You don't even need the t/v disk. The dasd=xxx sets up the slots
and if you don't have a "device" attached there is still a dasda1
slot present. That is another advantage of VM!
|--------+---------------------------->
| | "McKown, John" |
| | <[EMAIL PROTECTED]|
| | nsctr.com> |
| | Sent by: Linux on |
| | 390 Port |
| | <[EMAIL PROTECTED]|
| | ST.EDU> |
| | |
| | |
| | 03/25/2005 09:34 |
| | AM |
| | Please respond to |
| | Linux on 390 Port |
| | |
|--------+---------------------------->
>---------------------------------------------------------------------------------------------------------------------------|
|
|
| To: [email protected]
|
| cc:
|
| Subject: Re: Removing a volume from your system....
|
>---------------------------------------------------------------------------------------------------------------------------|
Well, this is just me. I would not remove 0200 at all. Instead, I would
define it as a V-DISK or a T-DISK and make it small. I mean, you're not
going to use it, so just have a "place holder" for address 0200
MDISK 0200 V-DISK 1
or
MDISK 0200 T-DISK 1
--
John McKown
Senior Systems Programmer
UICI Insurance Center
Information Technology
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> -----Original Message-----
> From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On
> Behalf Of James Melin
> Sent: Friday, March 25, 2005 9:23 AM
> To: [email protected]
> Subject: Removing a volume from your system....
>
>
> Hey gang... just a little fuzzy on the correct way to accomplish this:
>
> I have a system with a teeny swap volume and a larger swap
> volume. The VM
> guys wants me to give him the mod-3 devices I am using. Since
> I can have
> him give me mini-disks for swap elsewhere I'm find with that, but the
> larger swap volume is sufficient at the moment.
>
> What I have in zipl.conf:
>
> # Generated by YaST2
> [defaultboot]
> default=ipl
>
> [ipl]
> target=/boot/zipl
> image=/boot/kernel/image
> ramdisk=/boot/initrd
> parameters="dasd=200-205,210 root=/dev/dasdb1"
> [dumpdasd]
> target=/boot/zipl
> dumpto=/dev/dasd??
>
> [dumptape]
> target=/boot/zipl
> dumpto=/dev/rtibm0
>
> I want to remove device 200 from the system... Easy enough,
> take it out of
> the parameters= line as follows:
>
> parameters="dasd=201-205,210 root=/dev/dasdb1" Now of course
> after IPL
> what was /dev/dasda1 (device 200) is gone, so /dev/dasdb1 has become
> /dev/dasda1 as of the next IPL.
>
> That said, for the purposes of running the zipl prior to
> shutting down the
> system and losing the device, do I change the
> root=/dev/dasdb1 parameter to
> root=/dev/dasda1? I'm confused as to whether that points to where the
> system should find its root volume at IPL time or if it
> points to where
> zipl should write the bootstrap when zipl is run....
>
> I know to modify fstab before I IPL - no worries there. I've
> just never
> removed dasd 'higher up the food chain' than where I have my
> IPL device
> before and I want to make sure I don't screw myself.
>
> Thanks!
>
> -J
>
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