HP XC System Software Release Notes for Version 2.1

4
Installation Notes
This chapter contains notes that apply to the XC software installation process.
4.1 Notes to Read Before the Kickstart Installation Process
Read the notes in this section before starting the Kickstart installation process.
4.1.1 Prepare Previously Installed Nodes for a Reinstallation
If you are reinstalling an XC system that is already running an early, advance
version of this release, you must first prepare the nodes to network boot before
shutting down the system. This procedure is documented in Appendix H in the
HP
XC System Software Installation Guide.
4.1.2 No Hard Drives Found on Head Nodes with Serial ATA Disks with 4
GB or More Memor y
This note applies only to head nodes that contain SATA disk drives as their internal
storage devices that have 4 GB or more of system RAM.
On a head node with SATA disks with 4 GB or more of memory, no hard drives are
found during the installation process. The ata_piix driver, which is used for the
SATA drives on a number of XC platforms, is sensitive to memory mapping that
arises in systems with 4 GB or more of RAM.
To work around this problem, include mem=2000mb on the boot command line
when starting the installation, as follows:
# linux mem=2000mb ks=cdrom:/ks.cfg
4.1.3 Installation Supported on SAN on CP6000 Systems But Not on
CP4000 Systems
This release can be installed on a SAN device only on a CP6000 system. The
procedure is described in Section 11.2.
On CP4000 systems, installation is supported only on disks local to the head node.
If you have a SAN disk connected to the head node on a CP4000 system, examine
installation messages closely to determine whether they are related to the local
disk on which you are installing. Be sure to select No to partition-related questions
presented by the installation program.
After the installation Kickstart process has completed and the new kernel has been
booted, normal usage of a SAN is supported.
Installation Notes 4-1