Chapter | 6. | Loading | the | System | Diagnostics |
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If no | keys | are | pressed | after | the | system | unit | power | is | turned | on, | the system | ||
searches | a | list | of | devicesdefault boot (thelist ) for a bootable image. If a | bootable | |||||||||
image | is | found, | then | the | system | unit | loads | and | starts | the | operating | system. This | ||
called normal | boot . |
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The system unit can also be boocustomed bootfromlista, which can be changed through the System Management Services.
If certain keys are pressed during system startup, the system unit searches t
default or custom boot list for a bootableservice imagemode toinsteadstart ofin
normal mode. After a successful service mode boot, the diagnostic programs are started automatically.
The following pages describe the | default and custom boot lists, and how to boot |
these in either normal or service | mode. |
Default Boot | List |
The default | boot list is composed of the first device found of each of the followi |
types: |
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1.Diskette drive
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3.Disk Drive
4.Network device
If this | default | boot | list is | used during system startup, | the system | unit | attem | ||
from | the | diskette | drive, then | the | first | the | first | ||
drive | encountered, | and | finally | the | first network connection | encountered. |
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Custom | Boot | List |
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The contents ofcustomtheboot list | can | be | defined | by | using | the | graphical | System | |||||||||
Management | Services | or | the |
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custom | boot list | is | utilized during | system | startup, system | unit attempts | to boot | ||||||||||
from | each | specific | device | in | the custom | boot list. |
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Note: | Only | the | specific devices | contained | in | the | custom | boot | list are | checked f | |||||||
| bootable | image. | Other | devices | of thenot | samearchedtype | arefor | a |
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| bootable | image | unless | they are | also | specified | in | the | custom | boot | list. Ref | ||||||
Chapter 6. Loading the System
