Support Notes for Red Hat Enterprise Linux AS v.4 Update 3 for the Intel Itanium Processor on HP Integrity Servers

entry on the Red Hat Enterprise Linux AS v. 3 partition because v. 3 and v.4 use the same name for
the boot manager entry.
There is no rename function, so from the Boot Option Maintenance Menu in the EFI Boot Manager,
add another boot entry with the same boot parameters as the existing Red Hat Enterprise Linux AS v.
3 entry, but give it a different name.
6. If you are transitioning to Red Hat Enterprise Linux AS. v 4, note that the load order of storage and
networking drivers in this software release is the reverse of the order in Red Hat Enterprise Linux AS v.
3 and v. 2.1. The numbers on the device file names for your NICs will appear in the opposite order
to which you have become accustomed to seeing them.
7. To obtain the drivers that HP supports for the A6826A, A7538A, AD379A, AD167A, or AD168A
cards, respectively:
a. From the page at http://www.hp.com, click on the "Driver Downloads" link.
b. Click the radio button preceding "Download drivers and software" on the Software & Driver
Downloads page, type A6826A ,A7538A AD379A, A167A, or A168A in the text box, and press
Enter.
c. Click "Red Hat Enterprise Linux 4 (Itanium)" under the "select operating system" heading on the
specify operating system page.
d. Scroll down the download drivers and software page for your specified card, and click the
download button for the required driver.
8. SCSI errors and resets may cause system failures.
SCSI errors and resets for any reason may cause system failures. For example, if your disks have a
problem such as a parity or disk error that causes a SCSI reset, the system may fail. Combining a
Seagate drive with the ds2100 disk carrier causes electrical problems on the SCSI bus and subsequent
reset attempts that also result in system failure. Do not use Seagate drives with this disk carrier.
9. If using an HP Procurve 4108gl switch with a heavily loaded system, you may experience intermittent
data truncation with FTP transfers through the network. To avoid this problem:
a. Connect to the HP Procurve 4108gl switch via telnet or serial console and login.
b. From the switch command line interface, type config and press Enter.
c. Type no int all lacp and press Enter.
10. The Red Hat Enterprise Linux AS v. 4 kernel supports maximum memory of 256 GB, which is also
supported by HP.
11. No support for uncertified .rpm packages.
If you add uncertified .rpm packages to the operating system, the operating system will not be supported
by Red Hat. Red Hat supports only .rpm packages bundled in supported Linux distributions for Integrity
servers and official Red Hat Updates for those distributions. HP supports the Linux software it distributes.
12. Red Hat Enterprise Linux AS v. 4 Update 3 does not ship or install a kernel-source rpm with the binary
installation CDs or DVDs. If you want to modify or view the kernel configuration, you must extract
kernel-2.6.9-11.EL.src.rpm from the source .rpm packages. Refer to the Red Hat Enterprise
Linux AS v. 4 Release Notes for instructions.
NOTE These instructions are in the file RELEASE-NOTES, but not in the file RELEASE-NOTES-U1.
13. 32-bit emulation is not automatically installed with Red Hat Enterprise Linux AS v. 4. To obtain this
functionality, install the ia32el package from the Intel Itanium Extras CD. Then install any additional
compatibility binaries you need from the 32-bit Compatibility Layer Binaries CD. Refer to the Red Hat
Enterprise Linux AS v. 4 Release Notes for instructions.
14. HP supports factory recovery to Fibre Channel Storage. See
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00166110/c00166110.pdf to
access a pdf file with more information.
15. Correctable platform events such as single-bit memory errors are routinely logged into NVRAM. To
ensure errors are logged into the /var/log file, configure the salinfod file to start at boot, executing
the following commands as root:
Known Issues 7