When enabled, Webmin sets `GRUB_DISABLE_RECOVERY=true`, which tells GRUB generator scripts to omit recovery-mode entries on distributions that support this option.

On BLS-based systems such as Rocky, AlmaLinux, and RHEL, rescue entries are separate files under `/boot/loader/entries`. Webmin hides existing BLS rescue entries by renaming their entry files, and restores only entries hidden by Webmin when this option is disabled again. Future kernel or rescue-image updates may create new BLS rescue entries.