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30.2.3. Configuring for Power Systems Servers

  1. If tftp-server is not yet installed, run yum install tftp-server.
  2. In the tftp-server config file at /etc/xinetd.d/tftp, change the disabled parameter from yes to no.
  3. Configure your DHCP server to use the boot images packaged with yaboot. (If you do not have a DHCP server installed, refer to the DHCP Servers chapter in the Red Hat Enterprise Linux Deployment Guide.)
    A sample configuration in /etc/dhcp/dhcpd.conf might look like: 
              host bonn {
                filename "yaboot";
                next-server             10.32.5.1;
                hardware ethernet 00:0e:91:51:6a:26;
                fixed-address 10.32.5.144;
        }
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  4. You now need the yaboot binary file from the yaboot package in the ISO image file. To access it, run the following commands as root: 
    mkdir /publicly_available_directory/yaboot-unpack
mount -t iso9660 /path_to_image/name_of_image.iso /mount_point -o loop,ro
cp -pr /mount_point/Packages/yaboot-version.ppc.rpm /publicly_available_directory/yaboot-unpack
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    Extract the package: 
    cd /publicly_available_directory/yaboot-unpack
rpm2cpio yaboot-version.ppc.rpm | cpio -dimv
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  5. Create a yaboot directory within tftpboot and copy the yaboot binary file into it: 
    mkdir /var/lib/tftpboot/yaboot
cp publicly_available_directory/yaboot-unpack/usr/lib/yaboot/yaboot /var/lib/tftpboot/yaboot
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  6. Add a config file named yaboot.conf to this directory. A sample config file might look like: 
    init-message = "\nWelcome to the Red Hat Enterprise Linux 6 installer!\n\n"
timeout=60
default=rhel6
image=/rhel6/vmlinuz-RHEL6
        label=linux
        alias=rhel6
        initrd=/rhel6/initrd-RHEL6.img
        append="repo=http://10.32.5.1/mnt/archive/redhat/released/RHEL-6/6.x/Server/ppc64/os/"
        read-only
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    For instructions on how to specify the installation source, refer to Section 7.1.3, “Additional Boot Options”
  7. Copy the boot images from the extracted ISO into your tftp root directory: 
    cp /mount_point/images/ppc/ppc64/vmlinuz /var/lib/tftpboot/yaboot/rhel6/vmlinuz-RHEL6
cp /mount_point/images/ppc/ppc64/initrd.img /var/lib/tftpboot/yaboot/rhel6/initrd-RHEL6.img
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  8. Clean up by removing the yaboot-unpack directory and unmounting the ISO: 
    rm -rf /publicly_available_directory/yaboot-unpack
umount /mount_point
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  9. Boot the client system, and select the network device as your boot device when prompted.
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