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From: leo@marco.UUCP (Matthias Pfaller)
Newsgroups: comp.os.minix
Subject: bug in chroot(2)?
Message-ID: <441@alice.marco.UUCP>
Date: 27 Jul 90 09:24:51 GMT
Organization: marco GmbH, 8047 Karlsfeld, West-Germany
Lines: 22


Yesterday I tried to use chroot(2).
my program looked like this
main()
{
	chroot("/mnt");
	execl("/bin/sh", "sh", (char *)0);
}
The program worked, and I had a sh with a changed root-directory.
but:
1. I could do a "cd /; cd .." and I was in the former root-directory
   is this behaviour correct?
2. The shell could no longer find commands. For example I could do
   'ls -l /bin/ls' and ls is found and displays /bin/ls.
   The displayed ls is that from /mnt/bin/ls, but the loaded one is
   that from the former /bin/ls. If I tried to start a program from
   /usr/bin (actually /mnt/usr/bin) the exec failed. I think the problem
   is, that mm only changes to the exec'ing process workingdirectory, but
   does not also change it's rootdirectory.

Has anyone fixed this allready?
	Matthias Pfaller (leo@verw.marco.de)