Difference between Kernel release upgrade and Kernel patch upgrade

[rajarshic]

Hi,

1. Please let me know the differences between Kernel release upgrade and Kernel patch upgrade if there is at all.

2. Generally we would extract the new kernel in some directory and then cut paste the new executables into the global kernel direcory followed by the instance specific kernel directories. My doubt is that during this process many executables will be replaced and some of the old one will continue to remain. What is the significance of the old executables? Do we need to retain them or remove them? Whatever kernel upgrades I've done, I retained the old executables and we never faced issues.

Thanks

[Former Member]

Dear

The main Diff between Kernal release upgrade and kernal patch upgrade is that

the kernal release upgrade effects whole os  part  and kernal patch upgrade effects some of os binaries as we apply kernal release upgrade when we got continuous abap dumps for any pgm it means sap has made some changes to get effect that changes they release new kernal release once applied that kernal all changes get activated and for kernal patch upgrade we need do apply some times when we apply patch set to existing sp 

Regards