Solaris OBP学习笔记

Solaris OBP学习笔记

 

查看当前的OpenBoot PROM版本使用以下命令：

# /usr/platform/‘uname -m‘/sbin/prtdiag -v 或者

# prtconf -V

Basic Boot PROM Commands

Command	Description
banner	Displays the power-on banner
boot	Boots the system
help	Lists the main help categories
printenv	Displays all parameters’ current and default values
setenv	Sets the specified NVRAM parameter to some value
reset-all	Resets the entire system; similar to a power cycle
set-defaults	Resets all parameter values to the factory defaults
sifting text	Displays the FORTH commands containing text
.registers	Displays the contents of the registers
probe-scsi	Identifies the devices on the internal Small Computer System Interface (SCSI) bus
probe-scsi-all	Identifies the devices on all SCSI buses
probe-ide	Identifies devices on the internal integrated device electronics (IDE) bus
probe-fcal-all	Identifies devices on all Fibre Channel loops
show-devs	Displays the entire device tree
devalias	Identifies the current boot device alias for the system
nvalias	Creates a new device alias name
nvunalias	Removes a device alias name
show-disks	Displays and allows a selection of device paths for the disks to be used for nvalias
sync	Manually attempts to flush memory and synchronize file systems
test	Runs self-tests on specified devices

1.       banner命令示例：

ok banner

Sun Ultra 5/10 UPA/PCI (UltraSPARC-IIi 360MHz), Keyboard Present OpenBoot 3.31, 128 MB (50 ns) memory installed, Serial #11888271.Ethernet address 8:0:20:b5:66:8f, Host ID: 80b5668f.

2. 引导系统boot命令：

 参数如下：

 boot device_name -options

ok boot 默认进入多用户模式，从默认的引导设备引导。

ok boot -s 进入单用户模式

ok boot cdrom 从光盘引导

ok boot cdrom -s从光盘引导进入单用户模式

ok boot -a引导系统进入交互式模式

ok boot -a

Enter filename [kernel/sparcv9/unix]:

Enter default directory for modules [/platform/SUNW,UltraAX-i2/kernel

/platform/sun4u/kernel /kernel /usr/kernel]:

Name of system file [etc/system]:

SunOS Release 5.10 Version s10 64-bit

Copyright 1983-2004 Sun Microsystems, Inc. All rights reserved.

Use is subject to license terms.

root filesystem type [ufs]:

Enter physical name of root device

[/pci@1f,0/pci@1/scsi@8/disk@0,0:a]:

ok boot -r 当系统增加或删除硬件时，进行重组引导。

ok boot -v 显示当前系统的硬件信息

ok boot -rv

ok boot -sv

3.help命令示例：

ok help

Enter ’help command-name’ or ’help category-name’ for more help

(Use ONLY the first word of a category description)

Examples: help system -or- help nvramrc

Categories:

boot (Load and execute a program)

nvramrc (Store user defined commands)

system configuration variables (NVRAM variables)

command line editing

editor (nvramrc editor)

resume execution

devaliases (Device aliases)

diag (Diagnostics commands)

ioredirect (I/O redirection commands)

misc (Miscellaneous commands)

ok

ok help boot

ok help nvramrc

ok help diag

ok help misc

 

4.显示NVRAM参数:

ok printenv

Variable Name Value Default Value

tpe-link-test? true true

scsi-initiator-id 7 7

keyboard-click? false false

keymap

ttyb-rts-dtr-off false false

ttyb-ignore-cd true true

ttya-rts-dtr-off false false

ttya-ignore-cd true true

ttyb-mode 9600,8,n,1,- 9600,8,n,1,-

ttya-mode 9600,8,n,1,- 9600,8,n,1,-

pcia-probe-list 1,2,3,4 1,2,3,4

pcib-probe-list 1,2,3 1,2,3

mfg-mode off off

diag-level max max

#power-cycles 273

output-device screen screen

input-device keyboard keyboard

boot-command boot boot

auto-boot? true true

diag-device net net

boot-device disk net disk net

local-mac-address? false false

screen-#columns 80 80

screen-#rows 34 34

use-nvramrc? false false

nvramrc devalias pgx24 /pci1f,0 ...

security-mode none

security-password

security-#badlogins 0

diag-switch? false false

ok

也可以使用printenv显示单个参数的值：

ok printenv boot-device

boot-device = disk net

boot-device参数的值有三个，disk、net和cdrom

5.更改NVRAM参数的值：

ok printenv auto-boot?

auto-boot? = true

ok

ok setenv auto-boot? false

auto-boot? = false

ok reset-all

Resetting ...

 

6.恢复默认的NVRAM参数的值：

ok set-defaults

Setting NVRAM parameters to default values.

Ok

ok set-default parameter-name

ok set-default diag-level

 

7. Displaying Devices Connected to the Bus

要鉴别当前已经连接到系统的外围设备，就要使用probe命令。如果想查找可用的probe命令，就使用sifting命令，如下所示：

ok sifting probe

(f006c954) probe-all (f006c5a0) probe-all (f006c378) probe-ide

(f006c1e8) probe-pci-slot (f006bc8c) probe-scsi

(f006bd78) probe-scsi-all (f0060fe8) probe-pci

(output truncated)

经常用到的probe命令只有三个，probe-scsi、probe-scsi-all和probe-ide.

示例如下：

ok probe-scsi

Target 1

Unit 0 Disk FUJITSU MAB3045S SUN4.2G17059825M62990

Target 3

Unit 0 Disk IBM DDRS34560SUN4.2GS98E99255C5917

(C) Copyright IBM Corp.

1997. All rights reserved.

Target 6

Unit 0 Removable Read Only device SONY CDROM

ok probe-scsi-all

/pci@1f,0/pci@1/pci@1/SUNW,isptwo@4

Target 3

Unit 0 Disk FUJITSU MAB3045S SUN4.2G1907

Target 4

Unit 0 Removable Tape EXABYTE EXB-8505SMBANSH20090

ok probe-ide

Device 0 ( Primary Master )

ATA Model : ST 38420A (DISK)

Device 1 ( Primary Slave )

Not Present

Device 2 ( Secondary Master )

Removable ATAPI Model : CRD-8322B (CD-ROM)

Device 3 ( Secondary Slave )

Not Present

 

8. show-devs命令示例：

Show-devs显示系统中整个设备树：

ok show-devs

/SUNW,UltraSPARC-IIi@0,0

/pci@1f,0

/virtual-memory

/memory@0,10000000

/pci@1f,0/pci@1

/pci@1f,0/pci@1,1

/pci@1f,0/pci@1,1/ide@3

/pci@1f,0/pci@1,1/SUNW,m64B@2

/pci@1f,0/pci@1,1/network@1,1

/pci@1f,0/pci@1,1/ebus@1

/pci@1f,0/pci@1,1/ide@3/cdrom

/pci@1f,0/pci@1,1/ide@3/disk

/pci@1f,0/pci@1,1/ebus@1/SUNW,CS4231@14,200000

/pci@1f,0/pci@1,1/ebus@1/flashprom@10,0

/pci@1f,0/pci@1,1/ebus@1/eeprom@14,0

/pci@1f,0/pci@1/pci@1

/pci@1f,0/pci@1/pci@1/SUNW,isptwo@4

(output truncated)

Ok

还有好多类似的show-命令：show-ttys, show-displays, show-nets, show-disks, and show-tapes.

 

9.devalias命令示例：

ok devalias

screen /pci@1f,0/pci@1,1/SUNW,m64B@2

net /pci@1f,0/pci@1,1/network@1,1

cdrom /pci@1f,0/pci@1,1/ide@3/cdrom@2,0:f

disk /pci@1f,0/pci@1,1/ide@3/disk@0,0

disk3 /pci@1f,0/pci@1,1/ide@3/disk@3,0

disk2 /pci@1f,0/pci@1,1/ide@3/disk@2,0

disk1 /pci@1f,0/pci@1,1/ide@3/disk@1,0

disk0 /pci@1f,0/pci@1,1/ide@3/disk@0,0

ide /pci@1f,0/pci@1,1/ide@3

floppy /pci@1f,0/pci@1,1/ebus@1/fdthree

ttyb /pci@1f,0/pci@1,1/ebus@1/se:b

ttya /pci@1f,0/pci@1,1/ebus@1/se:a

keyboard! /pci@1f,0/pci@1,1/ebus@1/su@14,3083f8:forcemode

keyboard /pci@1f,0/pci@1,1/ebus@1/su@14,3083f8

mouse /pci@1f,0/pci@1,1/ebus@1/su@14,3062f8

name aliases

左边显示的设备别名，右边显示的物理地址；

 

10.定制设备别名(nvalias和nvunalias):

语法如下：nvalias aliasname device_path

示例如何定制设备别名：

ok show-disks

a) /pci@1f,0/pci@1/scsi@1,1/disk

b) /pci@1f,0/pci@1/scsi@1/disk

c) /pci@1f,0/pci@1,1/ide@3/cdrom

d) /pci@1f,0/pci@1,1/ide@3/disk

e) /pci@1f,0/pci@1,1/ebus@1/fdthree@14,3023f0

q) NO SELECTION

Enter Selection, q to quit: d

/pci@1f,0/pci@1,1/ide@3/disk has been selected.

Type ^Y (Control-Y) to insert it in the command line.

e.g. ok nvalias mydev ^Y

for creating devalias mydev for /pci@1f,0/pci@1,1/ide@3/disk

ok nvalias mydisk ^y

ok nvalias mydisk /pci@1f,0/pci@1,1/ide@3/disk

ok setenv boot-device mydisk

boot-device = mydisk

ok boot

取消刚才定制的别名(nvunalias):

语法：ok nvunalias aliasname

示例如下：

ok nvunalias mydisk

ok setenv boot-device disk

boot-device = disk

ok reset-all

Resetting ...

 

11.从操作系统中更改NVRAM参数：

这里用到的是/usr/sbin/eeprom命令.只有root可以使用改命令更改NVRAM参数。

# eeprom  不加任何参数，则显示的是当前所有参数的值;

# eeprom boot-device

boot-device=disk

# eeprom boot-device=disk2更改系统默认的引导设备，这里更改为disk2.

# eeprom auto-boot?=true 更改auto-boot?的值.