If this default boot list is used during system startup, the server attempts t the diskette drive, then from the CD-ROM drive, then from the first disk drive encountered, and finally the first network connection encountered.

Custom

Boot

List

 

 

 

 

 

 

 

 

 

 

 

 

 

The contents ofcustomthe

boot listcan be defined

by

using

the graphical

System

Management

Services

or

the text-based System Management Services. When the

 

custom

boot

list

is

used during system startup, the server

attempts to

boot in

from

each

 

specific

device

in

the custom

boot

list.

 

 

 

 

 

Note:

Only

the

specific devices

contained

in the custom

boot

list

are

checked f

 

bootable

image.

Other

devices

of thenot samearchedtype

arefor

a

 

 

 

bootable

image

unless

they are

also

specified

in

the

custom

boot

list. Ref

 

to Chapter 3, “Using System Management Services” for

more

information

on

 

custom

boot

lists.

 

 

 

 

 

 

 

 

 

 

If no bootable image is found in the custom boot list, then the server restart attempts to boot again.

If

the

custom boot

list is

discovered

to be corrupted, the server rebuilds t

boot

list

according

to the

default boot

list.

Loading Diagnostics in Service Mode Boot

The server can be booted in service mode (instead of normal mode) from either default boot list or custom boot list. After a successful service mode boot, th diagnostic programs are started automatically.

Booting in Service Mode from the Default Boot List

To boot in service mode from the default boot list, do the following:

1. Before stopping the programs and operating system, notify your system administrator and users that the server is going to be shut down.

2.Insert the diagnostics CD-ROM into the CD-ROM drive, if you intend to run standalone diagnostics.

3.Turn off the server.

4. Wait 30 seconds, then turn on the server.

5.When the keyboard indicator appears during startup, press the F5 key if the system console is a directly attached keyboard, or the 5 key if the syste console is an ASCII terminal.

Chapter 2. Using the 2Server-7

Page 39
Image 39
IBM B50 manual Loading Diagnostics in Service Mode Boot, Booting in Service Mode from the Default Boot List