Booting a Partition into Single-User Mode

It is occasionally necessary to boot HP-UX into single-user mode to diagnose issues with networking or other components. On a non-vPars computer, you do this by using the -is option at the ISL prompt:

ISL> hpux -is

On a vPars computer, you can boot a virtual partition into single-user mode either at the monitor prompt or at the shell prompt of a running partition.

For example, if we wanted to boot winona2 into single user mode:

From MON>

From the monitor prompt, specify the -is option as an argument to vparload.

MON> vparload -p winona2 -o "-is"

From shell prompt

From the shell prompt of another partition, specify the -o option with the vparboot command:

winona1# vparboot -p winona2 -o "-is"

	NOTE: To boot a partition, the partition must be in the down state. If the partition is in the hung state, perform the following before executing the vparboot: Turn off autoboot for the target partition: winona1# vparmodify -p winona2 -B manual Attempt to reset the partition with the -t option (soft reset): winona1# vparreset -p winona2 -t If it still appears to be hung, reset it with the -h option (hard reset): winona1# vparreset -p winona2 -h Continue verifying the state until vparstatus shows that winona2 is in the down state: winona1# vparstatus -p winona2 -v | grep -E "Name|State" Name: winona2 State: down After you have entered into single-user mode and if you want to turn autoboot back on, the command is: winona1# vparmodify -p winona2 -B auto