[linux-lvm] pvcreate problem
Heinz J . Mauelshagen
mauelshagen at sistina.com
Fri Dec 6 08:59:02 UTC 2002
On Thu, Dec 05, 2002 at 05:27:01PM -0600, Alexander Lazarevich wrote:
> i just installed a fresh RH linux 7.3, with LVM 1, or whatever comes in
> the RH distribution.
>
> ihe first thing i'm trying to do is pvcreate on my big RAID 5 array, which
> is /dev/sdb:
>
> [root at discord root]# pvcreate /dev/sdb
> pvcreate -- ERROR: can't initialize physical volume "/dev/sdb" of volume
> group "homevg" without -ff
>
> but there is no volume group homevg:
>
> [root at discord root]# vgdisplay homevg
> vgdisplay -- volume group "homevg" not found
>
> i am able to fdisk a partition onto /dev/sdb, and then do a pvcreate on
> that partition, but i want to do a pvcreate on the whole free volume, no
> partitions! i may have made a typo before, by trying to do a pvcreate
> /dev/sdb, i instead did a vgcreate /dev/sdb. and them i might have tried
> some other crap cause it was freeking out. i rebooted so i can see the
> history, unless lvm keeps some kind of log file? i couldnt find one.
No log file ITR.
In general having at least one partition per device is a good idea, because
sources like /proc/partitions or tools like fdisk find that there's something
on the device. You loose _very_ little capacity that way.
If you still want to use /dev/sdv directly "pvcreate -ff /dev/sdb;vgcreate ..."
should do it after you remove any partition table from /dev/sdb again.
Eventually you need a "dd if=/dev/zero of=/dev/sdb bs=512 count=1" _after_
you removed the partition table.
>
> i rebooted, etc. id prefer not to have to reinstall everything. how do i
> fix this problem?
>
> any ideas?
>
> thanks in advance!
>
> alex
> --- ---
> Alex Lazarevich | Systems | Imaging Technology Group
> alazarev at itg.uiuc.edu | (217)244-1565 | www.itg.uiuc.edu
> --- ---
>
>
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm at sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
--
Regards,
Heinz -- The LVM Guy --
*** Software bugs are stupid.
Nevertheless it needs not so stupid people to solve them ***
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Heinz Mauelshagen Sistina Software Inc.
Senior Consultant/Developer Am Sonnenhang 11
56242 Marienrachdorf
Germany
Mauelshagen at Sistina.com +49 2626 141200
FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
More information about the linux-lvm
mailing list