Anaconda doesn't create a new PPC PRep Boot partition on systems with existing PReP partitions on other disks

Updated -

The following issue applies to IBM Power Systems only, and is also documented in the RHEL 6 Technical Notes.

anaconda will not create a new PReP boot partition on the root disk when performing a new Red Hat Enterprise Linux 6 installation on a system that contains existing PReP Boot partitions that need to be preserved. Consequently, the Power SMS boot manager will be unable to boot the new Red Hat Enterprise Linux 6 installation.

To work around this issue:

  1. Use the fdisk utility to temporariy change the partion type from type 41 'PReP Boot' to type 83 'Linux' for all existing Linux installations on the system.
  2. Perform the Red Hat Enterprise Linux 6 installation. During installation, a new PReP Boot partition will be created on the Red Hat Enterprise Linux 6 root disk.
  3. Post-installation, once the new Red Hat Enterprise Linux 6 installation is up and running, use the fdisk utility to restore all changed partition types to type 41 'PReP Boot'.

This issue is documented in the RHEL 6 Technical Notes, and is represented by Red Hat Bugzilla # 625831.

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