Re: How do I set kernel command line arguments for all bootloader menu entries?

["Zack Weinberg" <zack@owlfolio.org>]

On Mon, Jul 22, 2024, at 5:33 PM, Tomas Volf wrote:
> Hi,
>
> On 2024-07-22 16:18:41 -0400, Zack Weinberg wrote:
>> Suppose I want to append "console=ttyS0,115200n8" to every GRUB
>> bootloader menu entry. I can't figure out how to do that with a
>> (bootloader-configuration) recipe.  The manual talks about writing
>> *extra* menu entries, but not about tweaking the automatically
>> generated ones.  Is it possible, and if so, how?
>
> I believe the kernel-arguments field can be of use.  For example I have this in
> my configuration:
>
>       (kernel-arguments (delete "quiet"
>                                 %default-kernel-arguments))

Thanks, but kernel-arguments isn't recognized as a valid field of
bootloader-configuration.

# guix system reconfigure /etc/config.scm
/etc/config.scm:93:14: error: 
   (bootloader-configuration
     (bootloader grub-bootloader)
     (targets (list "/dev/vda"))
     (terminal-outputs (quote (serial)))
     (terminal-inputs (quote (serial)))
     (serial-speed 115200)
     (kernel-arguments (cons* "console=ttyS0,115200n8"
                         %default-kernel-arguments))
   ): extraneous field initializers (kernel-arguments)

It *is* recognized as a valid field of a menu-entry, but that
brings me back to my original problem. I don't want to write
additional menu entries, I want to modify the automatically
generated menu entries.

zw