Re: Replacing MOBO seems to have disappeared my software RAID1...?

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Signup> Thanks for the sympathy :) I definitely did not use any
Signup> hardware RAID controllers on the original MOBO - I knew it
Signup> would be replaced sooner or later, so I was sure to use
Signup> software RAID.  I used mdadm to create the RAID, like so:
Signup> "mdadm --create --verbose /dev/md0 --level=1 --raid-devices=2
Signup> /dev/sdc1 /dev/sdd1".

So it should be there, but looking at your partitions, I don't see
/dev/sdd1 at all, which makes me go hmmm...

Can you please show the full and complete output from these two
commands?

  sudo mdadm --examine /dev/sdc
  sudo mdadm --examine /dev/sdc1
  sudo mdadm --examine /dev/sdd
 
Did you maybe have LVM underneath, with MD on top?  What does 'sudo pvs'
say?  All of the above commands could be run as root too. 

Signup> Sadly I don't have any info such as lsdev from the previous set up :(

Bummers.

Signup> I know that files are still intact on the drive showing a
Signup> partition still extant, as I ran foremost on it to see if
Signup> there was indeed anything still on it.

What is 'foremost'?  I'm not familiar with this command.  Ok, I see
it's a forensics program.  It might be that you just got your
partition table(s) messed up on sdc and sdd, which will make things
harder.  Esp since, as I noted before, you do NOT have a partition
table on /dev/sdd, which is surprising.



Signup> $ cat /proc/partitions
Signup> major minor  #blocks  name

Signup>     8        0  976762584 sda
Signup>     8        4          1 sda4
Signup>     8        5  922029056 sda5
Signup>     8        6    2097152 sda6
Signup>     8        7   52630528 sda7
Signup>     8       16  234431064 sdb
Signup>     8       17  232428544 sdb1
Signup>     8       18    2000896 sdb2
Signup>     8       32 3907018584 sdc
Signup>     8       33 3907016704 sdc1
Signup>    11        0    1048575 sr0
Signup>     8       48 3907018584 sdd



Signup> $ sudo mdadm --examine /dev/sda4; sudo mdadm --examine /dev/sda5; sudo 
Signup> mdadm --examine /dev/sda6; sudo mdadm --examine /dev/sda7; sudo mdadm 
Signup> --examine /dev/sdb1; sudo mdadm --examine /dev/sdb2
Signup> /dev/sda4:
Signup>     MBR Magic : aa55
Signup> Partition[0] :   1844058112 sectors at         2048 (type 07)
Signup> Partition[1] :      4194564 sectors at   1949325052 (type 05)
Signup> /dev/sda5:
Signup>     MBR Magic : aa55
Signup> Partition[0] :   1701990410 sectors at    218129509 (type 72)
Signup> Partition[1] :    543974724 sectors at    729050177 (type 74)
Signup> Partition[3] :        51635 sectors at   2692939776 (type 00)
Signup> mdadm: No md superblock detected on /dev/sda6.
Signup> mdadm: No md superblock detected on /dev/sda7.
Signup> mdadm: No md superblock detected on /dev/sdb1.
Signup> mdadm: No md superblock detected on /dev/sdb2.

Where's the info for sdc and sdd?  


Signup> On 12/11/2018 12:34 PM, John Stoffel wrote:
>> Ouch!  This isn't a great time.  Can you do:
>> 
>> mdadm --examine /dev/sda1
>> mdadm --examine /dev/sdb1
>> 
>> 
>> You should do this for all four disks, and all partitions on each of
>> the disks.  Also, can you show:
>> 
>> cat /proc/partitions
>> 
>> as well.  But maybe you setup hardware RAID on your old motherboard?
>> Can you provide more details on how you have the old one setup and
>> what model it was?   Did you use the Intel software by any chance?
>> 
>> Do you have an 'lsdev' output from before the motherboard swap?
>> 
>> Good luck!
>> John
>> 
>> 

Signup> -- 

Signup> Tyler Style




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