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AudioLinux and NUC Troubleshooting and Tuning


rickca
Message added by austinpop

Summary of useful findings and recommendations

 

This section will be a living repository of useful info from this thread. It's very similar to a wiki and will be maintained by a small group of thread moderators.

 

Before you get started please refer to the Audio-Linux website to ensure you have the latest info and the proper versions of the OS. Audio-Linux.com  

 

**** Updated for AL 1.30 menu 118 or later.

 

  "First Run" setup for headless.  

 

Setup your NUC with a keyboard, mouse, and monitor to the NUC BIOS settings.  From the menu note the IP address of the machine to SSH into.  From a MAC the macOS terminal program supports SSH:

324537708_ScreenShot2019-01-28at3_02_19PM.thumb.png.739dc7f9cdb05e04da806c7c66877332.png

 

Then it is simpler to cut and paste into the terminal session. After entering the password for the audiolinuxuser you will be presented with the AL headless menu:

 

1518375894_ScreenShot2019-01-28at3_04_18PM.thumb.png.a7b2867a163f8f014e56e52ff69f94b4.png

 

Option 8 takes you to the command line for the following basic setup.  You will need to be the Root user for this setup and the su command first:

 

su

 

Fix the time zone:  (this is my timezone - look in directory /usr/share/zoneinfo)

 

timedatectl set-timezone America/Chicago
 

Setup and Start NTP daemon (to keep the system time in sync)

 

*** the config file is now properly filled in.

 

Now Start the daemon

 

timedatectl set-ntp true

 

 

NOTE: Sometimes the system takes a little while to get synced up.
 

Set hostname  (this provides a unique name for the machine on your network.  Replace <NAME> with your chosen name)

 

hostnamectl set-hostname <NAME> 
 

Once the above items are set up your machine is ready to be configured for say a Roon bridge/endpoint. That is done using the AL menu.  To return to the menu do the following commands.

 

exit

menu

 

----------------------------------

 

For most of us, the following basic settings are key.

From the configuration menu:

6. START and enable Roonbridge

15. SET Realtime Priority to extreme

16. ENABLE ramroot (reboot after)

 

Return to the main menu and reboot the NUC using 

 

11 Reboot

 

------------------

Roon Server setup is a bit more complex and we will cover it completely a bit later.  The key is where you are booting from and where the Roon database is stored.  In general; say a 32gb OPTANE "SSD".

 

  • You have to partition the SSD into a boot drive and a storage drive.  
  • The transfer the USB stick install to the boot partition.  
  • Reboot from the boot partition.  
  • Do the basic setup. Timezone and name
  • Transfer the Roon Database to the storage drive
  • Start the Roon Server
  • .....

 

----------------- 

The machine will reboot and from the display attached to the NUC you can watch it boot up and load into RAM.  Once the AudioLinux menu is showing the endpoint should be available in Roon.    This completes the basic startup sequence.  The system is ready to start testing.    

 

 

Recommended Posts

What I am sure is dead simple, but I don't know the answer:  Can't get Ethernet (not Wi-Fi, just plain old wired Ethernet) started on my little ASUS VivoMini with AudioLinux installed.  Can someone tell me what to do?

 

Thanks.

One never knows, do one? - Fats Waller

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein

Computer, Audirvana -> optical Ethernet to Fitlet3 -> Fibbr Alpha Optical USB -> iFi NEO iDSD DAC -> Apollon Audio 1ET400A Mini (Purifi based) -> Vandersteen 3A Signature.

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25 minutes ago, austinpop said:

 

Hmm, that usually just works.

  1. Are you booting off a USB stick?

 

Yes.

25 minutes ago, austinpop said:
  1. Is this Audiolinux headless?

 

Yes.

25 minutes ago, austinpop said:
  1. Did you modify or otherwise alter anything on the install?

 

Installed and enabled MPD and upmpdcli. Modified the MPD configuration file (not in /etc but in the /home directory) to work with my DAC. After I initially had problems, went into the network configuration file and changed “en*” to the full name of the Ethernet interface, as described on AL home page and linked page.

 

25 minutes ago, austinpop said:
  1. Do you have a monitor attached where you can run a command? If so, run networkctl and post output.

 

Have done various commands and both before and after modifying network configuration file, always get the information the Ethernet interface is “configuring,” never “configured.”

One never knows, do one? - Fats Waller

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein

Computer, Audirvana -> optical Ethernet to Fitlet3 -> Fibbr Alpha Optical USB -> iFi NEO iDSD DAC -> Apollon Audio 1ET400A Mini (Purifi based) -> Vandersteen 3A Signature.

Link to comment
  • 4 months later...
1 hour ago, rettib2001 said:

I finally got round to testing the ethernet limiting option and noticed a noticible improvement in sound quality at 100mbps. 

 

I'd done the hardware equivelant of this in the past with similar results. 

 

The problem I'm having however is that although a limit of 100mbps works perfectly for bit perfect pcm it produces stuttering/total drop off when upsampling to dsd512. The problem is present in both Roon and HQPlayer. 

 

On paper 100mbps should be enough but in practice it isn't working out so well. 

 

Has anyone else run into this problem? 

 

 

Though I am not using Audiolinux at the moment, I am upsampling and streaming at DSD512 quite happily with the last run of Ethernet cable coming from a 100mbps port. I would look at your network setup and/or hardware as one possibility.

One never knows, do one? - Fats Waller

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein

Computer, Audirvana -> optical Ethernet to Fitlet3 -> Fibbr Alpha Optical USB -> iFi NEO iDSD DAC -> Apollon Audio 1ET400A Mini (Purifi based) -> Vandersteen 3A Signature.

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