42 Chapter3
Troubleshooting
Dealing with a Boot Failure
Searching for Bootable Media
To list all devices that contain bootable media, go to the Main Menu of the Boot Console
Handler, and then type the following at the prompt:
Main Menu: Enter command > search ipl [Enter]
The search command searches all buses. The search may turn up more devices than there
are lines on the display. If you are using a text terminal, you can control the progress of the
search from the terminal’s keyboard by doing any of the following:
• To temporarily suspend the search, press [Ctrl]-[S].
• To continue the search, press [Ctrl]-[Q].
• To halt the search, press any other key.
These flow-control commands do not work with a bitmapped display, but such a display can
show more than forty lines of text, so you are unlikely to need them.
To search for devices of just one type that actually contain bootable media, go to the Main
Menu of the Boot Console Handler, and then type the following at the prompt:
Main Menu: Enter command > search ipl
device_type
[Enter]
where
device_type
is one of the following:
• fwscsi is the internal, Ultra2 Wide LVD (Low Voltage Differential) SCSI bus.
• scsi is the external SE/LVD SCSI bus.
• lan is all connections to the built-in LAN.
• ide is the built-in CD ROM drive.
• pci
n
is an optional SCSI interface in slot number
n
.
Stable Storage
Stable Storage is non-volatile memory associated with the PA-RISC processor module.
Stable Storage is used by the processor (CPU) to store device path information, the state of
the boot flags, HPMC error information, and operating system initialization data.
Boot Command Notations
The boot command supports the following two notations:
• Mnemonic
• Path number
Type help scsi or help lan for more information on the boot path parameters.
Here are examples of mnemonic notation:
• boot with no parameters selects the primary boot path in stable storage.
• boot with the alternate or alt parameter selects the alternate boot path in stable
storage.
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