I may be all wrong, but shouldn't that be dasd=302?
Best regards,
Pieter Harder
[EMAIL PROTECTED]
tel +31-73-6837133 / +31-6-47272537
>>> John White <[EMAIL PROTECTED]> 07/18/07 5:00 >>>
The following is the contents of our /etc/zipl.conf.
[EMAIL PROTECTED] network-scripts]# cat /etc/zipl.conf
[defaultboot]
default=linux
target=/boot/
[linux]
image=/boot/vmlinuz-2.6.9-55.EL
ramdisk=/boot/initrd-2.6.9-55.EL.img
parameters="root=LABEL=/"
According to (http://www.linuxvm.com/vdskdoit.html) We're supposed to
add the disk to the Linux Boot Parameter file, 'i.e. disk=302' in our
case. I added it as, "parameters="root=LABEL=/ disk=302" and it did not
make a difference. When I do a listing of /dev/dasd* there does not
show a corresponding device to run a 'mkswap' or 'mke2fs' command
against.
The 302 disk is CMS FORMAT'ted.
John
-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Rick Troth
Sent: Wednesday, July 18, 2007 5:37 AM
To: [email protected]
Subject: Re: RedHat ES 4 using VDISK
On Wed, 18 Jul 2007, Srinivasa R Chamarthy wrote:
> Can you let me know what is your /etc/zipl.conf ? And also let me know
> if you are using a CMS formatted disk. If it is a CMS formatted disk
> then you can not put swap to it. and also give me the output for
> lsdasd. It would help me in debugging.
Not exactly.
Just for clarification,
CMS FORMAT does two things: low-level format (akin to 'dasdfmt') and
high-level format (akin to 'mke2fs'). If the disk is FBA or VDSK then
CMS FORMAT silently skips the low-level formatting operation.
In general, FBA and VDSK should be usable immediately without CMS
FORMAT (and without 'dasdfmt'). You can simply 'mkswap'
or 'mke2fs' and use the whole disk. If you need partitioning, the story
changes. And if you use 'dasdfmt -l cdl' the waters get even murkier
w/r/t using "the whole disk".
But the low-level half of the CMS FORMAT operation is essential prior to
using CKD disks, unless one runs 'dasdfmt' in Linux.
*** summary ***
CKD or ECKD -- require low-level formatting
FBA, VDSK, SAN -- do not require low-level formatting
CMS FORMAT -- performs low-level and high-level formatting
'mkswap' -- performs high-level formatting for swap space and
can be run even if the disk was CMS FORMATted
'mke2fs' -- performs high-level formatting for a filesystem and
can be run even if the disk was CMS FORMATted
Partitioning schemes may throw-off the latter two.
-- R;
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