Read boot parameters from SYSTEM's (system or generation) "parameters" file and returns the corresponding <boot-parameters> object or #f if the format is unrecognized. The object has its kernel-arguments extended in order to make it bootable.

Return a derivation that builds the system profile of OS.

Return the default label for OS, as it will appear in the bootloader menu entry.

Return the basename of the kernel image file for TARGET.

Return the packages of the OS <operating-system> record object.

Return the directory containing the locales compiled for the definitions listed in OS. The C library expects to find it under /run/current-system/locale.

Return the list of Shepherd service names for OS.

Return a variant of OS where ROOTS are registered as GC roots.

Return the list of essential services for OS. These are special services that implement part of what's declared in OS are responsible for low-level bookkeeping.

Return the activation script for OS---i.e., the code that "activates" the stateful part of OS, including user accounts and groups, special directories, etc.

Return the subset of mapped devices that can be installed in user-land--i.e., those not needed during boot.

Return a <menu-entry> instance given CONF, a <boot-parameters> instance.

Return the file system that contains the store of OS.

Return a variant of OS that stores its own provenance information, including CONFIG-FILE, if available. This is achieved by adding an instance of PROVENANCE-SERVICE-TYPE to its services.