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OpenBoot Console Overview
The Charon-SSP SPARC virtual machines use a subset of the Sun OpenBoot console found on native Sun workstations and servers. The figure below shows the initial console screen at boot on a virtual SPARCstation 20.
SMCC SPARCstation 20 Emulator by Stromasys
CPU_#0 TI, TMS390Z50(3.x) 0Mb External cache
CPU_#1 ****** NOT installed ******
CPU_#1 ****** NOT installed ******
CPU_#1 ****** NOT installed ******
>>>>> Power On Self Test (POST) is running .... <<<<<
SPARCstation 20 (1 X 390Z50), No Keyboard
Emulate OBP Rev. 2.25, 64 MB memory installed, Serial #12648430.
Ethernet address 2:c:29:4a:d3:29, Host ID: 72c0ffee.
Type help for more information
Can not load boot block!
ok
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OpenBoot Console Command Reference
The following sections describe the currently supported console commands.
banner
Display power-on banner.
Syntax
banner
Description
Use this command to display the power-on banner.
...
The following example demonstrates the output of the banner command on Charon-SSP configured as a SPARCstation 20.
ok bannerSPARCstation 20 (1 X 390Z50), No Keyboard
Emulate OBP Rev. 2.25, 64 MB memory installed, Serial #12648430.
Ethernet address 2:c:29:4a:d3:29, Host ID: 72c0ffee.
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boot
Load operating system.
Syntax
boot [ device-alias ] [ boot-args ]
...
This parameter should only be used if there are problems when booting from ISO files resulting in a BAD TRAP error. This seems to happen quite frequently with Solaris 7 installation ISOs.
For more information about device aliases, see the devalias command.
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The following example demonstrates the output of the boot command on Charon-SSP configured as a SPARCstation 20 and booting SunOS 4.1.4 from CD-ROM.
ok boot cdromBoot device: /iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@6,0:d File and args: -v
Boot Release 4.1.4 (sun4m) #2: Fri Oct 14 11:07:52 PDT 1994
Copyright (c) 1983-1990, Sun Microsystems, Inc.
Boot: Romvec version 3.
root on /iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@6,0:d fstype 4.2
Boot: vmunix
.Size: 868352.........................................................................................
...........................................................................................................
...........................................................................................................
.......................................................................................+2319136+75288 bytes
Statistics:
SuperSPARC: PAC ENABLED
SunOS Release 4.1.4 (MUNIX) #2: Fri Oct 14 11:09:07 PDT 1994
Copyright (c) 1983-1993, Sun Microsystems, Inc.
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devalias
Display device aliases.
Syntax
devalias
Description
...
The following example demonstrates the output of the devalias command.
ok devalias
ttyb /obio/zs@0,100000:b
ttya /obio/zs@0,100000:a
keyboard! /obio/zs@0,0:forcemode
keyboard /obio/zs@0,0
floppy /obio/SUNW,fdtwo
scsi /iommu/sbus/espdma@f,400000/esp@f,800000
net-aui /iommu/sbus/ledma@f,400010:aui/le@f,c00000
net-tpe /iommu/sbus/ledma@f,400010:tpe/le@f,c00000
net /iommu/sbus/ledma@f,400010/le@f,c00000
disk /iommu/sbus/espdma@f,400000/esp@f,800000/sd@3,0
cdrom /iommu/sbus/espdma@f,400000/esp@f,800000/sd@6,0:d
tape /iommu/sbus/espdma@f,400000/esp@f,800000/st@4,0
tape1 /iommu/sbus/espdma@f,400000/esp@f,800000/st@5,0
tape0 /iommu/sbus/espdma@f,400000/esp@f,800000/st@4,0
disk3 /iommu/sbus/espdma@f,400000/esp@f,800000/sd@3,0
disk2 /iommu/sbus/espdma@f,400000/esp@f,800000/sd@2,0
disk1 /iommu/sbus/espdma@f,400000/esp@f,800000/sd@1,0
disk0 /iommu/sbus/espdma@f,400000/esp@f,800000/sd@0,0
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help
Display OpenBoot console help.
Syntax
help [ command ]
Description
Use this command to display the list of commands supported by the OpenBoot console. For brief help on individual commands specify the command parameter.
Example
ok help
Following commands are supported by this version:
boot devalias nvalias nvunalias
printenv setenv probe-scsi show-devs
reset banner history help
Enter 'help command-name' for more help
Examples: help setenv
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history
Display console command history.
Syntax
history
Description
This command displays a list of all commands previously entered at the OpenBoot Console.
...
The following example demonstrates the output of the history command.
ok history
1 printenv
2 help
3 help devalias
4 help history
5 help probe-scsi
6 probe-scsi
7 show-devs
8 banner
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nvalias
Stores devalias values in nvramrc.
...
The following example demonstrates the use of the nvalias command to create and store a device alias named disk3 that represents a SCSI disk with a target ID of 3 on a SPARCstation 10 system
ok nvalias disk3 /pci@1f,0/pci@1,1/ide@3/disk@3,0 |
nvunalias
Removes a device alias from NVRAMRC.
...
Deletes the corresponding alias from NVRAMRC.
printenv
Display environment variables.
Syntax
printenv
Description
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The following examples illustrate the output of the printenv command on Charon-SSP/4U.
ok printenv
Variable Name Value Default Value
auto-boot? false true
local-mac-address? true true
output-device ttya screen
input-device ttya keyboard
boot-file -v
boot-device /pci@1f,4000/scsi@3/disk@1,0:a disk net
ttya-mode 9600,8,n,1,- 9600,8,n,1,-
ttyb-mode 9600,8,n,1,- 9600,8,n,1,-
diag-file -v
diag-device net disk net
diag-switch? true true
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probe-scsi
Scan SCSI bus for attached devices.
Syntax
probe-scsi
Description
...
The following example demonstrates the output of the probe-scsi command on system with a single virtual CD-ROM.
ok probe-scsi
Target 0
Unit 0 Disk virtual Scsicdrom (c)SRI0200
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quit or poweroff
Turn off virtual machine.
Syntax
quit | poweroff
Description
Use this command to shut down the virtual machine.
reset
Restart the system.
Syntax
reset
Description
This command restarts the SPARC virtual machine.
setenv
Set console environment variables.
Syntax
setenv variable value
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The following example illustrates the use of the setenv command.
ok setenv auto-boot? true
auto-boot? = true
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show-devs
Display device tree.
Syntax
show-devs
Description
This command displays the tree of devices visible from the console.
...
The following example demonstrates the output of the show-devscommand.
ok show-devs/TI,TMS390Z50@f,f8fffffc
/SUNW,sx@f,80000000
/eccmemctl@f,0
/virtual-memory@0,0
/memory@0,0
/obio
/iommu@f,e0000000
/openprom
/aliases
/options
/packages
/obio/power@0,a01000
/obio/auxio@0,800000
/obio/SUNW,fdtwo@0,700000
/obio/interrupt@0,400000
/obio/counter@0,300000
/obio/eeprom@0,200000
/obio/zs@0,0
/obio/zs@0,100000
/iommu@f,e0000000/sbus@f,e0001000
/iommu@f,e0000000/sbus@f,e0001000/SUNW,bpp@f,4800000
/iommu@f,e0000000/sbus@f,e0001000/ledma@f,400010
/iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000
/iommu@f,e0000000/sbus@f,e0001000/ledma@f,400010/le@f,c00000
/iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000
/iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/st
/iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd
/packages/obp-tftp
/packages/deblocker
/packages/disk-label
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