Installation guide

Table 3–2: Options to the boot_osﬂags Variable (cont.)

Option Action

Use full crash dumps. (By default, partial dumps are used.)

Prompt for the kernel and special arguments. (By default, no

questions are asked.)

The options are concatenated into the boot_osflags variable to

achieve the desired effect. For example, to boot to multiuser mode

and use full crash dumps, enter:

>>> set boot_osflags ad

If you want the defaults, clear the variable as shown in the

following example:

>>> set boot_osflags ""

b. Determine the unit numbers for your system’s devices:

>>> show device

If you want to boot from the dual SCSI TURBOchannel option

card (PMAZB or PMAZC), complete the following steps:

i. Identify the slot number of the PMAZB or PMAZC option card:

>>> show conf

The previous command displays the system conﬁguration.

ii. Determine the unit number of your system’s devices:

Use the conf command with the slot number to identify the

unit numbers of the devices attached to that controller. For

example, to look at the devices attached to the controller in

slot 1, enter:

>>> t tc1 cnfg

A display appears identifying the unit number of each device

attached to that controller. Identify the unit number of the

device from which you want to boot.

c. Set the default boot device:

By default, you must provide a boot device when you boot your

system. If you always boot from the same device, use the following

command syntax with the bootdef_dev variable to set a default

boot device:

set bootdef_dev

device

3–8 Starting Up and Shutting Down the System