The Virtualization Cookbook for SLES 10 SP2 - z/VM - IBM

Important: If the minidisks 100-102 (dasdb-dasdd) have not been formatted for Linux by
dasdfmt before this install, you should see a screen as shown in Figure 7-5 on page 112.
However, there is a known issue in RHEL 6 whereby this screen is not shown and you
don’t have the ability to format the disks through the installer. If you proceed without
formatting the disks with dasdfmt, the install process will fail later.
If this is the case, it is recommended that you perform the following steps:
► Start a second SSH session, this time logging is as root.
login as: root
Welcome to the anaconda install environment 1.2 for zSeries
► Issue the command lsdasd. The three minidisks should be dasdb, dasdc and dasdd:
# lsdasd
Bus-ID Status Name Device Type BlkSz Size Blocks
==============================================================================
0.0.0100 active dasdb 94:4 ECKD 4096 2347MB 600840
0.0.0101 active dasdc 94:8 ECKD 4096 2347MB 600840
0.0.0102 active dasdd 94:12 ECKD 4096 2347MB 600840
0.0.0300 active dasde 94:16 FBA 512 256MB 524288
0.0.0301 active dasdf 94:20 FBA 512 512MB 1048576
► Format the minidisks in parallel with the following for loop:
# for i in b c d
> do
> dasdfmt -b 4096 -y -f /dev/dasd$i &
> done
► You may need to press Enter to see the jobs in the background complete. After the for
loop completes, return to the VNC session and complete the installation.
7.1.7 Continuing the installation
► Click the button Reinitialize All when prompted to initialize the VDISK at 300 as shown in
Figure 7-6.
Figure 7-6 Re-initializing disks
Chapter 7. Installing RHEL 6 on the cloner 113