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REBOOTMGRD(8) rebootmgrd REBOOTMGRD(8)

NAME

rebootmgrd, rebootmgr.service - Reboot the machine during a maintenance window.

SYNOPSIS

/usr/libexec/rebootmgrd [--debug | --verbose | --help | --version]

/usr/lib/systemd/system/rebootmgr.service

DESCRIPTION

To avoid that a whole cluster or a set of machines with the same task reboot at the same time, rebootmgrd reboots the machine following configured policies.

Reboot Strategies

rebootmgr supports various strategies for determining when a reboot should be performed:

instantly

The reboot is carried out without waiting for a maintenance window.

maint-window

Reboot only during a specific maintenance window. If no maintenance window is specified, the system reboots immediately.

best-effort

This is the default setting. If a maintenance window is specified, maint-window is used. If no maintenance window is specified, the reboot takes place immediately (instantly).

off

rebootmgr continues to run, but ignores all reboot timers that expire in the meantime. The configuration file is not updated, so this option is no longer active after a reboot. When rebootmgr is reactivated, it will continue to use the old specified maintenance window and any reboot timers that are still running will no longer be ignored.

The reboot strategy can be configured via rebootmgr.conf(5) and adjusted at runtime via rebootmgrctl(1). These changes will be written to the configuration file and survive the next reboot. Except for the off strategy.

OPTIONS

--debug

Log additional informations during runtime. A real reboot is not done in debug mode.

--verbose

Log additional informations about requested reboots.

--help

Display help text and exit

--version

Output version information and exit

SEE ALSO

rebootmgrctl(1), rebootmgr.conf(5), systemd.time(7)

AUTHOR

Thorsten Kukuk <kukuk@suse.de>

02/13/2025 rebootmgr