The same (. Copied this time from boot.zip only
/boot/vmlinuz
/boot/initramfs
/boot/initramfs-extra
/kernel/boot/config.txt (overwritten)
/boot/usercfg.txt (include from above)
and modules
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TY very much. I had assumed this was the case, but I thought it was still worthwhile to check and try. It looks like it requires a full recompile. Maybe i will find a few free hours, but as i said - i would not like to try too much as this could damage my hardware very easily…
So if someone with a CM4Lite could do the recompilation based on the patches from PMOS and supply the resulting kernel, it would help a lot.
i had a little bit spare time and ported the patches to the latest raspberry pi kernel.
seems to compile just fine, someone dare to try it?
KERNEL=kernel8
make bcm2711_defconfig
# EDIT .config, enable BACKLIGHT_OCP8178, DRM_PANEL_CLOCKWORK_CWU50 and SIMPLE_AMPLIFIER_SWITCH
make -j4 Image.gz modules dtbs
sudo make modules_install
sudo cp arch/arm64/boot/dts/broadcom/*.dtb /boot/firmware/
sudo cp arch/arm64/boot/dts/overlays/*.dtb* /boot/firmware/overlays/
sudo cp arch/arm64/boot/dts/overlays/README /boot/firmware/overlays/
sudo cp arch/arm64/boot/Image.gz /boot/firmware/$KERNEL.img
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gimme some time ) my rpi build host is kinda slow
When my unit gets here I’m going to do Linux From Scratch and make my own uConsole OS. I’m very excited! And maybe try to get the latest Raspberry Pi OS working too with the most recent supported kernel
just realized i have a bug in one of the patches, which result in an late compile error when i tried the compilation directly on the rpi. I compared the kernels and found a different flag, which should do the same. Hopefully this works now
Awesome! how do I give you beer money?!
as i benefit the same as everyone else, no need to 
am I right i can use stock raspi image, boot it on RPi4 for instance, build and copy new kernel within the same SDCard(just run build commands there), put this SDCard to UConsole and it will work?
not entirely, you still need to configure a little bit like screen rotation. and ofc only if i didnt do a mistake - the code is currently untested and this repository is on bleeding edge. the last official kernel is 6.1, this is 6.6
rotation looks more like post boot things. ok, thanks, trying to build now
yep, build failed on rpi(
it should not fail anymore, i built it myself and it worked flawless. how did you compile it? what error did you get?
error 2 with no reason, but i did it almost on empty distro. I installed suggested dependencies for kernel build and started over
yes, without dependencies it will fail 
see https://www.raspberrypi.com/documentation/computers/linux_kernel.html
also dont forget to edit the .config file to enable the modules and make sure to use the uc overlays in your boot config file after installation.
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sure, i already prepared boot.config from stock cw image
well, it won’t boot up(
connected hdmi - i see welcome screen, but internal keyboard does not work as well as usb connected
this is strange, as the internal keyboard is connected via usb. do you have a screen output on the internal screen? did you edit the .config and set the options like BACKLIGHT_OCP8178=y before compilation?
yes, did as you described.
no signs of life.
hm. this is very strange, seems like i’ll have to debug it myself. its also a possibility that kernel 6.6 has other problems. you can use the 6.1 version from @yatli (GitHub - yatli/raspberrypi-linux at uc-alarm-6.1.21), afaik everything except backlight control is working.
i’ll try it myself this weekend on my hardware. If i get it running, i’ll plan to upload a deb package with the compiled kernel to make installation as easy as possible.
1 Like