> On Sat, 2006-06-24 at 07:02 +0100, centos@xxxxxxxxxxxxxxxx wrote:
>> Hi all,
>>
>> I've been wrestling with a problem with drdb and centos. I have
>> successfully created one drbd resource, but when I try the create a 2nd,
>> I
>> get an error on one of the nodes:
>>
>> Lower device is already mounted.
>> Command 'drbdsetup /dev/drbd1 disk /dev/hdd1 internal -1' terminated
>> with
>> exit code 20
>>
>> The partition is not mounted from fstab etc and is newly created with
>> parted after wiping this disk with dd.
>>
>> On the node with the problem I see:
>>
>> cat /proc/partitions
>> major minor #blocks name
>>
>> 3 0 60034968 hda
>> 3 1 514048 hda1
>> 3 2 1534207 hda2
>> 3 3 57986617 hda3
>> 22 0 120060864 hdc
>> 22 1 114688003 hdc1
>> 22 64 117220824 hdd
>> 22 65 114688003 hdd1
>> 253 0 117219800 dm-0
>> 253 1 114688003 dm-1
>> 147 0 114556928 drbd0
>>
>> On the other node the dm-0 and dm-1 do not occur. Being new to Linux, I
>> am
>> not sure where these come from. I have tried google, but nothing makes
>> sense. This maybe a red herring, but dm-1 has the same number of blocks
>> as hdd1 which I am trying to mount so I'm guessing that this is the
>> cause
>> of the problem.
>>
>> As I have tried changing every thing I can except the mb/processor and
>> reinstalling, I'm really stuck.
>>
>> HELP Please.
>>
>> Rob
>>
>>
>>
>
> I am not an expert on filesystems ... but dm-0 and dm-1 look like raid 0
> or LVM partitions as they have 253 as their Major device number.
>
> What does fdisk -l say for that drive (/dev/hdd).
>
Thanks for the reply.
As far as I am aware, there is no raid or lvm setup on the machine.
disk -l for hdd gives:
Disk /dev/hdd: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdd1 1 14278 114688003+ 83 Linux
Rob
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