Hello. I'm writing a program that requires sound.target. I was reading about sound.target and how it's a special systemd unit that doesn't load until the system finds the sound card. Armbian takes quite a bit of time to find the sound card on the OPi, around 30 seconds. Or, maybe it's something else that's making it take so long.

I was wondering if there was a way I could mess around with systemd or something else to make the sound card found faster, thus sound.target and my program loading faster upon powering on the device. Thank you

7 hours ago, Kegan Simpson said:

faster upon powering on the device.

Armbian is general purpose OS and for us this is good enough. If you want such severe changes, you need to make a totally custom Linux OS from scratch with Buildroot or Yocto. Which will ofc cost you a lot of your resources ... 

13 hours ago, Kegan Simpson said:

I could mess around with systemd

Well, systemd offers some diagnose options:

systemd-analyze time

systemd-analyze plot > OPi_boottime-$(date +%Y%m%d_%H%M%S).svg

 

man systemctl

systemctl

 

And if you really want to tweak the very last millisecond:  https://forum.armbian.com/topic/8315-daily-tech-related-news-diet/?do=findComment&comment=90239