User guide

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drive cntlr boot to ROM
This screen is accessed when the hard disk master boot program is unable boot a valid boot partition,
because: '
1. A boot command string was keyed whose value was either an M, an m, or an invalid partition number,
or a valid partition number whose category code is not appropriate for booting; or
2. The boot partition number was defaulted to the switches on the SASI interface board, which contained
either 15, or a partition number whose category code is not appropriate for booting, which is the usual
reason for it to appear.
The Perform boot function key (#6) causes the partition specified in the partition to boot: user input field
to be booted if that partition contains a bootable operating system.
Lastly, the Return to ROM function key (#8) returns control to the computer's boot ROM.