diff options
| author | Marius Bakke <[email protected]> | 2022-12-28 01:02:47 +0100 |
|---|---|---|
| committer | Marius Bakke <[email protected]> | 2022-12-28 01:02:47 +0100 |
| commit | ec0fbb471dfc6f72796da9ebafbb0630daa91267 (patch) | |
| tree | 3b42f3d0a6470d85fbb8421179634bb278883e4e /gnu/build/activation.scm | |
| parent | f5ef7d34e4deecb80aff585c108b0a2ab1f33ce4 (diff) | |
| parent | 0cb8f7125b19264b01962c1249c3df4c5ce85aa9 (diff) | |
Merge branch 'master' into staging
Diffstat (limited to 'gnu/build/activation.scm')
| -rw-r--r-- | gnu/build/activation.scm | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/gnu/build/activation.scm b/gnu/build/activation.scm index 10c9045740..eea2233563 100644 --- a/gnu/build/activation.scm +++ b/gnu/build/activation.scm @@ -363,9 +363,14 @@ second element is the name it should appear at, such as: "Tell the kernel to look for device firmware under DIRECTORY. This mechanism bypasses udev: it allows Linux to handle firmware loading directly by itself, without having to resort to a \"user helper\"." - (call-with-output-file "/sys/module/firmware_class/parameters/path" - (lambda (port) - (display directory port)))) + + ;; If the kernel was built without firmware loading support, this file + ;; does not exist. Do nothing in that case. + (let ((firmware-path "/sys/module/firmware_class/parameters/path")) + (when (file-exists? firmware-path) + (call-with-output-file firmware-path + (lambda (port) + (display directory port)))))) (define (activate-ptrace-attach) "Allow users to PTRACE_ATTACH their own processes. |