Create image OS for specific task/reducing image size and boot time

[radiationman]

Hello all,

I am looking to create an OS image that is task specific, and hopefully reduces the size and boot time of my board. I currently am running OS

Code: Select all

##############################################################################
# Red Pitaya GNU/Linux Ecosystem
# Version: 1.04
# Build: 7
# Branch:
# Commit: 9fad00447133657b314d42d4c42ad306009faae9
# U-Boot: "redpitaya-v2016.4"
# Linux Kernel: "branch-redpitaya-v2017.2"
# Pro Applications: ""
##############################################################################

Which includes a lot of stuff I am not using I assume. Could anyone push me to some documentation or tutorial that describes building a custom image? Or modifying my existing image? I am quite new to this sort of thing so noob friendly advice is greatly appreciated.

radman

[redpitaya]

we recommend you to check this from our online documentation:
FPGA - building process https://redpitaya.readthedocs.io/en/lat ... t=building

and
Ecosystem guide: https://redpitaya.readthedocs.io/en/lat ... stem-guide

[radiationman]

we recommend you to check this from our online documentation:
FPGA - building process https://redpitaya.readthedocs.io/en/lat ... t=building

and
Ecosystem guide: https://redpitaya.readthedocs.io/en/lat ... stem-guide

I am using my Red Pitaya to compile and run a C program that acts as a multi-channel analyzer using the two signal inputs, and it utilizes these libraries:
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include <string.h>
#include <stddef.h>
#include <sys/param.h>
#include <time.h>
#include "fpga_osc.h"

Could you recommend which specific branches and tags I will need when building my image? (ref. 3.2.3 Ecosystem Guide)