Odroid C1+ headless - mainline kernel

[Sagittarius]

I'm using an Odroid C1+ mainly as a multiple instances of mpd server (one http vorbis 192 Kbits/s stream for each member of the family on our smartphones with mpdroid). Thanks to the Archlinuxarm devs !

I'd like to use it also for home-assistant which works great.

So I'd be glad to read some precise feedback for I have no UART cable (and because pacman -S mainlinekernel does not work as is), on how to install mainline kernel on Odroid C1/C1+ because even if the kernel is available (today linux-armv7-odroidc1 5.4.6-1) there is, unless I'm mistaken, absolutely no place where this is explained on the forum.

So help would be really appreciated.

[windozupdat3]

AFAIK mainline kernel does not have yet HDMI support and however needs some adjustment to boot.ini

[Sagittarius]

No HDMI, I don't really care for an headless server

[windozupdat3]

You kneed to adapt the boot.ini then. I once booted the C1 with mainline in the past, unfortunately I don't have my configuration available any more.

I probably followed some advice like: viewtopic.php?f=23&t=13256#p60119 or https://github.com/armbian/build/blob/m ... oid-c1.ini

[moonman]

To boot mainline 2 things need to be changed in boot.ini:

This will enable serial console
$this->bbcode_second_pass_code('', 'setenv condev "console=tty0 console=ttyS0,115200n8" # on both')
needs to become
$this->bbcode_second_pass_code('', 'setenv condev "console=ttyAML0,115200n8"')

This will load proper dtb for the kernel (while still retaining backwards compatibility):
$this->bbcode_second_pass_code('', 'ext4load mmc 0:1 0x21800000 /boot/dtbs/meson8b_odroidc.dtb')
to
$this->bbcode_second_pass_code('', 'ext4load mmc 0:1 0x21800000 /boot/dtbs/meson8b_odroidc.dtb || ext4load mmc 0:1 0x21800000 /boot/dtbs/meson8b-odroidc1.dtb')

There are many things that don't work, specifically what I noticed:
- Display
- eMMC (kernel can't find rootfs)
- slower performance
Probably other things that I haven't mentioned.

[Sagittarius]

Thank you very much moonman