Hi,

Alex Kost <alezost@gmail.com> skribis:

> Hello, recently I found that "guix system" makes a "broken" system for
> me.  When I boot a freshly created system, I get something like this:
>
>   In procedure <...> at ./gnu/build/file-systems.scm:282:4 (device)
>   In procedure fport_seek: Invalid argument
>
> and I'm thrown at the Guile promt.

I think this is due to ‘read-superblock’ trying to seek beyond the end
of one of the devices that’s on your machine.

Could you try the attached patch and see if it solves the problem?

Thanks for reporting it!

Ludo’.