[linux-lvm] LVM partition type
Bryn M. Reeves
bmr at redhat.com
Thu Mar 5 15:59:02 UTC 2009
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.
More information about the linux-lvm