multipath-tools incompatible with dmraid

[Jacek Kuzemczak]

After upgrading to 12.04 from 11.10 my RAID array vanished and refused to mount.

Entering the command "sudo dmraid -ay -vvv -d -i" shows this towards the end of the output.

NOTICE: added /dev/dm-7 to RAID set "sil_biadafcbaiac"
DEBUG: _find_set: searching sil_biadafcbaiac
DEBUG: _find_set: found sil_biadafcbaiac
DEBUG: _find_set: searching sil_biadafcbaiac
DEBUG: _find_set: found sil_biadafcbaiac
NOTICE: added /dev/dm-6 to RAID set "sil_biadafcbaiac"
DEBUG: _find_set: searching sil_biadafcbaiac
DEBUG: _find_set: found sil_biadafcbaiac
DEBUG: _find_set: searching sil_biadafcbaiac
DEBUG: _find_set: found sil_biadafcbaiac
NOTICE: added /dev/sdd to RAID set "sil_biadafcbaiac"
DEBUG: _find_set: searching sil_biadafcbaiac
DEBUG: _find_set: found sil_biadafcbaiac
DEBUG: _find_set: searching sil_biadafcbaiac
DEBUG: _find_set: found sil_biadafcbaiac
NOTICE: added /dev/sdc to RAID set "sil_biadafcbaiac"
DEBUG: checking sil device "/dev/dm-7"
ERROR: sil: wrong # of devices in RAID set "sil_biadafcbaiac" [4/2] on /dev/dm-7
DEBUG: checking sil device "/dev/sdc"
ERROR: sil: wrong # of devices in RAID set "sil_biadafcbaiac" [4/2] on /dev/sdc
DEBUG: checking sil device "/dev/dm-6"
ERROR: sil: wrong # of devices in RAID set "sil_biadafcbaiac" [4/2] on /dev/dm-6
DEBUG: checking sil device "/dev/sdd"
ERROR: sil: wrong # of devices in RAID set "sil_biadafcbaiac" [4/2] on /dev/sdd
DEBUG: set status of set "sil_biadafcbaiac" to 2

Note that dm-7 and sdc are in fact the same disk, the same goes for dm-6 and sdd. Prior to the 12.04 update dmraid would simply ignrore the sd* disks.

Ubuntu Version
Description: Ubuntu 12.04 LTS
Release: 12.04

Version
Installed: 1.0.0.rc16-4.1ubuntu8

What I expected to happen
After rebooting fromthe upgrade to 12.04 my RAID drive would be there

What happened instead
It was not there, a bit of investigation found the above problem.

[Phillip Susi (psusi)]

Can you please post the output of sudo dmsetup info?

[Jacek Kuzemczak (t-jacok-y)]

Quck responce ! Thanks for that !

It looks like dmsetup needs a device, which one should i use ?

[Jacek Kuzemczak (t-jacok-y)]

Oh info. Sorry haha, here you go.

Jacek@local: ~ $ sudo dmsetup info
Name: 350014ee2593a1f7c
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 0
Event number: 1
Major, minor: 252, 5
Number of targets: 1
UUID: mpath-350014ee2593a1f7c

Name: 350000f00dbc35783
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 2
Event number: 1
Major, minor: 252, 1
Number of targets: 1
UUID: mpath-350000f00dbc35783

Name: 350000f00db506277-part1
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 0
Event number: 0
Major, minor: 252, 6
Number of targets: 1
UUID: part1-mpath-350000f00db506277

Name: 350000f00dbc35783-part5
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 2
Event number: 0
Major, minor: 252, 4
Number of targets: 1
UUID: part5-mpath-350000f00dbc35783

Name: 350014ee203e5085a
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 0
Event number: 1
Major, minor: 252, 7
Number of targets: 1
UUID: mpath-350014ee203e5085a

Name: 350000f00dbc35783-part2
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 1
Event number: 0
Major, minor: 252, 3
Number of targets: 1
UUID: part2-mpath-350000f00dbc35783

Name: 350000f00dbc35783-part1
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 1
Event number: 0
Major, minor: 252, 2
Number of targets: 1
UUID: part1-mpath-350000f00dbc35783

Name: 350000f00db506277
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 1
Event number: 1
Major, minor: 252, 0
Number of targets: 1
UUID: mpath-350000f00db506277

[Phillip Susi (psusi)]

You seem to have multipath-tools installed, and it looks like this may be the cause of the problem. If you don't need it, removing it should work around the bug.

[Jacek Kuzemczak (t-jacok-y)]

I do have that installed, I thought it was a dependency of dmraid. I will try removing it though.

Thanks for the help :)

[Jacek Kuzemczak (t-jacok-y)]

Hi again, I sent the previous comment from my laptop, it turns out that I don't actually have multipath-tools installed :s

[Phillip Susi (psusi)]

Can you double check that, because you have multipath dm targets, so I'm not sure how you could have those without having multipath-tools installed.

[Jacek Kuzemczak (t-jacok-y)]

I guess that is what the mpath is telling you ? Well when I tried to remove it when I got home, this was the result

Jacek@local: ~ $ sudo apt-get remove multipath-tools*
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'multipath-tools-boot' for regex 'multipath-tools*'
Note, selecting 'multipath-tools' for regex 'multipath-tools*'
Note, selecting 'multipath-tools-dbg' for regex 'multipath-tools*'
Note, selecting 'multipath-tools-initramfs' for regex 'multipath-tools*'
Package multipath-tools is not installed, so not removed
Package multipath-tools-boot is not installed, so not removed
Package multipath-tools-dbg is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

I know it was installed at some point, since I recognise the name. I beleive it was a dependancy of another package, to be honest I have no idea what it does.

Feel like this is more likely to be my fault with every comment ;)

[Jacek Kuzemczak (t-jacok-y)]

Quick update for anyont finding this having the same problem. Installing multipath-tools and then removing it again seemed to fix the problem for me. Kinda confuding.

[Jacek Kuzemczak (t-jacok-y)]

Excuse my typing ;)

[lulo (lulojs11)]

hello all !...my problem is not the same...or...the same...not sure if not the same (sorry my bad english)
main controller is AMD SB950 via MSI 990FXA-GD80...2 disk - raid 0 (fakeraid)...windows 7 install correctly and working...ubuntu is not install and not finding anny raid-0. Pmagic-2015-05-30 is not correct mapping this array (using boot option dmraid ...module dm-mod is load from kernel):

ls -l /dev/mapper/*
crw------- 1 root root 10, 236 maj 31 02:04 control

and not find anny /dev/dm-0(1,2,3*)

can use "dmraid -ay" is finding:

root@PartedMagic:~# ls -l /dev/mapper
total 0
crw------- 1 root root 10, 236 maj 31 02:04 control
brw-rw---- 1 root disk 254, 0 maj 31 02:04 ddf1_Linux
root@PartedMagic:~# ls -l /dev/dm*
brw-rw---- 1 root disk 254, 0 maj 31 11:14 /dev/dm-0
root@PartedMagic:~#

and

bash-4.1# dmraid -s
/dev/sdb: "pdc" and "ddf1" formats discovered (using ddf1)!
/dev/sda: "pdc" and "ddf1" formats discovered (using ddf1)!
*** Group superset .ddf1_disks
--> Active Subset
name : ddf1_Linux
size : 3906722560
stride : 128
type : stripe
status : ok
subsets: 0
devs : 2
spares : 0
bash-4.1#

not finding installed windows 7...only:

bash-4.1# ls -l /dev/sd*
brw-rw---- 1 root disk 8, 0 maj 31 11:20 /dev/sda
brw-rw---- 1 root disk 8, 1 maj 31 02:04 /dev/sda1
brw-rw---- 1 root disk 8, 2 maj 31 02:04 /dev/sda2
brw-rw---- 1 root disk 8, 16 maj 31 11:20 /dev/sdb

My qeustion...if use this fix http://answerpot.com/showthread.php?3532655-Changing%20from%20dm-raid45.ko%20to%20dm-raid.ko for ubuntu boot process ... ubuntu install correctly and finding more OS ? (ubuntu + windows 7)

latest fix multipath-tools and dmraid dmsetup and kpartx is fixing only if use for fakeraid = raid-5(and 1,4,6,10)...how use if fakeraid = raid-0 on this controller ?

???
???
???

[lulo (lulojs11)]

Find this discussion http://www.spinics.net/lists/ataraid/msg03440.html and supprise...ubuntu tim not implement dmraid for this controller and all raid mode not working for this controller ???

[Phillip Susi (psusi)]

lulo, your issue is unrelated to this bug report.

[lulo (lulojs11)]

my question how to build this array for ubuntu-12.04 and install it...can multipath-tools, dmaraid, dmsetup, kpartx, etc. its still not working for this controller...where bug is for this (my or not only my) problem ?...its sure is this bug not dependency for my problem ?