1# Bootsvc 2 3`bootsvc` is (typically) the first program loaded by usermode (contrast with 4[userboot](userboot.md), which is loaded by the kernel). `bootsvc` provides 5several system services: 6- A filesystem service with the contents of the bootfs (/boot) 7- A loader service that loads from that bootfs 8 9After preparing these services, it launches one program from the bootfs. The 10program may be selected with a [kernel command line argument](kernel_cmdline.md) 11`bootsvc.next` (this default to `bin/devmgr` currently). The launched program 12is provided with the bootfs mounted at `/boot` and the loader service. The 13kernel command line arguments are provided to it via `envp`. See the 14documentation in `system/core/bootsvc/main.cpp:LaunchNextProcess()` for more 15details. 16