During the 10-second count-down during boot, press the space
bar once. You should see the prompt
boot>

boot -s

and press “Enter”. This will enable you to boot
into “single-user” mode.

The machine should show the usual device probes, but
instead of mounting
filesystems and starting daemons, you will get a
prompt like:

Enter full pathname of shell or RETURN for /bin/sh:

At that point, press “Enter”. The prompt should
read

This means that you are in single-user mode; you …

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