IBM RS6000 - 7026 - H70, Service Manual

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this would mean that information in non-volatile storage could have been lost, as
would happen if the battery had been removed. In order to recreate this value issue
the bootlist command under AIX with the appropriate parameters as to the location of
the operating system in a particular Hard disk. Please see the explanation of the
bootlist command in your AIX documentation.
The Software Default option, if supported by the operating system, lets you select the
default operating system to start the system. This option may not be supported by
all operating systems.
The Install From option produces a list of devices, for example the CD-ROM, where
the operating system is installed from. You select one of the devices and the system
searches the device for an operating system to install and if supported by the
operating system in that device, the name of the operating system displays.
The Select Boot Device option provides a list of devices that can be selected to be
stored on the boot list. Up to 5 devices are supported.
The OK Prompt procvides access to the Open Firmware command prompt. The
Open Firmware command prompt is used for debug purposes, and device driver
development. Information about the commands that are available in the IEEE
Standard 1275.
The Multiboot Start option toggles between OFF and ON and selects if the Multiboot
menu invokes automatically on startup or not.
Boot
This selection enables you to view and change the custom boot list (the sequence in
which devices are searched for operating system startup code).
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Service Guide