Raspberry pi and ram split
- 1 year 6 months ago
I successfully installed Alpine on my RaspberryPI.
It is a RasPi B rev1, so it has only 256MB of ram. The default memory split configuration, which Alpine is using, is to give 64MB to the GPU, and 182MB for the CPU.
As I plan to use my RasPi as a headless server, I want to change this split to 16MB for the GPU and 240MB for the CPU.
But when I try to add the option gpu_mem=16 to my config.txt file, as mentionned in the official RasPi config.txt documentation, Alpine doesn't start anymore. In fact, the ACT led is blinking 4 times every few seconds, which means, I guess, that something went wrong.
I also tried to add the option to the userconfig.txt, but then nothing changes and the RAM split remains the same.
This option works perfectly with a raspian or a picore image.
Does anybody have an idea of how I can perform the split change ?
By the way, I don't understand why with 182MB of RAM available, my root partition is only 91MB.