Support Notes for SUSE LINUX Enterprise Server 9 Service Pack 3 for the Intel Itanium 2 Processor Family

image=vmlinuz-2.4.18-e.25
label=linux-up
initrd=initrd-2.4.18-e.25.img
read-only
root="LABEL=/"
append="console=ttyS0,115200n8 hdd=ide-scsi"
==== sample elilo.conf for mounting root partition by label ====
e. Manually verify LABEL"=/" entry is in the /etc/fstab.
===== sample fstab for mounting root device by label =====
LABEL=/ / ext2 defaults,errors=remount-ro 1 1
/dev/hda1 /boot/efi vfat defaults 0 0
none /dev/pts devpts gid=5,mode=620 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
/dev/hda3 swap swap defaults 0 0
/dev/hda5 /home ext2 defaults,errors=remount-ro 0 2
/dev/cdrom /mnt/cdrom iso9660 noauto,owner,kudzu,ro 0 0
/dev/cdrom1 /mnt/cdrom1 iso9660 noauto,owner,kudzu,ro 0 0
===== sample fstab for mounting root device by label =====
5. If you want rx7620 or rx8620 server hardware to power off when the shutdown -h comand or
poweroff command is issued, run the acpiconfig enable softpowerdown command from the
EFI shell and reset the nPartition to make the ACPI configuration take effect.
The normal behavior on rx7620 and rx8620 servers is for an nPartition to be made inactive (all cells
are in a boot-is-blocked state) when shutdown -h or poweroff is issued from the SLES command
line. This behavior is established with the acpiconfig disable powerdown setting, which is the
normal setting for the single-pci-domain ACPI configuration.
On HP Integrity Superdome servers, an nPartition is always made inactive when halted from the operating
system (for example, after shutdown -h), and this behavior cannot be changed.
When softpowerdown is enabled on an rx7620 or rx8620 server, if one nPartition is defined in the
server then halting the operating system powers off the server cabinet (including all cells and I/O
chassis). On an rx7620 or rx8620 server with multiple nPartitions, halting the operating system from
an nPartition with softpowerdown enabled causes only the resources on the local nPartition to be
powered off.
You can run the acpiconfig command with no arguments to check the current setting and the
softpowerdown setting; however, softpowerdown information is displayed only when different
from normal behavior.
To power on hardware that has been powered off, use the PE command at the management processor
command menu. To make an inactive nPartition active, use the management processor BO command
to boot the nPartition past the boot-is-blocked state.
6. HP supports up to two I/O chassis per nPartition on rx7620, rx8620, and Integrity Superdome servers
running SLES 9.
7. SCSI errors and resets for any reason 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 will 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.
8. This issue affects Linux running on the following systems: rx1600, rx1620, rx2600, rx2620, rx4640,
rx7620, rx8620, and Superdome.
The Management Processor UART on these systems does not supply the Carrier Detect signal. This
causes applications to hang when opening the UART device, waiting for Carrier Detect, unless they
use the O_NDELAY or O_NONBLOCK flag.
For example, echo foo > /dev/ttyS0 hangs.
This is usually not a problem because /dev/ttyS0 is usually used as a console, the agetty process
opens it with O_NONBLOCK, and processes spawned by agetty generally inherit the already-opened
device.
8 Support Notes for SUSE LINUX Enterprise Server 9 Service Pack 3 for the Intel Itanium Processor Family