How to upgrade the kernel

[livetoday]

Hi everybody,

I am a newbie and want to do some exercise with linux kernels. I download the linux-2.6.21.7 kernel and was able to complied and installed it sucessfully. Now , I want to upgrade it to linux-2.6.22 kernel. So I want to know, what is the correct procedure to patch the kernel. So I need to clear the following doubts.

1. Can I patch the kernel as normal user ?

2. Do I need to downgrade the 2.6.21.7 to 2.6.21 first to upgrade it to 2.6.22 or I can directly patch the 2.6.21.7 ==> 2.6.22 ?

[infoshirish]

Hey,
You cant patch the kernel as normal user as they have limited permissions.Only root user can do that job.
No need to downgrade directly patch the 2.6.21.7 ==> 2.6.22 ? Or see the instructions to patch kernel from where you are downloading updated kernel patch.
See the below link-->
EVMS: Installation: Building the Kernel
Linux Headquarters: Applying a Kernel Patch

[livetoday]

when I try

path -p1 < patch-2.6.22 ( while in the source tree for 2.6.21.7)

I am getting the following error message

Reversed (or previously applied) patch detected! Assume -R? [n]

Hey,
You cant patch the kernel as normal user as they have limited permissions.Only root user can do that job.
No need to downgrade directly patch the 2.6.21.7 ==> 2.6.22 ? Or see the instructions to patch kernel from where you are downloading updated kernel patch.
See the below link-->
EVMS: Installation: Building the Kernel
Linux Headquarters: Applying a Kernel Patch

[infoshirish]

Hey,
I guess it is asking you whether to overwite the last installed kernel patch or to create new kernel one. Its not a error rather a message. I think you should provide it with Y for yes or -R for recursive option.