* [linux-lvm] LVM partition type
@ 2009-03-05 15:53 Tejas Sumant
2009-03-05 15:59 ` Bryn M. Reeves
0 siblings, 1 reply; 2+ messages in thread
From: Tejas Sumant @ 2009-03-05 15:53 UTC (permalink / raw)
To: linux-lvm
Hi there,
I created a physical volume using pvcreate command on /dev/sda. When I
checked the partition entries in MBR for /dev/sda using fdisk observed
that no partitions were displayed.
Why pvcreate doesnt make partition entry with type 8e in MBR? Which
partition entry gets used in case whole disk is made PV?
--
Tejas Sumant
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [linux-lvm] LVM partition type
2009-03-05 15:53 [linux-lvm] LVM partition type Tejas Sumant
@ 2009-03-05 15:59 ` Bryn M. Reeves
0 siblings, 0 replies; 2+ messages in thread
From: Bryn M. Reeves @ 2009-03-05 15:59 UTC (permalink / raw)
To: LVM general discussion and development
Tejas Sumant wrote:
> Hi there,
>
> I created a physical volume using pvcreate command on /dev/sda. When I
> checked the partition entries in MBR for /dev/sda using fdisk observed
> that no partitions were displayed.
The pvcreate command only creates LVM2 labels, it does not update the
MBR or other disk label at all.
> Why pvcreate doesnt make partition entry with type 8e in MBR? Which
That's your job ;)
If you chose to use partitions for PVs then you need to create those
partitions and set their type codes appropriately (although LVM2
doesn't actually check/use those type codes anywhere - it's really
more of a "documentation" step these days).
> partition entry gets used in case whole disk is made PV?
None of them. If you use the whole disk as a PV it should not have any
MBR at all.
Regards,
Bryn.
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2009-03-05 15:53 [linux-lvm] LVM partition type Tejas Sumant
2009-03-05 15:59 ` Bryn M. Reeves
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