* gnu/build/hurd-boot.scm (make-hurd-device-nodes): Cater for existing
directories (dev, servers).
(set-hurd-device-translators): Remove /servers/socket/1, that is created by
libexec/console-run. Cater for nonexistent /dev/console.
(boot-hurd-system): Call make-hurd-device-nodes on initial run.