Mapping iso image

From Linux on Power wiki

How to boot from an ISO-image

• 1. Login to VIO as padmin
• 2. Become root # oem_setup_env
• 3. Increase /opt or any other filesystem to provide space for iso-images
• 4. Put your iso image (using ftp) to /opt/iso
• 4. Create a logical volume

# mklv -y cdlv -t cdrfs rootvg 700M

• 5. Copy iso-image to the created volume. I used SUSE SLES9 SP2 CD1

# dd if=/opt/iso/SLES-9-SP-2-ppc-GM-CD1.iso of=/dev/rcdlv bs=8M

• 6. Check if you can mount it localy

# mount -v cdrfs -o ro /dev/cdlv /cdrom
# ls /cdrom
 ARCHIVES.gz                       README.pt_BR                      initrd64
 COPYING                           README.zh_CN                      install
 COPYING.de                        README.zh_TW                      installpmac
 COPYRIGHT                         SLES-LICENSE                      installpmac64
 COPYRIGHT.de                      TRANS.TBL                         linux
 ChangeLog                         boot                              ls-lR.gz
 INDEX.gz                          content                           media.1 
ISERIES64                         directory.yast                    ppc
LICENSE.TXT                       docu                              pubring.gpg
Notes                             driverupdate                      rr_moved
README                            etc                               servicepack.tar.gz
README.de                         gpg-pubkey-0dfb3188-41ed929b.asc  suse
README.es                         gpg-pubkey-15c17deb-3f9e80c9.asc  suseboot
README.fr                         gpg-pubkey-3d25d3d9-36e12d04.asc  vmlinux32
README.it                         gpg-pubkey-9c800aca-40d8063e.asc  vmlinux64
README.ja_JP                      index.html                        yaboot.chrp
README.ko                         initrd32                          yaboot.txt

# umount /cdrom

• 7. Create virtual device mapping

$ mkvdev -vdev cdlv -vadapter vhost6
vtscsi4 Available

# lsmap -all 

--------------- -------------------------------------------- ------------------
vhost6          U9124.720.100486A-V1-C9                      0x00000000
VTD                   vtscsi4
LUN                   0x8100000000000000
Backing device        cdlv
Physloc

8. Boot your client LPAR, select this device as a hard disk

IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM 
IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM 
IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM 
IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM IBM 
 
Elapsed time since release of system processors: 46131 mins 51 secs

Config file read, 148 bytes
 

  Welcome to SuSE Linux (SLES9)!

  Use  "install"     to boot the pSeries 64bit kernel
  Use  "install32"   to boot the 32bit RS/6000 kernel 

  You can pass the option "noinitrd"  to skip the installer.
  Example: install noinitrd root=/dev/sda4

Welcome to yaboot version 1.3.11.SuSE
Enter "help" to get some basic usage information
boot: 

Known problems

• I tried following setup with only one vscsi adapter and nothing more and was able to select it in SMS. As soon as a network card was added, I could only select the network card. No boot from virtualized iso image was possible.

• With network card selected I was able to boot through OF menu (press 8 for OpenFirmware menu)

0 > boot disk 
Elapsed time since release of system processors: 46479 mins 9 secs

Config file read, 148 bytes


  Welcome to SuSE Linux (SLES9)!

 Use  "install"     to boot the pSeries 64bit kernel
 Use  "install32"   to boot the 32bit RS/6000 kernel

  You can pass the option "noinitrd"  to skip the installer.
  Example: install noinitrd root=/dev/sda4

Welcome to yaboot version 1.3.11.SuSE
Enter "help" to get some basic usage information
boot: 

Also worked:

0 > boot v-scsi@30000002