https://debianaddict.com/tags/screen/ Recent content in Screen on Debian Addict Hugo en-US Fri, 08 Mar 2013 10:47:46 +0000 https://debianaddict.com/2013/03/08/gnu-screen-cannot-open-terminal-when-you-su-to-a-user/ Fri, 08 Mar 2013 10:47:46 +0000 http://debianaddict.com/?p=56 <p>Quick tip this time.</p> <p>Often enough, one is logged in as root and decides to su - to an underprivileged user. Due to the tty for the root shell being owned by the user root, the su&rsquo;d environment is unable to run screen:</p> <p><code>root@whitegirl:~# su - joe joe@whitegirl:~$ screen Cannot open your terminal '/dev/pts/0' - please check. joe@whitegirl:~$ </code></p> <p>This is resolved by setting the owner of the terminal device to the target user before running su, so the user then has write privileges on the pseudo teletype device:</p>