bug#44353: [PATCH version-1.2.0 v2] guix: system: Add a new '--non-volatile' option for disk-image.

[Ludovic Courtès]

Mathieu Othacehe <othacehe@gnu.org> skribis:

>> * guix/scripts/system.scm (%options)[volatile-root?]: New boolean option.
>> (%default-options): Set its default value to #f.
>> (show-help): Add help doc.
>> * guix/scripts/system.scm (perform-action): Propagate option...
>> (system-derivation-for-action): ...here.  Use it to set the volatile-root?
>> field of the image object passed to SYSTEM-IMAGE.
>> * doc/guix.texi (Invoking guix system): Document it.
>
> This is a nice addition and it looks good to me.

Can we keep it for ‘master’ only, notably because of the “string
freeze”?

Ludo’.