[Unit]
Description=Load crashkernel
After=syslog.target
ConditionKernelCommandLine=crashkernel

[Service]
Type=oneshot
ExecStart=/bin/sh -c 'kexec -p /boot/vmlinuz --append="root=%I irqpoll maxcpus=1 reset_devices init=/etc/shared/lib/exec/crashdumper"'
ExecStart=/sbin/sysctl 'kernel.sysrq=1'

[Install]
WantedBy=multi-user.target