images: wsl2: Do not point the dummy bootloader at /dev/null.

Installing a bootloader configuration replaces the file
it is written to.  On WSL2 that file is /dev/null,
so "guix system reconfigure" replaces the character device
with a read-only regular file: afterwards every write to /dev/null
fails with EACCES for non-root users, and programs that create it
when missing turn it into a plain file that accumulates
whatever was meant to be discarded.

* gnu/system/images/wsl2.scm (dummy-bootloader)[configuration-file]:
  Use "/var/lib/wsl-bootloader.cfg" instead of "/dev/null".

Merges: https://codeberg.org/guix/guix/pulls/10514
Reviewed-by: gemmaro <gemmaro.dev@gmail.com>
Signed-off-by: Nguyễn Gia Phong <cnx@loang.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/gnu/system/images/wsl2.scm b/gnu/system/images/wsl2.scm
index b772d7b635c..ce58cd55c60 100644
--- a/gnu/system/images/wsl2.scm
+++ b/gnu/system/images/wsl2.scm
@@ -131,7 +131,7 @@ USER."
   (bootloader
    (name 'dummy-bootloader)
    (package dummy-package)
-   (configuration-file "/dev/null")
+   (configuration-file "/var/lib/wsl-bootloader.cfg")
    (configuration-file-generator
     (lambda (. _rest)
       (plain-file "dummy-bootloader" "")))