parameter

file: /proc/sys/kernel/parameter
variable: kernel.parameter

Official reference

Through the kernel parameters below, memory can be reserved accordingly during the early stage of the first kernel booting so that a continuous large chunk of memomy can be found. The low memory reservation needs to be considered if the crashkernel is reserved from the high memory area.

• crashkernel=size@offset
• crashkernel=size
• crashkernel=size,high crashkernel=size,low