# phpman > info > SYSTEMD-SYSTEM-UPDATE-GENERATOR

[SYSTEMD-SYSTEM-UPDATE-GEsystemd-system-updatSYSTEMD-SYSTEM-UPDATE-GENERATOR(8)](https://www.chedong.com/phpMan.php/man/SYSTEMD-SYSTEM-UPDATE-GEsystemd-system-updatSYSTEMD-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)