Kernel for AWS EC2 ARM (Graviton)

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Kernel for AWS EC2 ARM (Graviton)

Postby drzee » Mon Apr 25, 2022 11:22 am

I have been working on creating Arch Linux ARM AMI for use on EC2 ARM (Graviton) - very similar to how I already provide same for x86_64 - https://wiki.archlinux.org/title/Arch_L ... b_Services

At this stage its pretty much working and the AMIs are booting nicely.

However there is one challenge, the default kernel package "linux-aarch64" can not be used and I'm currently compiling my own. This "disables" the "rolling update" nature for the kernel.

The primary reason, for not being able to use "linux-aarch64" is, that "CONFIG_ENA_ETHERNET is not set" it should be "CONFIG_ENA_ETHERNET=m".

Believe this could easily be fixed by creating a pull request and adding this to the Linux config file?

I'm aware, that for use on AWS EC2, the config file could be modified even more and a ton of modules compiled, could be thrown out (like all the wireless net drivers). But for now I would like to create/use a package that is basically the same Standard kernel that is the basis for all generic Arch Linux ARM builds.

There is a second challenge, which is the PKGBUILD. I had to make some differences in the build() function and in the package() function compared to the PKGBUILD in "linux-aarch64".

My first question would be to understand, what is the difference between "make Image Image.gz modules" and "make vmlinux modules" ? Or is it the same file just using different naming?

What is the best approach for PKGBUILD to priovide a kernel compatible with AWS EC2?

Should I create a complete new kernel package (say linux-aarch64-ec2) or would it be possible to merge it into "linux-aarch64" (which would be preferred in keeping with the standard default/package).

I can see it looks like some special kernel package for chromebooks is merged into the linix-aarch64 PKGBUILD already so that does not seem to be out of question?

Some best practice advice/pointers would be appreciated. Happy to share PKGBUILD and linux.preset files.
drzee
 
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