What is "crashkernel=X@Y" in /etc/grub.conf?
Updated -
Issue
What is "crashkernel=X@Y" in /etc/grub.conf
Environment
Red Hat Enterprise Linux
Resolution
"crashkernel=X@Y" is a kernel parameter for Kdump.
Kdump requires some memory reservation for the second kernel(capture kernel).
When kdump is enabled, (physical memory - X) will be allocated.
Kdump is disabled:
# uname -...Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.
