From 83460433b94487198750ad0bcc6f3869f68a8c8f Mon Sep 17 00:00:00 2001 From: "kanichos@yandex.ru" Date: Thu, 2 Jan 2020 15:13:45 +0300 Subject: [PATCH] activation: Check whether /proc/sys/kernel/modprobe exists. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * gnu/build/activation.scm (activate-modprobe): Check whether /proc/sys/kernel/modprobe exists before writing to it. Co-authored-by: Ludovic Courtès --- gnu/build/activation.scm | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/gnu/build/activation.scm b/gnu/build/activation.scm index 6d69628eb2..30f5e87d5a 100644 --- a/gnu/build/activation.scm +++ b/gnu/build/activation.scm @@ -281,9 +281,13 @@ (define install-special-file (define (activate-modprobe modprobe) "Tell the kernel to use MODPROBE to load modules." - (call-with-output-file "/proc/sys/kernel/modprobe" - (lambda (port) - (display modprobe port)))) + + ;; If the kernel was built without loadable module support, this file is + ;; unavailable, so check for its existence first. + (when (file-exists? "/proc/sys/kernel/modprobe") + (call-with-output-file "/proc/sys/kernel/modprobe" + (lambda (port) + (display modprobe port))))) (define (activate-firmware directory) "Tell the kernel to look for device firmware under DIRECTORY. This