Fixes <https://bugs.gnu.org/30760>. Reported by Tomáš Čech <sleep_walker@gnu.org>. * guix/scripts/system.scm (perform-action): Add #:skip-safety-checks? and honor it. (show-help, %options): Add --skip-checks. (process-action): Pass #:skip-safety-checks? to 'perform-action'. * doc/guix.texi (Invoking guix system): Document --skip-checks.