On 2005-07-19 14:28:20 -0400 (Tue, Jul), Allan Gottlieb wrote:
> Previously I could boot into single user mode with the following line
> in grub
> 
>         kernel /boot/kernel-2.6.8-gentoo-r3 root=/dev/hdc7 single
> 
> After a recent emerge sync and update of world, the above is just a
> normal multiuser boot.
> 
> I can use
> 
>         kernel /boot/kernel-2.6.8-gentoo-r3 root=/dev/hdc7 softlevel=single
> 
> but this is not the same as booting into single user mode.  For
> example, there are virtual terminals, and hitting ^D does not then put
> you into multiuser mode.
> 
> I like single user mode for doing (incremental) backups each day
> before logging in.  I realize I can write "init.d scripts" and will
> probably do so, but having an interactive shell "on the way up to"
> full multiuser mode seems useful.
> 
> Does anyone know the current method of achieving what
> 
>         kernel /boot/kernel-2.6.8-gentoo-r3 root=/dev/hdc7 single
> 
> use to do a few weeks ago?
> 

I am not sure and I cannot test it right now, but for last few years if
I was in need of single user mode a kernel parmaeter 's' was doing its job.

So, check whether:
    kernel /boot/kernel-2.6.8-gentoo-r3 root=/dev/hdc7 s
works.
It should be the same as 'single' but maybe there is some magic in it ;-)

'man init' has some info about runlevel 'emergency' or '-b' which promises
to enter single user mode without running any scripts from /etc/inittab.

    kernel /boot/kernel-2.6.8-gentoo-r3 root=/dev/hdc7 emergency

I believe that's what you're looking for.

HTH


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