All Other Models

All Other Models

The following procedure describes how to boot the system off the alternate Root plex and can be used on all system. In the example used in this procedure, the system is reconfigured to boot off the partition /dev/dsk/dks0d2s0 and use partition /dev/dsk/dks0d2s1 as swap as an example. Substitute the correct partitions for your system.

On the System Maintenance Menu, choose Enter Command Monitor:
...
5) Enter Command Monitor

Option? 5
Command Monitor. Type "exit" to return to the menu.
Display the PROM environment variables:
>> printenv
SystemPartition=dksc(0,1,8)
OSLoadPartition=dksc(0,1,0)
root=dks0d1s0
...

The swap PROM environment variable (which is set below) is not displayed because it is not saved in NVRAM.
Reset the SystemPartition, OSLoadPartition, and root environment variables to have the values of the disk partition that contains the alternate plex and the swap environment variable to have the value of the alternate swap partition:
>> setenv SystemPartition dksc(0,2,8)
>> setenv OSLoadPartition dksc(0,2,0)
>> setenv root dks0d2s0
>> setenv swap /dev/dsk/dks0d2s1
Exit the Command Monitor and restart the system:
>> exit
...
Option? 1
Starting up the system...
...

Change /dev/rswap and /dev/swap so that they are linked to the new swap partition:
# cd /dev
# ls -l dsk/dks0d1s1 dsk/dks0d2s1
brw-r----- 1 root sys 128, 17 Sep 19 10:18 dsk/dks0d1s1
brw-r----- 2 root sys 128, 33 Sep 19 10:18 dsk/dks0d2s1
# ls -l *swap
crw------- 2 root sys 128, 17 Nov 18 1994 rswap
brw-r----- 2 root sys 128, 17 Sep 19 10:18 swap
# rm rswap swap
# mknod rswap c 128 33
# mknod swap b 128 33
Reboot the system to verify that it is configured correctly:
# reboot