From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (mx1.redhat.com [172.16.48.31]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id j4B931O28087 for ; Wed, 11 May 2005 05:03:01 -0400 Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.171]) by mx1.redhat.com (8.12.11/8.12.11) with ESMTP id j4B930Hv031746 for ; Wed, 11 May 2005 05:03:00 -0400 Message-ID: <4281CA3F.9050509@gmx.net> Date: Wed, 11 May 2005 11:02:55 +0200 From: Klaus Strebel MIME-Version: 1.0 Subject: Re: [linux-lvm] lvm2 tools can't locate pvs on entire disks References: <42804FE7.6000906@gmx.net> In-Reply-To: Content-Transfer-Encoding: quoted-printable Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="iso-8859-1"; format="flowed" To: LVM general discussion and development Miles Crawford schrieb: >=20 > On Tue, 10 May 2005, Klaus Strebel wrote: >=20 >> Miles Crawford schrieb: >> >>> >>> I'm running into trouble here, getting the lvm scanning tools to=20 >>> notice PVs I have created on entire disks, like this: >>> >>> pvcreate /dev/hdd >>> >>> Some output: >>> >>> root@end root # lvm version >>> LVM version: 2.01.04 (2005-02-09) >>> Library version: 1.01.00-ioctl (2005-01-17) >>> Driver version: 4.1.0 >>> root@end root # uname -a >>> Linux end.snip.net 2.6.8 #6 Sat Oct 9 20:59:02 PDT 2004 i686 GNU/Linux >>> root@end root # lvmdiskscan >>> /dev/hda1 [ 111.79 GB] >>> /dev/hdb1 [ 18.63 GB] >>> /dev/hdd1 [ 186.31 GB] >>> /dev/hdb2 [ 127.59 GB] >>> /dev/hdb3 [ 2.83 GB] >>> 0 disks >>> 5 partitions >>> 0 LVM physical volume whole disks >>> 0 LVM physical volumes >>> root@end root # pvscan >>> No matching physical volumes found >>> >>> Well that's odd, I know they're there. Lets try this: >>> >>> root@end root # losetup /dev/loop0 /dev/hda >>> root@end root # losetup /dev/loop1 /dev/hdd >>> root@end root # pvscan >>> PV /dev/loop0 VG media_vg lvm2 [111.79 GB / 0 free] >>> PV /dev/loop1 VG media_vg lvm2 [186.31 GB / 0 free] >>> Total: 2 [298.10 GB] / in use: 2 [298.10 GB] / in no VG: 0 [0 ] >> >> Hi Miles, >> >> the disks hda and hdb obviously are partitioned (they are shown as=20 >> /dev/hda1 and /dev/hdb1), so don't trying to detroy these partitions,=20 >> he doesn't know what the contents of, is good behaviour of lvm, isn't=20 >> it ;-). >> >> Ciao >> Klaus >=20 >=20 > So, you're saying that although the lvm PVs are _not_ on partitions, the = > disklabel still describes some partition on the disk, so lvm is ignoring = > the disk as a whole as a possible PV? That's what it looks like, i'd guess lvm will use your whole-disk PVs if=20 you get the partition table cleared. Without this, he'd destroy=20 partitions of unknown types. Ciao Klaus --=20 Mit freundlichen Gr=EF=BF=BDssen / best regards Klaus Strebel, Dipl.-Inform. (FH), mailto:klaus.strebel@gmx.net /"\ \ / ASCII RIBBON CAMPAIGN X AGAINST HTML MAIL / \