Re: unable single mode

[Alexei Nefediev <nefediev heron itep ru>]

> Emmanuel Papirakis writes:
> > Hey,
> > 
> > 	I have redhat-5.0 at home. Some of my friends come from time to time and they have fun by rebooting my system in single mode and change my root password to get access to some important files.
> > 
> > 	I use Linux primarily for the security of my files (some of them are important, and I would like all of them to be private). So, I ask, how do you disable the single mode.
> 
> I'd recommend putting in a password into your BIOS, so you need a password
> to boot your machine. That way, only you should be able to boot your
> machine. I think that's possible with most modern BIOSes.
> 
> HTH,
> 
> Thomas
> 

I would advise you to change friends. :-) If somebody has a physical
contact with the computer no passwords will help. He/she always can clear
the BIOS sets by removing a jumper. Yes, this takes much more time than
booting into single mode, but ...

By the way, why not to disable CTRL+ALT+DEL combination? The only
correct way to reboot your computer will be logging as root and typing
reboot or halt. If your friends just switch off the power somehow, that
is very dangerous for the running system, then I insist on my advice about
changing them.

Alexei