GNU bug report logs - #18081
openpty fails on standalone guix

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Mark H Weaver <mhw <at> netris.org>
Subject: bug#18081: closed (Re: bug#18081: openpty fails on standalone guix)
Date: Wed, 23 Jul 2014 00:06:03 +0000

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Your bug report

#18081: openpty fails on standalone guix

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 18081 <at> debbugs.gnu.org.

-- 
18081: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=18081
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: ludo <at> gnu.org (Ludovic Courtès)
To: Mark H Weaver <mhw <at> netris.org>
Cc: 18081-done <at> debbugs.gnu.org
Subject: Re: bug#18081: openpty fails on standalone guix
Date: Wed, 23 Jul 2014 02:05:23 +0200

This should be fixed with 7f239fd.  Let me know if it’s not!

Ludo’.

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From: Mark H Weaver <mhw <at> netris.org>
To: bug-guix <at> gnu.org
Subject: openpty fails on standalone guix
Date: Tue, 22 Jul 2014 12:54:27 -0400

openpty fails for unprivileged users on standalone guix.  For example,
running 'script' or 'screen' fails, and running M-x shell within emacs
results in a bash without job control, because emacs uses pipes to
communicate with the subprocess instead of pseudo-ttys, apparently
because it was unable to use openpty.

I've found that I can fix the problem by unmounting /dev/pts and then
remounting with the same options that LFS uses for its /etc/fstab:
"gid=1004,mode=620".  That gid corresponds to the 'tty' group.

      Mark

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