boot(1m) [hpux man page]

boot(1M)																  boot(1M)

NAME

       boot - bootstrap process

DESCRIPTION

   Itanium-based System Hardware
       An system's bootstrap process involves the execution of four software components:

	      o  CMOS

	      o  option ROM

	      o  EFI

	      o  Boot Manager

	      o  (see hpux.efi(1M)).

       After  the  processor  is  reset,  firmware initializes and tests processors and platform.  During initialization, the firmware lets a user
       interrupt and configure CMOS and option ROMs.  It then transfers control to EFI, the Extensible Firmware Interface.  EFI, in turn, initial-
       izes  EFI  boot	and  runtime services and launches the Boot Manager.  The Boot Manager, which allows loading of EFI application or drivers
       from EFI defined file system, loads and transfers control to the HP-UX-specific bootstrap loader.  then loads the HP-UX kernel object  file
       from the HP-UX file system to memory and transfers control to the loaded kernel image.

   PA-RISC Hardware
       The PA-RSIC bootstrap process involves the execution of three software components:

	      o  (see pdc(1M),

	      o  (see isl(1M), and

	      o  (see hpux(1M).

       After  the  processor is RESET, the (firmware), performs a self-test and initializes the processor.  It then loads and transfers control to
       the operating-system-independent in turn, loads and transfers control to the utility, the HP-UX-specific bootstrap loader.  then  downloads
       the HP-UX kernel object file from an HP-UX file system and transfers control to the loaded kernel image.

SEE ALSO

       hpux(1M), hpux.efi(1M), isl(1M), pdc(1M), efi(4).

																	  boot(1M)

BOOTCTL(1)							      bootctl								BOOTCTL(1)

NAME

       bootctl - Control the firmware and boot manager settings

SYNOPSIS

       bootctl [OPTIONS...] status

       bootctl [OPTIONS...] list

       bootctl [OPTIONS...] update

       bootctl [OPTIONS...] install

       bootctl [OPTIONS...] remove

DESCRIPTION

       bootctl checks, updates, installs or removes the boot loader from the current system.

       bootctl status checks and prints the currently installed versions of the boot loader binaries and all current EFI boot variables.

       bootctl list displays all configured boot loader entries.

       bootctl update updates all installed versions of systemd-boot, if the current version is newer than the version installed in the EFI system
       partition. This also includes the EFI default/fallback loader at /EFI/BOOT/BOOT*.EFI. A systemd-boot entry in the EFI boot variables is
       created if there is no current entry. The created entry will be added to the end of the boot order list.

       bootctl install installs systemd-boot into the EFI system partition. A copy of systemd-boot will be stored as the EFI default/fallback
       loader at /EFI/BOOT/BOOT*.EFI. A systemd-boot entry in the EFI boot variables is created and added to the top of the boot order list.

       bootctl remove removes all installed versions of systemd-boot from the EFI system partition, and removes systemd-boot from the EFI boot
       variables.

       If no command is passed, status is implied.

OPTIONS

       The following options are understood:

       -h, --help
	   Print a short help text and exit.

       --version
	   Print a short version string and exit.

       --path=
	   Path to the EFI System Partition (ESP). If not specified, /efi, /boot, and /boot/efi are checked in turn. It is recommended to mount
	   the ESP to /boot, if possible.

       -p, --print-path
	   This option modifies the behaviour of status. Just print the path to the EFI System Partition (ESP) to standard output and exit.

       --no-variables
	   Do not touch the EFI boot variables.

EXIT STATUS

       On success, 0 is returned, a non-zero failure code otherwise.

SEE ALSO

       Boot loader specification[1] systemd boot loader interface[2]

NOTES

	1. Boot loader specification
	   https://www.freedesktop.org/wiki/Specifications/BootLoaderSpec

	2. systemd boot loader interface
	   https://www.freedesktop.org/wiki/Software/systemd/BootLoaderInterface

systemd 237																BOOTCTL(1)