`systemd-bless-boot.service` ( 8 )

отметить текущий процесс загрузки как успешный (Mark current boot process as successful)

Имя (Name)

systemd-bless-boot.service, systemd-bless-boot - Mark current boot process as successful

Синопсис (Synopsis)

systemd-bless-boot.service

/usr/lib/systemd/system-bless-boot

Описание (Description)

systemd-bless-boot.service is a system service that marks the current boot process as successful. It's automatically pulled into the initial transaction when systemd-bless-boot-generator(8) detects that systemd-boot(7) style boot counting is used.

Internally, the service operates based on the LoaderBootCountPath EFI variable (of the vendor UUID 4a67b082-0a4c-41cf-b6c7-440b29bb8c4), which is passed from the boot loader to the OS. It contains a file system path (relative to the EFI system partition) of the Boot Loader Specification[1] compliant boot loader entry file or unified kernel image file that was used to boot up the system. systemd-bless-boot.service removes the two 'tries done' and 'tries left' numeric boot counters from the filename, which indicates to future invocations of the boot loader that the entry has completed booting successfully at least once. (This service will hence rename the boot loader entry file or unified kernel image file on the first successful boot.)

Параметры (Options)

The /usr/lib/systemd/system-bless-boot executable may also be
       invoked from the command line, taking one of the following
       command arguments:

       status
           The current status of the boot loader entry file or unified
           kernel image file is shown. This outputs one of "good",
           "bad", "indeterminate", "clean", depending on the state and
           previous invocations of the command. The string
           "indeterminate" is shown initially after boot, before it has
           been marked as "good" or "bad". The string "good" is shown
           after the boot was marked as "good" with the good command
           below, and "bad" conversely after the bad command was
           invoked. The string "clean" is returned when boot counting is
           currently not in effect.

           This command is implied if no command argument is specified.

       good
           When invoked, the current boot loader entry file or unified
           kernel image file will be marked as "good", executing the
           file rename operation described above. This command is
           intended to be invoked at the end of a successful boot. The
           systemd-bless-boot.service unit invokes this command.

       bad
           When called the 'tries left' counter in the boot loader entry
           file name or unified kernel image file name is set to zero,
           marking the boot loader entry or kernel image as "bad", so
           that the boot loader won't consider it anymore on future
           boots (at least as long as there are other entries available
           that are not marked "bad" yet). This command is normally not
           executed, but can be used to instantly put an end to the boot
           counting logic if a problem is detected and persistently mark
           the boot entry as bad.

       indeterminate
           This command undoes any marking of the current boot loader
           entry file or unified kernel image file as good or bad. This
           is implemented by renaming the boot loader entry file or
           unified kernel image file back to the path encoded in the
           LoaderBootCountPath EFI variable.

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

       --version
           Print a short version string and exit.

Смотри также (See also)

systemd(1), systemd-boot(7), systemd.special(7)

Примечание (Note)

1. Boot Loader Specification https://systemd.io/BOOT_LOADER_SPECIFICATION

Исходный текст на man7.org