System Boot - IBM 7012 G Series Service Manual

System Boot

This command enables you to begin boot activity.
Enter 6 in the main menu to select this option. The following screen is displayed:
The menu enables you to boot in three different ways:
Enter 0 to boot from the normal or service boot list, after completing all the maintenance
activity. The normal or service boot list is used, depending on the key mode.
Enter 1 to boot from a network. A network boot menu is shown.
Enter 2 to boot from a SCSI device. A menu enables you to specify the SCSI device
using the location code.
At this point, a BOOT FROM SCSI DEVICE screen appears. This displays the PRESENT
DEVICE LOCATION CODE. If it is not the device you want to boot from, go through each
option, and change it to the desired BUS, SLOT, SCSI ID, and LUN ID. Option 4 allows
you to change all these options at once. The BOOT FROM SCSI DEVICE screen is
similar to the following:
PRESENT DEVICE LOCATION CODE:
(Drawer – Bus#/Slot# – Connector – SCSI ID/LUN) 00070030
COMMANDS: 0> CHANGE BUS#
SELECT [x:exit]:
For the following, perform either steps 1-4 and 6 (commands 0-3 and 5 ) or steps 5 and 6
(commands 4 and 5):
1. Enter 0 to select the bus identification number. The system displays:
BUS# [0>Internal | 1>External or x: exit]
BUS 0 represents the Micro Channel bus in the 7012 G Series, The Change Bus option
is not available on the 7012 G Series because the Micro Channel bus is not extended
beyond the system board.
Enter your choice. The displayed location code is updated.
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Service Guide
SYSTEM BOOT
0> BOOT FROM LIST
1> BOOT FROM NETWORK
2> BOOT FROM SCSI DEVICE
SELECT [x:exit]:
BOOT FROM SCSI DEVICE
1> CHANGE SLOT#
2> CHANGE SCSI ID
3> CHANGE LUN ID
4> CHANGE DEVICE LOCATION CODE
5> BOOT FROM SELECTED DEVICE