Re: [OT][Bacula-users] RAID1

[Jo <ml...@wi...>]

Mike Reinehr wrote:

>On Wednesday 25 May 2005 03:00 am, Danie Theron wrote:
>  
>
>>Hi ,
>>
>>I know this is a bit off bacula topic probably. I want to remove RAID1
>>from a disk , everytime I boot it it's looking for the 2nd disk. I want
>>to simpy boot into a normal "vanilla" disk. Can I edit the fstab and
>>just change the /dev/md0 device to whatever the disk is (/dev/hda) ? I'm
>>really at odds here , if anyone can maybe help me or point me in the
>>right direction that would be great.
>>
>>Thanks in advance!
>>
>>Danie
>>
>>    
>>
>
>Danie,
>
>Tread cautiously here, as you easily can loose everything!
>
>FIrst, run mdadm --detail /dev/md0 to find out exactly what partitions are 
>included in the md0 device. The last two lines or so should give you the 
>information.
>
>Run mdadm -S /dev/md0 to shut down mirroring.
>
>Use cfdisk /dev/hda. Change the partition type for the relevant partition(s) 
>from FD (RAID autodetect) to 83 (Linux). Write & reboot. When you reboot, no 
>RAID components should be detected and you can mount your partition(s) 
>normally. (Edit /etc/fstab appropriately before rebooting.)
>
>BACKUP, BACKUP, BACKUP!!! (Wouldn't hurt to backup your partition table with 
>sfdisk -d, as well.)
>
>A similar way to do this would be to boot from a Knoppix disk. Make all the 
>changes & then reboot.
>  
>
That sounds like an interesting experiment I'll try once on a machine 
where the data doesn't matter. I hadn't thought it would be able to work.

Jo