Support Notes for Red Hat Enterprise Linux AS v.4.6 for HP Integrity Servers

22. System panics may occur on Integrity servers running Linux that have fibre channel (FC)
storage arrays directly connected.
If you plan to connect FC storage to Integrity Servers running Linux, you must connect
through a FC switch. For the BL860c Blade servers, customers must use either the FC switch
module (AE370A/AE371A/AE372A) or an external FC switch.
23. After installing the operating system, if a message similar to the following is displayed, you
will need to take action.
Loading.: Red Hat Enterprise Linux Load of Red Hat Enterprise Linux
failed: Not Found Press any key to continue
To resolve this problem, enter the following commands:
# reconnect -r
# map -r
Then reboot. This can be done by exiting the shell (using the exit command) and reselecting
the EFI boot menu entry.
24. When Linux boots on an mid-range/high-end (cellular) IA-64 machine with discontiguous
memory, a cell may end up in a state where it has too little contiguous memory available,
and could cause an MCA.
If you experience this issue, try one of the following methods to resolve the problem:
a. Try changing the memory configuration so that the memory in each cell is equal.
b. Try changing the CLM (Cell Local Memory) setting to increase the size of contiguous
memory.
If the system was working previously, try the pdt command at the EFI prompt. If there are
PDT entries, consider replacing the bad memory.
Known Issues 11