
./lib/modules/2.6.32-5-amd64/kernel/drivers/md/raid0.ko
912cd85e91564b2da63cf5d2cd87ce59
./lib/modules/2.6.32-5-amd64/kernel/drivers/md/raid6_pq.ko
0bdeea8ac1da08d22e9f341b57ed3240
./lib/modules/2.6.32-5-amd64/kernel/drivers/md/md-mod.ko
1707ef1ad879edbd28669595280e1380
./lib/modules/2.6.32-5-amd64/kernel/drivers/md/dm-mod.ko
626ce1750d8050656dbac2ca18877747
./lib/modules/2.6.32-5-amd64/kernel/drivers/md/raid456.ko
86a641df9b740ea7194c73ba0b5cf153
./lib/modules/2.6.32-5-amd64/kernel/drivers/md/raid10.ko
1284687180c2447540b9e65acbf84bde
./lib/modules/2.6.32-5-amd64/kernel/drivers/md/raid1.ko
9560815ed4d481c31ba7ee0d0f43dfd6
./lib/modules/2.6.32-5-amd64/kernel/drivers/md/multipath.ko
--- initrd's /conf/conf.d/md:
MD_HOMEHOST='squeeze00'
MD_DEVS=none
MD_MODULES=''
--- /proc/modules:
raid1 18431 0 - Live 0xffffffffa0052000
md_mod 73920 1 raid1, Live 0xffffffffa02cf000
--- /var/log/syslog:
--- volume detail:
/dev/sda is not recognised by mdadm.
/dev/sda1 is not recognised by mdadm.
/dev/sda2 is not recognised by mdadm.
/dev/sda5 is not recognised by mdadm.
/dev/sdb is not recognised by mdadm.
dev/sdb1:
Magic : a92b4efc
Version : 0.90.00
UUID : b0247721:1d41bea7:7fa21d88:ad0c50a9
Creation Time : Mon Jun 27 13:34:19 2011
Raid Level : raid1
Used Dev Size : 96256 (94.02 MiB 98.57 MB)
Array Size : 96256 (94.02 MiB 98.57 MB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Update Time : Fri Aug 31 20:13:27 2012
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 418bd296 - correct
Events : 28
Number Major Minor RaidDevice State
this 0 3 1 0 active sync
0 0 3 1 0 active sync
1 1 3 65 1 active sync
--
/dev/sdb2 is not recognised by mdadm.
/dev/sdb3:
Magic : a92b4efc
Version : 0.90.00
UUID : 6f05ff4e:b4d49c1f:1b351879:7d3a4743
Creation Time : Tue Sep 4 12:33:54 2012
Raid Level : raid1
Used Dev Size : 8187712 (7.81 GiB 8.38 GB)
Array Size : 8187712 (7.81 GiB 8.38 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 1
Update Time : Tue Sep 4 12:33:54 2012
State : active
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0
Checksum : 67ee952 - correct
Events : 1
Number Major Minor RaidDevice State
this 0 8 19 0 active sync /dev/sdb3
0 0 8 19 0 active sync /dev/sdb3
1 0 0 0 0 spare
--
/dev/sdc is not recognised by mdadm.
/dev/sdc1:
Magic : a92b4efc
Version : 0.90.00
UUID : b0247721:1d41bea7:7fa21d88:ad0c50a9
Creation Time : Mon Jun 27 13:34:19 2011
Raid Level : raid1
Used Dev Size : 96256 (94.02 MiB 98.57 MB)
Array Size : 96256 (94.02 MiB 98.57 MB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Update Time : Fri Aug 31 20:13:27 2012
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 418bd2d8 - correct
Events : 28
Number Major Minor RaidDevice State
this 1 3 65 1 active sync
0 0 3 1 0 active sync
1 1 3 65 1 active sync
--
/dev/sdc2 is not recognised by mdadm.
/dev/sdc3 is not recognised by mdadm.
--- /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-2.6.32-5-amd64
root=UUID=5214601b-a9c6-496a-95cf-99962f6bb215 ro clock=pit quiet
--- grub2:
set root='(hd0,msdos1)'
set root='(hd0,msdos1)'
set root='(hd0,msdos1)'
set root='(hd0,msdos1)'
linux /boot/vmlinuz-2.6.32-5-amd64
root=UUID=5214601b-a9c6-496a-95cf-99962f6bb215 ro clock=pit quiet
set root='(hd0,msdos1)'
linux /boot/vmlinuz-2.6.32-5-amd64
root=UUID=5214601b-a9c6-496a-95cf-99962f6bb215 ro single clock=pit
--- udev:
ii udev 164-3 /dev/ and hotplug management daemon
4a574fcd059040d33ea18a8aa605a184 /lib/udev/rules.d/64-md-raid.rules
--- /dev:
brw-rw---- 1 root disk 9, 1 Sep 4 12:35 /dev/md1
/dev/disk/by-id:
total 0
lrwxrwxrwx 1 root root 9 Sep 3 21:13 ata-QEMU_HARDDISK_QM00001 -> ../../sda
lrwxrwxrwx 1 root root 10 Sep 3 21:13 ata-QEMU_HARDDISK_QM00001-part1 ->
../../sda1
lrwxrwxrwx 1 root root 10 Sep 3 21:13 ata-QEMU_HARDDISK_QM00001-part2 ->
../../sda2
lrwxrwxrwx 1 root root 10 Sep 3 21:13 ata-QEMU_HARDDISK_QM00001-part5 ->
../../sda5
lrwxrwxrwx 1 root root 9 Sep 3 21:13 ata-QEMU_HARDDISK_QM00002 -> ../../sdb
lrwxrwxrwx 1 root root 10 Sep 3 21:13 ata-QEMU_HARDDISK_QM00002-part1 ->
../../sdb1
lrwxrwxrwx 1 root root 10 Sep 3 21:13 ata-QEMU_HARDDISK_QM00002-part2 ->
../../sdb2
lrwxrwxrwx 1 root root 10 Sep 4 12:33 ata-QEMU_HARDDISK_QM00002-part3 ->
../../sdb3
lrwxrwxrwx 1 root root 9 Sep 3 21:13 ata-QEMU_HARDDISK_QM00003 -> ../../sdc
lrwxrwxrwx 1 root root 10 Sep 3 21:13 ata-QEMU_HARDDISK_QM00003-part1 ->
../../sdc1
lrwxrwxrwx 1 root root 10 Sep 3 21:13 ata-QEMU_HARDDISK_QM00003-part2 ->
../../sdc2
lrwxrwxrwx 1 root root 10 Sep 3 21:13 ata-QEMU_HARDDISK_QM00003-part3 ->
../../sdc3
lrwxrwxrwx 1 root root 9 Sep 3 21:13 scsi-SATA_QEMU_HARDDISK_QM00001 ->
../../sda
lrwxrwxrwx 1 root root 10 Sep 3 21:13 scsi-SATA_QEMU_HARDDISK_QM00001-part1 ->
../../sda1
lrwxrwxrwx 1 root root 10 Sep 3 21:13 scsi-SATA_QEMU_HARDDISK_QM00001-part2 ->
../../sda2
lrwxrwxrwx 1 root root 10 Sep 3 21:13 scsi-SATA_QEMU_HARDDISK_QM00001-part5 ->
../../sda5
lrwxrwxrwx 1 root root 9 Sep 3 21:13 scsi-SATA_QEMU_HARDDISK_QM00002 ->
../../sdb
lrwxrwxrwx 1 root root 10 Sep 3 21:13 scsi-SATA_QEMU_HARDDISK_QM00002-part1 ->
../../sdb1
lrwxrwxrwx 1 root root 10 Sep 3 21:13 scsi-SATA_QEMU_HARDDISK_QM00002-part2 ->
../../sdb2
lrwxrwxrwx 1 root root 10 Sep 4 12:33 scsi-SATA_QEMU_HARDDISK_QM00002-part3 ->
../../sdb3
lrwxrwxrwx 1 root root 9 Sep 3 21:13 scsi-SATA_QEMU_HARDDISK_QM00003 ->
../../sdc
lrwxrwxrwx 1 root root 10 Sep 3 21:13 scsi-SATA_QEMU_HARDDISK_QM00003-part1 ->
../../sdc1
lrwxrwxrwx 1 root root 10 Sep 3 21:13 scsi-SATA_QEMU_HARDDISK_QM00003-part2 ->
../../sdc2
lrwxrwxrwx 1 root root 10 Sep 3 21:13 scsi-SATA_QEMU_HARDDISK_QM00003-part3 ->
../../sdc3
/dev/disk/by-path:
total 0
lrwxrwxrwx 1 root root 9 Sep 3 21:13 pci-0000:00:01.1-scsi-0:0:0:0 ->
../../sda
lrwxrwxrwx 1 root root 10 Sep 3 21:13 pci-0000:00:01.1-scsi-0:0:0:0-part1 ->
../../sda1
lrwxrwxrwx 1 root root 10 Sep 3 21:13 pci-0000:00:01.1-scsi-0:0:0:0-part2 ->
../../sda2
lrwxrwxrwx 1 root root 10 Sep 3 21:13 pci-0000:00:01.1-scsi-0:0:0:0-part5 ->
../../sda5
lrwxrwxrwx 1 root root 9 Sep 3 21:13 pci-0000:00:01.1-scsi-0:0:1:0 ->
../../sdb
lrwxrwxrwx 1 root root 10 Sep 3 21:13 pci-0000:00:01.1-scsi-0:0:1:0-part1 ->
../../sdb1
lrwxrwxrwx 1 root root 10 Sep 3 21:13 pci-0000:00:01.1-scsi-0:0:1:0-part2 ->
../../sdb2
lrwxrwxrwx 1 root root 10 Sep 4 12:33 pci-0000:00:01.1-scsi-0:0:1:0-part3 ->
../../sdb3
lrwxrwxrwx 1 root root 9 Sep 3 21:13 pci-0000:00:01.1-scsi-1:0:0:0 ->
../../sdc
lrwxrwxrwx 1 root root 10 Sep 3 21:13 pci-0000:00:01.1-scsi-1:0:0:0-part1 ->
../../sdc1
lrwxrwxrwx 1 root root 10 Sep 3 21:13 pci-0000:00:01.1-scsi-1:0:0:0-part2 ->
../../sdc2
lrwxrwxrwx 1 root root 10 Sep 3 21:13 pci-0000:00:01.1-scsi-1:0:0:0-part3 ->
../../sdc3
/dev/disk/by-uuid:
total 0
lrwxrwxrwx 1 root root 10 Sep 3 21:13 383bd487-edb6-46b8-9396-e76903bd47e6 ->
../../sda5
lrwxrwxrwx 1 root root 10 Sep 3 21:13 5214601b-a9c6-496a-95cf-99962f6bb215 ->
../../sda1
Auto-generated on Tue, 04 Sep 2012 13:07:35 -0700
by mdadm bugscript 3.1.4-1+8efb9d1+squeeze1
-- System Information:
Debian Release: 6.0.5
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32-5-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages mdadm depends on:
ii debconf 1.5.36.1 Debian configuration management sy
ii libc6 2.11.3-3 Embedded GNU C Library: Shared lib
ii lsb-base 3.2-23.2squeeze1 Linux Standard Base 3.2 init scrip
ii udev 164-3 /dev/ and hotplug management daemo
Versions of packages mdadm recommends:
ii exim4-daemon-light [mail 4.72-6+squeeze2 lightweight Exim MTA (v4) daemon
ii module-init-tools 3.12-2 tools for managing Linux kernel mo
mdadm suggests no packages.
-- debconf information:
mdadm/initrdstart_msg_errexist:
mdadm/initrdstart_msg_intro:
* mdadm/autostart: false
mdadm/autocheck: true
mdadm/initrdstart_msg_errblock:
mdadm/mail_to: root
mdadm/initrdstart_msg_errmd:
* mdadm/initrdstart: none
mdadm/initrdstart_msg_errconf:
mdadm/initrdstart_notinconf: false
mdadm/start_daemon: true
--
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