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

[Mathieu Othacehe]

Hey Ludo,

> Before the new image API though, ‘disk-image’ did not produce a volatile
> root, IIRC.  I’m tempted to think that we should set (volatile-root?
> #f) on image types where it makes sense, which is maybe all of them
> except ISO.  (Then we need to make sure ‘guix system vm’ still gets a
> volatile root.)
>
> WDYT, Mathieu?

That's also what I proposed to Maxim. Note that "guix system vm" is
still using the "old" VM based image production method and doesn't share
the new image API volatile default.

Thanks,

Mathieu