Q: Installing retropie on Openmediavault + Pi hole

Perseides

Hello, fairly new with raspberry OS (or linux in general). I have a raspberry Pi 4 with Raspberry OS Lite installed + open media vault. I also have a Pi-hole running via docker.

Is there any problem if I'd installed the Retro pie based on the guide? (https://retropie.org.uk/docs/Debian/).

I'm worried that with so many things installed, I might break something if I just blindly follow the guide.
Is there anything that I need to pay attention to?

Perseides

Hello, I went ahead and install the retropie and faced a few problems.

1/ Setting up the locale. I can't seem to generate en_US.UTF-8 locale? It kept changing to en_GB.UTF-8.
Even I'd for it to generate US locale via command: sudo locale-gen "en_US.UTF-8", it generated en_GB.UTF-8?? I know one is US English while the other is UK English, but does it matters?
(default locale was C.UTF-8 IIRC).

2/ Installing retropie with basic installation causes the error: Unable to connect to the internet..? I'm quite sure the Pi has access to the internet as I was able to update just prior to this and the Pi-hole is still working (my internet on other devices are not down).

Update: referring to this post:
https://retropie.org.uk/forum/topic/26957/retropie-installer-does-not-connect-to-internet/15
"checks if the Google's DNS IPs are routable from the Pi (8.8.8.8 for instance) and if that fails, it considers there is no internet available."
So it seems like I have to shut down my router routing my DNS to Pi-hole in order for the installation to work?

mitu

@perseides said in Q: Installing retropie on Openmediavault + Pi hole:

So it seems like I have to shut down my router routing my DNS to Pi-hole in order for the installation to work?

No, no actual connection is made - you can use whatever DNS you wish. What's the output of the command ?

ip -4 route get 8.8.8.8

Perseides

@mitu

Output: 8.8.8.8 via 192.168.1.1 dev eth0 src 192.168.1.10 uid 100 cache

mitu

@perseides Is the correct IP of your Pi shown when you open the Show IP Address entry in the RetroPie system ?

EDIT: what does ip addr show outputs (you can remove the private IPs if you want to leave them out) ?

EDIT2: you can also enable debugging for the installed and post the latest log (from $HOME/RetroPie-Setup/logs) to pastebin.com. Run the setup with __debug=1:

sudo __debug=1 ./retropie_setup.sh

Perseides

@mitu said in Q: Installing retropie on Openmediavault + Pi hole:

ip addr show

Thanks for your assistance.

The ip addr show and the log of the debug installation is here: https://pastebin.com/25xjTaqq

Note: I'm not sure if I'd copied the log correctly. I did it by using the command zcat (google search). Please tell me if I'd did anything wrong.

mitu

@perseides I think you're experiencing the same timeout as in this topic.

+ curl --max-time 5 -o /dev/null -sfI https://files.retropie.org.uk/binaries/buster/rpi4/kms/libretrocores/lr-picodrive.tar.gz
+ ret=28
+ [[ 28 -eq 0 ]]
+ [[ 28 -eq 22 ]]
+ return 2
+ ret=2
+ [[ 2 -ne 2 ]]
+ return 2
+ local ret=2
+ [[ 2 -eq 0 ]]
+ [[ 2 -eq 2 ]]
+ has_net=0
+ [[ 0 -eq 0 ]]
+ __ERRMSGS+=("Can't install/update $md_id - unable to connect to the internet")

It takes more than 5sec to make a HEAD request to the RetroPie's server. You can check by running

time curl --max-time 5 -sfI https://files.retropie.org.uk/binaries/buster/rpi3/libretrocores/lr-tyrquake.tar.gz

time curl -sfI https://files.retropie.org.uk/binaries/buster/rpi3/libretrocores/lr-tyrquake.tar.gz

and then adjust the timeout (temporarily) until we come up with a better solution.

What internet connection do you have ?

Perseides

You are right on target!! Thanks a lot!

I'm running on fiber with 100mbps up 50 mbps down, but I know my country's connection to Europe or US server had been in the sh*thole for the past few weeks, to the extend it impacted my work. (I'm in SEA).

Thanks for the information.
~~Can I ask how do i modify the package.sh? Is there a guide?~~
I'd edited the file and hopefully this solves the issue. Will update.

mitu

@perseides said in Q: Installing retropie on Openmediavault + Pi hole:

Can I ask how do i modify the package.sh? Is there a guide?

Just use a regular text editor (for instance nano) to make the modification. The file is in $HOME/RetroPie-Setup/scriptmodules/packages.sh and this is the line that needs to be modified (5 replaced with 6).

Perseides

Thanks. I'd completed the installation it without issue.