[linux-lvm] Logical Volume disappears

[linux-lvm] Logical Volume disappears

[Wolfe, Gordon W]

> I'm having a very strange problem.  Perhaps you guys can help me.
>  
> 
> I needed to make a public repository for the contents of five CD's, so I
> set up a Linux server using SuSE 2.2.16 on S/390 under z/VM.  For five
> CD's, I figured two volumes ought to hold the contents.  An rpm query
> shows lvm-0.8-157, which is what came with the SuSe distribution.
> 
> I added two 3390-3 full-pack volumes to Linux and did a dasdfmt on them.
> I went into YAST and created a logical volume group "vgcd" and a logical
> volume "lvcd" using these two volumes.
> I did a mke2fs on the logical volume /dev/vgcd/lvcd
> I was able to mount /dev/vgcd/lvcd as /mnt and was able to do a "df' and
> see them and copy some files to them
> 
> So far, so good.  Everything looking just fine.
> 
> Now, the wierd part:
> I manually umounted /dev/vgcd/lvcd, shut down and rebooted Linux.
> After the reboot, the device /dev/vgcd/lvcd does not exist.
> vgscan says "vgscan -- no volume groups found"
> pvscan says "pvscan -- no valid physical volumes found"
> vgck says "vgck -- no volume groups found"
> pvdisplay /dev/vgcd/lvcd says "invalid physical volume name
> "/dev/vgcd/lvcd"
> ls /dev/lvcd says "No such file or directory"
> If I go back into YAST to do it all over, it says I can't create volume
> group "vgcd" because it already exists.  But it doesn't show up in the
> list of volume groups.
> 
> 
> Can any of you point me in the right direction to see what the problem is?
> 
> 
"Never trust any computer you can lift."
Gordon Wolfe, Ph.D. (425)865-5940
VM Technical Services, The Boeing Company

Re: [linux-lvm] Logical Volume disappears

[Andreas Dilger]

On Feb 07, 2002  10:20 -0800, Wolfe, Gordon W wrote:
> I needed to make a public repository for the contents of five CD's, so I
> set up a Linux server using SuSE 2.2.16 on S/390 under z/VM.  For five
> CD's, I figured two volumes ought to hold the contents.  An rpm query
> shows lvm-0.8-157, which is what came with the SuSe distribution.

OK, well lvm-0.8 is _very_ old and undoubtably has a _huge_ number of
bugs.  You should be able to use the recent LVM version on 2.2 kernels
still.

> > I manually umounted /dev/vgcd/lvcd, shut down and rebooted Linux.
> After the reboot, the device /dev/vgcd/lvcd does not exist.
> vgscan says "vgscan -- no volume groups found"
> pvscan says "pvscan -- no valid physical volumes found"

You probably need to add the names of the DASD devices to the list
that LVM searches.

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

Re: [linux-lvm] Logical Volume disappears

[Heinz J . Mauelshagen]

In case /dev/vgcd/ still exists, "rm -rf" it and retry.

On Thu, Feb 07, 2002 at 10:20:28AM -0800, Wolfe, Gordon W wrote:
> > I'm having a very strange problem.  Perhaps you guys can help me.
> >  
> > 
> > I needed to make a public repository for the contents of five CD's, so I
> > set up a Linux server using SuSE 2.2.16 on S/390 under z/VM.  For five
> > CD's, I figured two volumes ought to hold the contents.  An rpm query
> > shows lvm-0.8-157, which is what came with the SuSe distribution.
> > 
> > I added two 3390-3 full-pack volumes to Linux and did a dasdfmt on them.
> > I went into YAST and created a logical volume group "vgcd" and a logical
> > volume "lvcd" using these two volumes.
> > I did a mke2fs on the logical volume /dev/vgcd/lvcd
> > I was able to mount /dev/vgcd/lvcd as /mnt and was able to do a "df' and
> > see them and copy some files to them
> > 
> > So far, so good.  Everything looking just fine.
> > 
> > Now, the wierd part:
> > I manually umounted /dev/vgcd/lvcd, shut down and rebooted Linux.
> > After the reboot, the device /dev/vgcd/lvcd does not exist.
> > vgscan says "vgscan -- no volume groups found"
> > pvscan says "pvscan -- no valid physical volumes found"
> > vgck says "vgck -- no volume groups found"
> > pvdisplay /dev/vgcd/lvcd says "invalid physical volume name
> > "/dev/vgcd/lvcd"
> > ls /dev/lvcd says "No such file or directory"
> > If I go back into YAST to do it all over, it says I can't create volume
> > group "vgcd" because it already exists.  But it doesn't show up in the
> > list of volume groups.
> > 
> > 
> > Can any of you point me in the right direction to see what the problem is?
> > 
> > 
> "Never trust any computer you can lift."
> Gordon Wolfe, Ph.D. (425)865-5940
> VM Technical Services, The Boeing Company
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html

-- 

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] Logical Volume disappears

[Heinz J . Mauelshagen]

On Thu, Feb 07, 2002 at 11:58:36AM -0700, Andreas Dilger wrote:
> On Feb 07, 2002  10:20 -0800, Wolfe, Gordon W wrote:
> > I needed to make a public repository for the contents of five CD's, so I
> > set up a Linux server using SuSE 2.2.16 on S/390 under z/VM.  For five
> > CD's, I figured two volumes ought to hold the contents.  An rpm query
> > shows lvm-0.8-157, which is what came with the SuSe distribution.
> 
> OK, well lvm-0.8 is _very_ old and undoubtably has a _huge_ number of
> bugs.  You should be able to use the recent LVM version on 2.2 kernels
> still.

That's true, but this should at least work.

> 
> > > I manually umounted /dev/vgcd/lvcd, shut down and rebooted Linux.
> > After the reboot, the device /dev/vgcd/lvcd does not exist.
> > vgscan says "vgscan -- no volume groups found"
> > pvscan says "pvscan -- no valid physical volumes found"
> 
> You probably need to add the names of the DASD devices to the list
> that LVM searches.

SuSE's S/390 Linux supports them.

> 
> Cheers, Andreas
> --
> Andreas Dilger
> http://sourceforge.net/projects/ext2resize/
> http://www-mddsp.enel.ucalgary.ca/People/adilger/
> 
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html

-- 

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] Logical Volume disappears

['Andreas Dilger']

On Feb 07, 2002  12:59 -0800, Wolfe, Gordon W wrote:
> That's the whole problem.  The CD's I need to have on line are the new SuSE
> Linux SLES7 which has the new LVM on it.  I can't install it until I get the
> data on the CDs mounted where I can use it, which means I need LVM first.

Well, rather than configring your DASD to be logical volumes, then copying
CD images there, you could just create 4 minidisks, copy the CD images into
the raw devices, and mount them directly.

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