[linux-lvm] pvcreate -- extended partition "/dev/hda10" doesn't exist

[Heinz Mauelshagen]

Hi.

> 
> I'm new here the Linux-LVM-array. This means I was downloading all
> needed software+patches, compiled successfull and also installed without
> erors on my IBM-Thinkpad (300 MHz PII, 128 MB RAM, 8GByte HD).
> I have all my LINUX-stuff on several extended partitions.
> 

Great.

> Now at first some generally questions (I don't  found an answer for this
> in the docu):
> Is it possible to create a PV on a extended partion or do I need only
> primary partions ?

You can use primary _and_ extended partitions.

> I think pvcreate writes something at the top of the physical volume (
> whole PV or partion).
> Do that works well with other OS-formated parts of the same hdisk ?
> 

Yes, it does.

If you use a partition with pvcreate, you have to set the partition identifier
to 0xfe with fdisk before.
pvcreate checks for this partition identifier to avoid to overwrite _non_
LVM partitions by accident 8*)

<SNIP>

Regards,
Heinz
--

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Systemmanagement C/S                             Deutsche Telekom AG
                                                 Entwicklungszentrum Darmstadt
Heinz Mauelshagen                                Otto-Roehm-Strasse 71c
Senior Systems Engineer                          Postfach 10 05 41
                                                 64205 Darmstadt
mge at ez-darmstadt.telekom.de                      Germany
                                                 +49 6151 886-425
                                                          FAX-386
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