With a fresh debian-9 system the following will work: $ sudo snap install core $ sudo snap install hello however: $ sudo snap install hello which implicitly installs “core” will hang forever in the “configure” state of core. The reason for this behaviour is the following (best hypothesis right …

Copying from the first message, just to attribute a solution: in 2.26 (which is in stable) we had no “bindSyscallWorkaround” - so once 2.27 gets released the hanging configure hook should be fixed.