Added ?dasd_mod.dasd=0.0.150-0.0.15f? to the zipl.conf and ran zipl. These
caused massive I/O errors and I had to back out. I analyzed this problem
further and realized that I had two virtual DASD addresses mapped to this
z/VM guest, leftover from a previous Reiserfs to EXT3 conversion. I had
taken them off with the dasd_configure command months previouz. In other
words, these I/O errors were ok and made now made sense. I updated the
z/VM guest?s configuration and removed these DASD devices. I then added
updated zipl.conf as follows:
[ipl]
image = /boot/image
target = /boot/zipl
ramdisk = /boot/initrd,0x2000000
parameters = "root=/dev/disk/by-path/ccw-0.0.0150-part1
dasd_mod.dasd=0.0.0150-0.0.015f TERM=dumb"
I ran zipl and rebooted. Now everything is in its normal predictable slot
as follows:
linuxm02:~> lsdasd
Bus-ID Status Name Device Type BlkSz Size Blocks
==============================================================================
0.0.0150 active dasda 94:0 ECKD 4096 2347MB 600840
0.0.0151 active dasdb 94:4 ECKD 4096 2347MB 600840
0.0.0152 active dasdc 94:8 ECKD 4096 2347MB 600840
0.0.0153 active dasdd 94:12 ECKD 4096 2347MB 600840
0.0.0154 active dasde 94:16 ECKD 4096 2347MB 600840
0.0.015f active dasdp 94:60 ECKD 4096 589MB 150840
Thanks to everyone that responded. Enjoy your weekend.
Peter
From: Ronald van der Laan <[email protected]>
To: [email protected]
Date: 09/29/2011 04:26 PM
Subject: Re: DASD assignment different between SLES10 and SLES11
Sent by: Linux on 390 Port <[email protected]>
Peter,
Have you tried:
parameters = "root=/dev/disk/by-path/ccw-0.0.0150-part1
dasd=0.0.0150-0.0.015f TERM=dumb"
Ronald van der Laan
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