# phpman > man > systemd-system-update-generator(8)

[SYSTEMD-SYSTEM-UPDATE-GENERATOR(8)](https://www.chedong.com/phpMan.php/man/SYSTEMD-SYSTEM-UPDATE-GENERATOR/8/markdown) [systemd-system-update-generatorSYSTEMD-SYSTEM-UPDATE-GENERATOR(8)](https://www.chedong.com/phpMan.php/man/systemd-system-update-generatorSYSTEMD-SYSTEM-UPDATE-GENERATOR/8/markdown)



## NAME
       systemd-system-update-generator - Generator for redirecting boot to offline update mode

## SYNOPSIS
       /lib/systemd/system-generators/systemd-system-update-generator

## DESCRIPTION
       systemd-system-update-generator is a generator that automatically redirects the boot process
       to system-update.target, if /system-update exists. This is required to implement the logic
       explained in the [**systemd.offline-updates**(7)](https://www.chedong.com/phpMan.php/man/systemd.offline-updates/7/markdown).

       systemd-system-update-generator implements [**systemd.generator**(7)](https://www.chedong.com/phpMan.php/man/systemd.generator/7/markdown).

## SEE ALSO
       [**systemd**(1)](https://www.chedong.com/phpMan.php/man/systemd/1/markdown), [**systemd.special**(7)](https://www.chedong.com/phpMan.php/man/systemd.special/7/markdown)



systemd 249                                                       [SYSTEMD-SYSTEM-UPDATE-GENERATOR(8)](https://www.chedong.com/phpMan.php/man/SYSTEMD-SYSTEM-UPDATE-GENERATOR/8/markdown)