diff options
Diffstat (limited to 'gnu/services/networking.scm')
| -rw-r--r-- | gnu/services/networking.scm | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/gnu/services/networking.scm b/gnu/services/networking.scm index f9d262d977..33ecf9ccd3 100644 --- a/gnu/services/networking.scm +++ b/gnu/services/networking.scm @@ -165,6 +165,8 @@ Protocol (DHCP) client, on all the non-loopback network interfaces." (provision '(networking)) (start #~(lambda _ + (false-if-exception (delete-file #$pid-file)) + ;; When invoked without any arguments, 'dhclient' ;; discovers all non-loopback interfaces *that are ;; up*. However, the relevant interfaces are @@ -178,7 +180,19 @@ Protocol (DHCP) client, on all the non-loopback network interfaces." "-pf" #$pid-file ifaces)))) (and (zero? (cdr (waitpid pid))) - (call-with-input-file #$pid-file read))))) + (let loop () + (catch 'system-error + (lambda () + (call-with-input-file #$pid-file read)) + (lambda args + ;; 'dhclient' returned before PID-FILE + ;; was created, so try again. + (let ((errno (system-error-errno args))) + (if (= ENOENT errno) + (begin + (sleep 1) + (loop)) + (apply throw args)))))))))) (stop #~(make-kill-destructor)))))) (define %ntp-servers |