1. Log in to the system running YDEL 6.0.
2. Run the following command to install the yum configuration utility:

   rpm -Uvh http://us.fixstars.com/support/solutions/rpms/configure-ydlnet-cli-1.0-0.ydl6.1.ppc.rpm

3. Configure yum using the yum configuration utility. Refer to Configuring yum for more information.
4. If you have openib-diags installed, you must remove these packages by running the following command:

   yum remove openib-diags-1.1.0-5*

5. If you have ppu-binutils installed, you must remove these packages by running the following command:

   yum remove ppu-binutils

6. Remove the existing yum cache by running the following command:

   yum clean all

7. Update to YDEL 6.1 by running the following command:

   yum update

8. The update will take a while.
9. For NFS root users only: This update will install a new kernel. Copy the new boot image to your tftp server.
   1. Once the installation is complete, a file will be placed within the /{MAC ADDRESS}/boot directory within the specified NFS path of the new YDEL installation on the Server. For example, if the NFS directory was /srv/nfsroot, the file will be placed in /srv/nfsroot/{MAC ADDRESS}/boot.
      The file will be named ydel-nfsroot-*.img (where the * denotes the current kernel version.
   2. Copy this file to the /tftpboot directory on the NFS host. The file must be renamed "ydel61.img". This one image file will be used for all nfsroot machines.
   3. Restart XINETD:

      service xinetd restart

10. Reboot each system running YDEL to begin using the new kernel.
11. Optionally, to install the InfiniBand packages, run the following command:

    yum install infiniband-diags-1.4.4_20081207-1.ofed1.4

12. If you removed the ppu-binutils packages and wish to re-install, run the following command:

    yum install ppu-binutils

This HOWTO was prepared by Aaron Johnson and Bonnie Gosler, Fixstars Solutions, Inc.