Building modules on Slackware-current on PI 4 with 64-bit kernel.
 

Hello,

I use slackware a bunch and also use ZFS. I'm trying to build a mini slackware machine on my Pi4 that I can send ZFS file systems to for backup reasons. In order to use zfs, I really need a 64-bit kernel.

I installed SARPi kernel/modules/hacks on my Pi using the slackware-arm current userspace, then upgraded these packages to get a 64-bit kernel:

kernel-modules-sarpi64-5.2.8-armv8-1_slackcurrent_19Aug19_sp64
kernel_sarpi64-5.2.8-armv8-1_slackcurrent_19Aug19_sp64
sarpi64-boot-firmware-armv8-1_slackcurrent_19Aug19_sp64
sarpi64-hacks-4.0-armv8-1_slackcurrent_19Aug19_sp64

That worked fine, and now I have a 64-bit kernel and 32-bit userspace.

I was able to build the ZFS userspace just fine with 32-bit binaries, which shouldn't be a problem, but I can't build the 64-bit kernel modules as I'm missing the kernel-source and kernel-header packages.

I looked all over for a sarpi64 kernel source and kernel headers package, but it doesn't look like one is available.

Any thoughts on where to find this, or how to get a 64-bit kernel on a pi with a build environment?

Thanks,
schu

Hi and happy holidays schu.

SARPi64 kernel source can be found on kernel.org - or Raspberry Pi GitHub repository if you prefer. All the information you need to build it is included on the website - even the build scripts are available. It's all experimental work and testing that I played around with and decided to share, in the event that someone may find it useful or helpful.

SARPi kernel source code
 

The Linux kernel source code from which the SARPi installer images and system packages are created is available from the SARPi downloads page: http://sarpi.fatdog.eu/index.php?p=downloads

Once downloaded, install the package:
Et voila!

All future SARPi updates will correlate with any new kernel source package(s) as they will be built from the same source code to keep everything in-line and simple.

Enjoy! :cool: