bug#37977: Mount options ignored for root file system

[Guillaume Le Vaillant]

Ludovic Courtès skribis:

> The root file system is mounted by ‘mount-root-file-system’ in
> linux-boot.scm, and you’re right: it happily ignores any options in the
> <file-system> object for “/”.  :-)
>
> A solution would be to have ‘boot-system’ take an additional
> #:root-file-system-options parameter that it would pass down to
> ‘mount-root-file-system’, which would honor it.
>
> Would you like to give it a try?

The attached patch adds an 'options' parameter to
'mount-root-file-system' and makes 'boot-system' use it with the
content of the 'options' field of the <file-system> object for "/".

It's not exactly the solution you described (adding a keyword argument
to 'boot-system'), but I think it should work. What do you think?

I tried it with my btrfs root file system, and it is correctly mounted
with the options declared in my '/etc/config.scm' file.

0001-linux-boot-Don-t-ignore-options-when-mounting-root-f.patch
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