SA-200-s10 第八部分 执行Boot PROM 命令

keelee

目标：

• Identify boot programmable read-only memory (PROM)
  fundamentals
  
• Use basic boot PROM commands
  
• Identify the system’s boot device
  
• Create and remove custom device aliases
  
• View and change nonvolatile random access memory (NVRAM)
  parameters from the shell
  
• Interrupt an unresponsive system

1）
Introducing Boot PROM Fundamentals
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• Boot programmable read-only memory (PROM)

[url=file:///E:/东风汽车/参考文件/sun_ssse/SA200_ESLIDES/SA200/slides/mod08/slide02popup2.html]

• Nonvolatile random access memory (NVRAM)
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• Power-on self-test (POST)
  
  
  
  • Controlling the POST phase

• Disabling the abort sequence
  
• Displaying POST to the serial port
  [url=file:///E:/东风汽车/参考文件/sun_ssse/SA200_ESLIDES/SA200/slides/mod08/slide02popup7.html]
  

3）
Using Basic Boot PROM Commands

• Identifying the system boot PROM version
  
• Booting the system
  
• Accessing more detailed information
  
• Listing NVRAM parameters
  
• Changing NVRAM parameters
  
• Restoring default NVRAM parameters
  
• Displaying devices connected to the bus
  
  
  
  • The probe-scsi command
    
  • The probe-scsi-all command
    
  • The probe-ide command

4）
Identifying the System's Boot Device
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[url=file:///E:/东风汽车/参考文件/sun_ssse/SA200_ESLIDES/SA200/slides/mod08/slide04popup2.html]

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• The show-devs command
  
• The devalias command

5）
Creating and Removing Custom Device Aliases

• The nvalias command
  
• The nvunalias command

6）
Viewing and Changing NVRAM Parameters From the Shell

• Using the eeprom command

bash-3.00# eeprom
test-args: data not available.
diag-passes=1
local-mac-address?=false
scsi-initiator-id=7
oem-logo: data not available.
oem-logo?=false
oem-banner: data not available.
oem-banner?=false
ansi-terminal?=true
screen-#columns=80
screen-#rows=34
ttyb-rts-dtr-off=false
ttyb-ignore-cd=true
ttya-rts-dtr-off=false
ttya-ignore-cd=true
ttyb-mode=9600,8,n,1,-
ttya-mode=9600,8,n,1,-
output-device=screen
input-device=keyboard
auto-boot-on-error?=true
load-base=16384
auto-boot?=true
boot-command=boot
diag-file: data not available.
diag-device=net
boot-file: data not available.
boot-device=disk net
use-nvramrc?=false
nvramrc: data not available.
security-mode=none
security-password: data not available.
security-#badlogins=0
verbosity=normal
fcode-debug?=false
diag-out-console=false
diag-trigger=error-reset power-on-reset
service-mode?=false
diag-script=normal
diag-level=max
diag-switch?=false
error-reset-recovery=sync
7）
Interrupting an Unresponsive System

• Aborting an unresponsive system

本文来自ChinaUnix博客，如果查看原文请点：[url]http://blog.chinaunix.net/u/9710/showart_105155.html