[linux-lvm] pvcreate error

[linux-lvm] pvcreate error

[richard turner]

i am trying to create a pv on an entire disk /dev/hdb with the following
command:
pvcreate -ff -y /dev/hdb

it returns the following error:
pvcreate --device "/dev/hdb" has a partition table

fdisk, sfdisk and all other methods prove there is not a partition table
on /dev/hdb

using lvm 1.0.1 with mandrake8.2 kernel 2.4.18-6

what is causing pvcreate to think i have a partition table on /dev/hdb?

Re: [linux-lvm] pvcreate error

[Heinz J . Mauelshagen]

On Fri, Jan 03, 2003 at 03:48:31PM -0800, richard turner wrote:
> i am trying to create a pv on an entire disk /dev/hdb with the following
> command:
> pvcreate -ff -y /dev/hdb
> 
> it returns the following error:
> pvcreate --device "/dev/hdb" has a partition table
> 
> fdisk, sfdisk and all other methods prove there is not a partition table
> on /dev/hdb
> 
> using lvm 1.0.1 with mandrake8.2 kernel 2.4.18-6
> 
> what is causing pvcreate to think i have a partition table on /dev/hdb?

The identifier at the end of the first sector.

dd if=/dev/zero of=/dev/hdb bs=512 count=1

should make pvcreate happy ;)

> 
> 
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@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@Sistina.com                           +49 2626 141200
                                                       FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Re: [linux-lvm] pvcreate error

[richard turner]

i have tried that with no success.
dd if=/dev/zero of=/dev/hdb bs=512 count=1
blockdev --rereadpt /dev/hdb

is there a patch i dont know about for devfs? or kernel 2.4.18?

On Mon, 2003-01-06 at 15:06, Heinz J . Mauelshagen wrote:
> On Fri, Jan 03, 2003 at 03:48:31PM -0800, richard turner wrote:
> > i am trying to create a pv on an entire disk /dev/hdb with the following
> > command:
> > pvcreate -ff -y /dev/hdb
> > 
> > it returns the following error:
> > pvcreate --device "/dev/hdb" has a partition table
> > 
> > fdisk, sfdisk and all other methods prove there is not a partition table
> > on /dev/hdb
> > 
> > using lvm 1.0.1 with mandrake8.2 kernel 2.4.18-6
> > 
> > what is causing pvcreate to think i have a partition table on /dev/hdb?
> 
> The identifier at the end of the first sector.
> 
> dd if=/dev/zero of=/dev/hdb bs=512 count=1
> 
> should make pvcreate happy ;)
> 
> > 
> > 
> > 
> > _______________________________________________
> > linux-lvm mailing list
> > linux-lvm@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@Sistina.com                           +49 2626 141200
>                                                        FAX 924446
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

Re: [linux-lvm] pvcreate error

[richard turner]

I have some additional information that hopefully someone will be
familiar with and provide some assistance.

The kernel I am using 2.4.18-6 was created using devfs. However, when I
am trying to create a physical volume on /dev/hdb devfs is not active.
My /proc/partitions is as follows:

22   0      15972   hdc
 3   0   20066251   ide/host0/bus0/target0/lun0/disc
 3   1     313267   ide/host0/bus0/target0/lun0/part1
 3   2     265072   ide/host0/bus0/target0/lun0/part2
 3   3          1   ide/host0/bus0/target0/lun0/part3
 3   5    3076416   ide/host0/bus0/target0/lun0/part5
 3  64   20066251   ide/host0/bus0/target1/lun0/disc

is it the case that pvcreate is interpreting "disc" as a partition
because it does not detect a traditional "hdb" and therefore cannot
create the physical volume? is devfs required to be active for pvcreate
to locate the disc according to its naming convention?
 
On Mon, 2003-01-06 at 16:05, richard turner wrote:
> i have tried that with no success.
> dd if=/dev/zero of=/dev/hdb bs=512 count=1
> blockdev --rereadpt /dev/hdb
> 
> is there a patch i dont know about for devfs? or kernel 2.4.18?
> 
> On Mon, 2003-01-06 at 15:06, Heinz J . Mauelshagen wrote:
> > On Fri, Jan 03, 2003 at 03:48:31PM -0800, richard turner wrote:
> > > i am trying to create a pv on an entire disk /dev/hdb with the following
> > > command:
> > > pvcreate -ff -y /dev/hdb
> > > 
> > > it returns the following error:
> > > pvcreate --device "/dev/hdb" has a partition table
> > > 
> > > fdisk, sfdisk and all other methods prove there is not a partition table
> > > on /dev/hdb
> > > 
> > > using lvm 1.0.1 with mandrake8.2 kernel 2.4.18-6
> > > 
> > > what is causing pvcreate to think i have a partition table on /dev/hdb?
> > 
> > The identifier at the end of the first sector.
> > 
> > dd if=/dev/zero of=/dev/hdb bs=512 count=1
> > 
> > should make pvcreate happy ;)
> > 
> > > 
> > > 
> > > 
> > > _______________________________________________
> > > linux-lvm mailing list
> > > linux-lvm@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@Sistina.com                           +49 2626 141200
> >                                                        FAX 924446
> > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> > 
> > _______________________________________________
> > linux-lvm mailing list
> > linux-lvm@sistina.com
> > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
> 
> 
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

[linux-lvm] pvcreate error

[richard turner]

i am trying to create a physical volume on /dev/hdb using:
pvcreate -ff -y /dev/hdb

the following error is generated:
pvcreate -- device "/dev/hdb" has a partition table

my understanding is that pvcreate looks in /proc/partitions for
partition information. currently /proc/partitions does not show any
partitions for hdb (target1). i have tried:
dd if=/dev/zero of=/dev/hdb bs=1k count=1
blockdev --rereadpt /dev/hdb

nothing indicates that there is a partition table on /dev/hdb, however
pvcreate is still detecting one.

i am using lvm 1.0.1. is this a known issue with version 1.0.1? is there
something i am missing that pvcreate is detecting?

[linux-lvm] pvcreate error

[Csuk, Ferenc]

[-- Attachment #1: Type: text/plain, Size: 943 bytes --]

Dear All,

I just installed a new system and I installed the latest 2.4.16 kernel
and the latest LVM tool 1.0.1-rc4. I established a software RAID-5
device(md) and wanted to create a logical volume group on it(as I did
with 2.4.7 kernel on another system). However, when I issued the command
I got the following error:

# pvcreate -v /dev/md2
pvcreate -- locking logical volume manager
> pvcreate -- checking physical volume name "/dev/md2"
> pvcreate -- getting physical volume size
> pvcreate -- checking partition type
> pvcreate -- creating new physical volume
> pvcreate -- setting up physical volume for /dev/md7 with 0 sectors
> pvcreate -- ERROR "parameter error" setting up  physical volume
"/dev/md2"

I checked the archives where I saw suggestion to patch the LVM tool, but
I don´t think that is related to the latest version.

What is the problem? Should I downgrade to 2.4.7?

Thanks in advance,
Ferenc


[-- Attachment #2: Type: text/html, Size: 1871 bytes --]

Re: [linux-lvm] pvcreate error

[Andreas Dilger]

On Jan 14, 2002  20:57 +0100, Csuk, Ferenc wrote:
> I just installed a new system and I installed the latest 2.4.16 kernel
> and the latest LVM tool 1.0.1-rc4. I established a software RAID-5
> device(md) and wanted to create a logical volume group on it(as I did
> with 2.4.7 kernel on another system). However, when I issued the command
> I got the following error:
> 
> # pvcreate -v /dev/md2
> pvcreate -- locking logical volume manager
> > pvcreate -- checking physical volume name "/dev/md2"
> > pvcreate -- getting physical volume size
> > pvcreate -- checking partition type
> > pvcreate -- creating new physical volume
> > pvcreate -- setting up physical volume for /dev/md7 with 0 sectors
                                               ^^^^^^^^      ^^^^^^^^^
> > pvcreate -- ERROR "parameter error" setting up  physical volume
> "/dev/md2"

Something strange going on there.  We have md2 => md7 and zero size.
Maybe the output of "pvcreate -v -d /dev/md2" would help.

> I checked the archives where I saw suggestion to patch the LVM tool, but
> I don´t think that is related to the latest version.

Yes, there were problems with MD devices and LVM, but I don't know when
the fix went in.  Note that there _should_ be a 1.0.1 release of the
tools also.

Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://www-mddsp.enel.ucalgary.ca/People/adilger/

RE: [linux-lvm] pvcreate error

[Yves Alloyer]

Hi Csuk,
1.0.1rc4 is not the latest. I ran into the same problem because when it sees
an md device, no matter the raid level, it thinks the device has a partition
table which is wrong. These device are always used as a whole.
To fix the problem you may either upgrade to 1.0.1 or just have a look at
the thread
"[linux-lvm] pvcreate fails on a software RAID metadisk". It describes a
patch from Luca Berra and me:
--- tools/lib/lvm_check_partitioned_dev.c.bluca	Thu Aug 23 07:51:53 2001
+++ tools/lib/lvm_check_partitioned_dev.c	Fri Oct  5 21:18:51 2001
@@ -55,6 +55,8 @@
 	switch (lvm_get_device_type(st_rdev)) {
 	case LVM_DEVICE_TYPE_INVALID:
 	    break;
+	case LVM_DEVICE_TYPE_MD:
+	    break;
 	default:
 	    ret = TRUE;
 	}

Yves
-----Original Message-----
From: linux-lvm-admin@sistina.com [mailto:linux-lvm-admin@sistina.com]On
Behalf Of Csuk, Ferenc
Sent: Monday, January 14, 2002 9:32 PM
To: linux-lvm@sistina.com
Subject: [linux-lvm] pvcreate error


Dear All,
I made a typing error in my question. Each line of the error message is
related to /dev/md2 instead of /dev/md7.
I just installed a new system and I installed the latest 2.4.16 kernel and
the latest LVM tool 1.0.1-rc4. I established a software RAID-5 device(md)
and wanted to create a logical volume group on it(as I did with 2.4.7 kernel
on another system). However, when I issued the command I got the following
error:
# pvcreate -v /dev/md2
pvcreate -- locking logical volume manager
> pvcreate -- checking physical volume name "/dev/md2"
> pvcreate -- getting physical volume size
> pvcreate -- checking partition type
> pvcreate -- creating new physical volume
> pvcreate -- setting up physical volume for /dev/md2 with 0 sectors
> pvcreate -- ERROR "parameter error" setting up  physical volume "/dev/md2"
I checked the archives where I saw suggestion to patch the LVM tool, but I
don�t think that is related to the latest version.
What is the problem? Should I downgrade to 2.4.7?
Thanks in advance,
Ferenc