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Path: utzoo!mnetor!seismo!mcvax!dutesta!karel
From: karel@dutesta.UUCP (Karel van Houten)
Newsgroups: comp.os.minix
Subject: Re: Becoming ROOT on MINIX
Message-ID: <601@dutesta.UUCP>
Date: Thu, 21-May-87 04:49:29 EDT
Article-I.D.: dutesta.601
Posted: Thu May 21 04:49:29 1987
Date-Received: Sat, 23-May-87 10:28:48 EDT
References: <600@dutesta.UUCP>
Reply-To: karel@dutesta.UUCP (Karel van Houten)
Organization: Delft University of Technology, The Netherlands
Lines: 26
Keywords: protection minix

In article <600@dutesta.UUCP> mol@dutesta.UUCP (Marcel Mol) writes:
>Probably this is found for the one-hundred-and-oned time,
>but becoming root isn't that difficult.
Yeah...

>Do the following:
>	Start up MINIX
>	Login as a casual user
>	unmount the /usr filesystem ('/etc/umount /dev/fd0' if /usr is mounted
>				     on diskdrive 0)
>	type cntl-D

What would you think the system should do when it can't execute 'login'?
Rememeber that on MINIX login resides in /usr/bin (floppy A), and not in
/bin, as result of the small root device.
The system detects an error, and start a super user shell at the console.

This is the normal procedure after an unrecoverable file system error 
after an automatic reboot at BSD systems.

When you have a better solution (like shutting down the system, and only
allowing rebooting from the original distribution), we are interested to know.

-- 
                                 Karel van Houten, Delft Univ. of Technology
                                 ..!seismo!mcvax!dutesta!karel