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Re: [Jailkit-dev] screen session under jk_chroot

From: Piotr Wakuła
Subject: Re: [Jailkit-dev] screen session under jk_chroot
Date: Thu, 11 Jun 2009 16:34:33 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686; pl-PL; rv: Gecko/20080417 Fedora/1.1.9-2.fc7 SeaMonkey/1.1.9

Użytkownik Olivier Sessink napisał:
U¿ytkownik Olivier Sessink napisa³:
Piotr Waku³a wrote:

Hello everybody !

I'm trying to find out how to run screen session under jk_chroot ssh
connection to my server. I've copied all needed programs from parent
system to jk_chroot environment. When I try to start screen session, it
shows me a message like this : Must be connected to a terminal.

I have done it before, and I know it is tricky. If I recall correctly
you need the /dev/pts or /dev/pty directory or something like that in
your jail. This can be done with a bind mount.

I found it with strace, check out


Many thanks for You Oliver ! It works fine ! I discovered that "strace"
is a very helpfull command and shows very interesting messages !

what was the solution for screen?


Jailkit-dev mailing list

Ha ! of course Olivier not Oliver (sorry about that).

"Strace" said that screen need /proc directory in chroot environment. There are two possibilities to fix this problem, by mounting /proc directory under chroot env. or just make a symlink /proc to chroot env.


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