If the #CP Q DASD shows the devices, but the system doesn't, do a "cat
/proc/dasd/devices" and see if they are listed there...
Did you recently (i.e. Since the previous boot) add the LVM DASD to the
system? If so, and if you did not do a "mkinitrd && zipl" of SLES 9, or edit
the zipl.conf parameter definitions to include the new DASD for SLES 8, then
you'd see this type of mess. (Believe me; I've been here several (many?)
times...)
If this is the case, you could bring up a recovery system, get things
defined and mounted, "chroot" to the crippled system and do the mkinitrd and
the zipl, either having everything in place, or removing entirely the LVM
volumes. Bring down the recovery system, and then bring up the real system,
possibly then needing to define the new dasd and then do a "vgscan".
Once all this is done, be sure to do the "mkinitrd && zipl", to be sure
everything is clean for the next reboot.
--
.~. Robert P. Nix Mayo Foundation
/V\ RO-OC-1-13 200 First Street SW
/ ( ) \ 507-284-0844 Rochester, MN 55905
^^-^^ -----
"In theory, theory and practice are the same, but
in practice, theory and practice are different."
> From: "Post, Mark K" <[EMAIL PROTECTED]>
> Reply-To: Linux on 390 Port <[email protected]>
> Date: Wed, 24 Jan 2007 13:47:24 -0500
> To: <[email protected]>
> Conversation: Lost an LVM under SLES9 64-bit ...
> Subject: Re: Lost an LVM under SLES9 64-bit ...
>
> If the system is up, and you're able to enter maintenance mode (by
> entering the root password), I would do a
> cat /proc/dasd/devices
> to see if, as Ed mentioned, your kernel "knows" about all your DASD.
>
> If not, and a "#cp q dasd" command shows them, then there's a major
> disconnect between Linux and z/VM. In this case, I don't know if a
> "chccwdev -e devicenumber" command would help or not. If it does, then
> enable the second device, and then run "vgscan". If that works, then
> "vgchange -a y books" followed by a "mount -a" command.
>
>
> Mark Post
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