kdumpctl (8) - Linux Manuals

kdumpctl: control interface for kdump

Command to display kdumpctl manual in Linux: $ man 8 kdumpctl

NAME

kdumpctl - control interface for kdump

SYNOPSIS

kdumpctl COMMAND

DESCRIPTION

kdumpctl is used to check or control the kdump service. In most cases, you should use systemctl to start / stop / enable kdump service instead. However, kdumpctl provides more details for debug and a helper to setup ssh key authentication.

COMMANDS

start: Start the service.
stop: Stop the service.
status: Prints the current status of kdump service. It returns non-zero value if kdump is not operational.
restart: Is equal to start; stop
propagate: Helps to setup key authentication for ssh storage since it's impossible to use password authentication during kdump.
showmem: Prints the size of reserved memory for crash kernel in megabytes.