cf4a81
.TH KDUMPCTL 8 2015-07-13 kexec-tools
cf4a81
cf4a81
.SH NAME
cf4a81
kdumpctl \- control interface for kdump
cf4a81
cf4a81
.SH SYNOPSIS
cf4a81
.B kdumpctl
cf4a81
.I COMMAND
cf4a81
cf4a81
.SH DESCRIPTION
cf4a81
.B kdumpctl
cf4a81
is used to check or control the kdump service.
cf4a81
In most cases, you should use
cf4a81
.B systemctl
cf4a81
to start / stop / enable kdump service instead. However,
cf4a81
.B kdumpctl
cf4a81
provides more details for debug and a helper to setup ssh key authentication.
cf4a81
cf4a81
.SH COMMANDS
cf4a81
.TP
cf4a81
.I start
cf4a81
Start the service.
cf4a81
.TP
cf4a81
.I stop
cf4a81
Stop the service.
cf4a81
.TP
cf4a81
.I status
cf4a81
Prints the current status of kdump service.
cf4a81
It returns non-zero value if kdump is not operational.
cf4a81
.TP
cf4a81
.I restart
cf4a81
Is equal to
cf4a81
.I start; stop
cf4a81
.TP
cf4a81
.I reload
cf4a81
reload crash kernel image and initramfs without triggering a rebuild.
cf4a81
.TP
cf4a81
.I rebuild
cf4a81
rebuild the crash kernel initramfs.
cf4a81
.TP
cf4a81
.I propagate
cf4a81
Helps to setup key authentication for ssh storage since it's
cf4a81
impossible to use password authentication during kdump.
cf4a81
.TP
cf4a81
.I showmem
cf4a81
Prints the size of reserved memory for crash kernel in megabytes.
cf4a81
cf4a81
.SH "SEE ALSO"
cf4a81
.BR kdump.conf (5),
cf4a81
.BR mkdumprd (8)