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Configuring the PPCBug Parameters
This is the listing of boot devices displayed if the Autoboot Scan option is enabled. If you modify
the list, follow the format shown above (uppercase letters, using forward slash as separator).
Auto Boot Controller LUN = 00?
Refer to the PPCBug Firmware Package User's Manual for a listing of disk/tape controller
modules currently supported by PPCBug. (Default = $00)
Auto Boot Device LUN = 00?
Auto Boot Partition Number = 00?
Which disk "partition" is to be booted, as specified in the PowerPC Reference Platform (PRP)
specification. If set to zero, the firmware will search the partitions in order (1, 2, 3, 4) until it finds
the first "bootable" partition. That is then the partition that will be booted. Other acceptable
values are 1, 2, 3 or 4. In these four cases, the partition specified will be booted without
searching.
Auto Boot Abort Delay = 7?
The time in seconds that the Autoboot sequence will delay before starting the boot. The
purpose for the delay is to allow you the option of stopping the boot by use of the BREAK key.
The time value is from 0-255 seconds. (Default = 7 seconds)
Auto Boot Default String [NULL for an empty string] =?
You may specify a string (filename) which is passed on to the code being booted. The maximum
length of this string is 16 characters. (Default = null string)
ROM Boot Enable [Y/N] = N?
Y
The ROMboot function is enabled.
N
The ROMboot function is disabled. (Default)
ROM Boot at power-up only [Y/N] = Y?
Y
ROMboot is attempted at power-up only. (Default)
N
ROMboot is attempted at any reset.
ROM Boot Abort Delay = 5?
The time in seconds that the ROMboot sequence will delay before starting the boot. The
purpose for the delay is to allow you the option of stopping the boot by use of the BREAK key.
The time value is from 0-255 seconds. (Default = 5 seconds)
ROM Boot Direct Starting Address = FFF000000?
The first location tested when PPCBug searches for a ROMboot module. (Default =
$FFF00000)
ROM Boot Direct Ending Address = FFFFFFFC?
CPCI-6020 CompactPCI Single Board Computer Installation and Use (6806800A51C)
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CNFG and ENV Commands
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