On Thu, 15 Aug 2013, Allan McRae wrote:
The update to glibc-2.18 removes pt_chown which is a security risk. It is not needed on an Arch system given we have /dev/pts.
However, some people appear to have /dev/pts in their /etc/fstab file, which generates it with the wrong permissions. This will result in errors like "grantpt failed: Operation not permitted".
To fix this, remove that line from your fstab file. systemd will take care of generating /dev/pts with the right permissions.
Just a suggestion, but I think this might be worth a news item. I got stung by this this morning, and couldn't log in (as my regular user, which automatically spawns tmux on login). It wasn't at all obvious what the problem/solution was. Just guessing that users might be caught by this who don't follow arch-dev-public. Thanks, Pete.