SPARC: How to Change the Default Boot Device

1. Become superuser.

2. Halt the system by using the init(1M) command.

   # init 0

3. If the > PROM prompt is displayed, type n and press Return.

   > n ok

   The ok PROM prompt is displayed.

4. Change the boot-device setting by using the setenv command.

   ok setenv boot-device device[n]

   boot-device	Identifies the parameter for setting the device from which to boot.
   device[n]	Identifies the boot-device value such as a disk or the network. The n can be specified as the disk number.

   Use the probe-scsi-all command if you need help identifying the disk number.

5. Verify the default boot device change by using the printenv command.

   ok printenv boot-device

6. Save the new boot-device value by using the reset command.

   ok reset

   The new boot-device setting is written to the PROM.

SPARC: Examples--Changing the Default Boot Device

In this example, the default boot device is set to disk.

# init 0
# 
INIT: New run level: 0
.
.
.
The system is down.
syncing file systems... done
Program terminated
ok setenv boot-device disk
boot-device =         disk
ok printenv boot-device
boot-device           disk                    disk
ok reset
Sun Ultra 5/10 UPA/PCI (UltraSPARC-IIi 333MHz), No Keyboard
OpenBoot 3.15, 128 MB memory installed, Serial #nnnnnnnn.
Ethernet address 8:0:20:a5:d3:4b, Host ID: nnnnnnnn.

Boot device: disk  File and args:
SunOS Release 5.8 Version 64-bit
.
.
.
pluto console login:

In this example the default boot device is set to the network.

# init 0
# 
INIT: New run level: 0
.
.
.
The system is down.
syncing file systems... done
Program terminated
ok setenv boot-device net
boot-device =         net
ok printenv boot-device
boot-device           net                    disk
ok reset
Sun Ultra 5/10 UPA/PCI (UltraSPARC-IIi 333MHz), No Keyboard
OpenBoot 3.15, 128 MB memory installed, Serial #nnnnnnnn.
Ethernet address 8:0:20:a3:d54:4b, Host ID: nnnnnnnn.



Boot device: net  File and args:
.
.
.
pluto console login: