diff options
| -rw-r--r-- | gnu/services/base.scm | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/gnu/services/base.scm b/gnu/services/base.scm index 9dfabd9807..47c7d8bb27 100644 --- a/gnu/services/base.scm +++ b/gnu/services/base.scm @@ -685,17 +685,20 @@ to add @var{device} to the kernel's entropy pool. The service will fail if (shepherd-service-type 'virtual-terminal (lambda (utf8?) - (shepherd-service - (documentation "Set virtual terminals in UTF-8 module.") - (provision '(virtual-terminal)) - (requirement '(root-file-system)) - (start #~(lambda _ - (call-with-output-file - "/sys/module/vt/parameters/default_utf8" - (lambda (port) - (display 1 port))) - #t)) - (stop #~(const #f)))) + (let ((knob "/sys/module/vt/parameters/default_utf8")) + (shepherd-service + (documentation "Set virtual terminals in UTF-8 module.") + (provision '(virtual-terminal)) + (requirement '(root-file-system)) + (start #~(lambda _ + ;; In containers /sys is read-only so don't insist on + ;; writing to this file. + (unless (= 1 (call-with-input-file #$knob read)) + (call-with-output-file #$knob + (lambda (port) + (display 1 port)))) + #t)) + (stop #~(const #f))))) #t)) ;default to UTF-8 (define console-keymap-service-type |