Re: Preventing single user mode
On Tue, 21 Oct 1997, Timm Gleason wrote:
> Does anyone out there know of a way to prevent a Debian box from being
> able to boot into single user mode? We have removed any sort of delay=
> settings from the lilo.conf, and this makes it extremely difficult to
> get into that mode, but does not prevent it.
>
> Any help?
How do you break into a perfectly secured area when the key just sheared
off in the lock? How do you rescue a Debian box that can't boot into
single-user mode?
But to answer the question, I guess you'd need to (a) secure the floppy
drive through the CMOS and (b) hack lilo (the source is there).
But even if you somehow remove the jumper pin that clears the CMOS
password, you can clear the CMOS entirely by temporarily removing its
power source, so I guess you have to cut the tracks to the floppy cable.
How far do you want to go?
> Timm Gleason
> Hardware Engineer
Hey, you should find this easy!
Just out of interest though, how straightforward is it to reset the CMOS
password on laptops that say this is a factory operation? (i.e. is this
just a con?)
--
David Wright, Open University, Earth Science Department, Milton Keynes MK7 6AA
U.K. email: d.wright@open.ac.uk tel: +44 1908 653 739 fax: +44 1908 655 151
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