Re: disable substitutes for grub config and bootloader installation script

Hi, skribis: > rolling back the system shows it's trying to get substitutes for grub.cfg.drv > and install-bootloader.scm.drv: > ``` > itsme@antelope ~> sudo guix system roll-back > Password: > substitute: updating substitutes from 'https://berlin.guixsd.org'... 100.0% > substitute: updating s

disable substitutes for grub config and bootloader installation script

rolling back the system shows it's trying to get substitutes for grub.cfg.drv and install-bootloader.scm.drv: ``` itsme@antelope ~> sudo guix system roll-back Password: substitute: updating substitutes from 'https://berlin.guixsd.org'... 100.0% substitute: updating substitutes from 'https://mirro