Package: ca-certificates Version: 20161102 My /usr/local file system is mounted read-only via NFS. This results in an error:
stretch[~]# dpkg --configure ca-certificates Setting up ca-certificates (20161102) ... chmod: changing permissions of '/usr/local/share/ca-certificates': Read-only file system dpkg: error processing package ca-certificates (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: ca-certificates -- regards Thomas