Hello and welcome to this forum. Please provide us with all of the information that is asked for in https://retropie.org.uk/forum/topic/3/read-this-first to help us pinpoint the problem.

It was the bloody power source! I didn't bother hooking it up to a decent power brick because I figured the Pi zero didn't need as much juice as my Pi 3... Idiot... Thanks for your inputs guys.

@mitu said in Raspberry Pi4 Image: @geekinchief As it was explained in the other topic you opened a few days back and is also explained here, the Pi4 is not supported at the moment by RetroPie. There's more than just Emulationstation than needs modification and testing for it to make it work, so just bypassing the front-end would not be enough. OMGzorz the Pi4 has been out for OvEr a WeEk NoW!!! Where's my support?? I wanna play PS3 games!!! </sarcasm>

@KobeT Looks like a damaged SD card or improper power source - see https://elinux.org/R-Pi_Troubleshooting#Coloured_splash_screen for reasons why this might happen and maybe try the config.txt modification suggested on the page.

So, I have mounted the PowerBlock and I have tested it for some days. It works almost as expected, spordically it shows unexpected behaviour. I will create a separate thread explaining my observations. Anyway, thanks for supplying me with a replacement device.

Hi there! I extract all the roms, configs, images, gamelists, themes, etc... and build a new sd card now with Stretch. Now, scraper work properly. You can close the thread. Thank you very much!

@lawarmotte no worries, you're not the first person to make this mistake. :)

@kingcraze Hi, first, post the details requested here: https://retropie.org.uk/forum/topic/3/read-this-first How did you write the image? Is your card genuine?

@Clyde said in External Boot in my image: @MPlay Thank you for sharing your solution. you are welcome, my next step is set retropie to stream my game play (if possible in net play mode) in my youtube channel. thank you and other friends for support.

Thanks for your help :-)

@archer Glad it worked! Anytime I have issues with displays I try to SSH/SFTP in to see if the Pi is actually up and running or if it's just not booting. I have them in my Amazon cart , just waiting to pull the trigger 😁. I will let you know how they compare.

@xvo said in Can anyone help me, strange things happening at boot: without ever using ssh again... :( Changing the default password should be sufficient...

@totallyice Please re-read my previous message. Your system is stuck in a reboot loop so you're not going to be able to access the command line to make any modifications to fix the problem. In order to fix this error, you'll need to delete/disable the Controlblock service, but you'll either need a Linux computer to read the card's Linux partition (won't work from Windows/macOS) or you can try booting into 'safe mode' on your PI system to have a command line to make modifications. See https://retropie.org.uk/forum/topic/672/a-stop-job-is-running-for-lsb-controlblockservice-init-script/13.

@dankcushions Ok thanks my Raspberry Pi is running now thanks!

@dereksanderson Firstly, the Raspberry Pi is an ARM based single board computer as opposed to a x86 intel based pc. You cannot therefore expect a linux based "image" that has been configured for a Raspberry Pi to boot on a pc. You will need to follow the documentation to achieve what you want... https://github.com/RetroPie/RetroPie-Setup/wiki/Debian Second thing to note regarding "a great image from MLPIXEL (a 32GB) which boots on Rasperry Pi ". If this has roms then it is illegal. You should check out point 5 of https://retropie.org.uk/forum/topic/3/read-this-first as indicated from @buzz as I was typing this very line.

The length and quality of your HDMI cable could actually have been the culprit, as you said. You may want to try with a better/shorter cable. Another way could be to boost the HDMI signal by editing config.txt, see here : https://elinux.org/RPiconfig#Video But a good cable is a better solution.

This turned out to be a bad power source, by the way. Replaced the power adapter and it booted up fine.

I can confirm it was the SD card. I bought a new one and made all updates. After that everything runs as intended. :) PS: I buyed a more expensive SanDisk Extreme. Much faster than the SanDisk Ultra I had before!

Ok, that did the trick. Strangely though, after I changed the setting and tried getting back into the UI, the graphics were all black sans the menu options in the lower left. Went ahead and did a basic install, and now I'm back in business. Thanks @AlexMurphy and @BuZz !! Now to get Reicast working...

@jlauerutk said in Retropie / RPi Zero Wont boot after 2 days working: @AlexMurphy so dumb question time... What is the best way to shut down ? There are many ways. You can press start, navigate to quit, and select shutdown. You can build a button attached to the gpio that sends a shutdown command. You can use an addon board to send this signal and to completely shut down the power so that you don't have to pull the plug anymore. You can ssh and sudo shutdown The main thing is to pick a method and always do it.