begin  quoting James G. Sack (jim) as of Fri, Mar 10, 2006 at 04:05:25PM -0800:
[snip]
> I have also seen the root username renamed, and additional uid=0 users, 
> but I have a hunch the first might break something, and the second just 
> smells ugly.

I've made additional uid 0 users, and it's saved my bacon a time or two.

> Removing _all_ passwords leaves an uneasy feeling. But I suppose if 
> there were some fallback login when whatever can't happen does, ...

Knoppix and friends...

# mount /dev/hda3 /mnt
# vi /mnt/etc/passwd
# sync
# umount /dev/hda3
# eject
# reboot

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