Single Boot ROM

Azurden

Hey all, I have seen the posts for the single boot ROM for a dedicated arcade cab. And I have been able to get this to work with MAME. However, I am trying to do this with a MegaDrive ROM for Genesis without luck. I have been able to launch the ROM from RetroPi without issue. But when I use the following in autostart.sh and reboot it comes up that is loading the ROM message, but then does not start the game, just goes to the pi prompt.

This is what I have tried to use.

/opt/retropie/supplementary/runcommand/runcommand.sh 0 SYS megadrive ~/RetroPie/roms/megadrive/ROMNAME.bin

and

/opt/retropie/supplementary/runcommand/runcommand.sh 0 SYS megadrive ~/RetroPie/roms/megadrive/ROMNAME

and

/opt/retropie/supplementary/runcommand/runcommand.sh 0 SYS megadrive /home/pi/RetroPie/roms/megadrive/ROMNAME.bin

and

/opt/retropie/supplementary/runcommand/runcommand.sh 0 SYS megadrive /home/pi/RetroPie/roms/megadrive/ROMNAME

Any idea why this would not work?

Azurden

Perhaps I need to use one of these?

Master System lr-Genesis-Plus-GX, lr-picodrive, Osmose .7z .bin .sms .zip I do see lr-picodrive come up when it says it is trying to launch the game before it goes back to the prompt.

/opt/retropie/supplementary/runcommand/runcommand.sh 0 SYS lr-picodrive ~/RetroPie/roms/megadrive/ROMNAME

mitu

@Azurden Launch the game as normal, then open the /var/shm/runcommand.log file to see the full command line used to start the ROM. Also, take a look in the docs.

Azurden

@mitu Sorry new to Pi and all.. So do a..

sudo nano /var/shm/runcommand.log

mitu

@Azurden I don't understand what you're trying to say. If you need to look at that file, exit Emulationstation and use nano to open the file and take a look at it.

Azurden

So tried to run it and says the file is not there. Did a WINSCP to the pi and I do not see the shm folder in the var folder?

mitu

@Azurden Sorry, I meant /dev/shm/runcommand.log - I probably copied your input by mistake.

Azurden

Ok found the dir but no runcommand.log in there. Just a rpmanager.log

Azurden

Sorry has to refresh...

This is what it had...

Parameters:
Executing: /opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-picodrive/picodrive_libretro.so --config /opt/retropie/configs/megadrive/retroarch.cfg "/home/pi/RetroPie/roms/megadrive/FixItFelixJr.bin" --appendconfig /dev/shm/retroarch.cfg'|'"/home/pi/RetroPie/roms/megadrive/FixItFelixJr.bin.cfg"
Failed to open /home/pi/RetroPie/roms/megadrive/FixItFelixJr.srm: No such file or directory

What I dont understand is it does launch when I do this via retropi...

mitu

@Azurden said in Single Boot ROM:

/opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-picodrive/picodrive_libretro.so --config /opt/retropie/configs/megadrive/retroarch.cfg "/home/pi/RetroPie/roms/megadrive/FixItFelixJr.bin"

So the command line is

/opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-picodrive/picodrive_libretro.so --config /opt/retropie/configs/megadrive/retroarch.cfg "/home/pi/RetroPie/roms/megadrive/FixItFelixJr.bin"

You can use that as your command to boot a single ROM.

Azurden

Here is what it puts out in the log when I try to boot right to the .binand it fails to launch

Parameters:
Executing: /opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-picodrive/picodrive_libretro.so --config /opt/retropie/configs/megadrive/retroarch.cfg "/home/pi/RetroPie/roms/megadrive/FixItFelixJr" --appendconfig /dev/shm/retroarch.cfg

mitu

@Azurden You forgot the .bin extension of the ROM in the command line.

Azurden

@mitu yea I tried it both ways, with and without the .bin

I did use this that you posted

/opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-picodrive/picodrive_libretro.so --config /opt/retropie/configs/megadrive/retroarch.cfg "/home/pi/RetroPie/roms/megadrive/FixItFelixJr.bin"

and it did work. Awesome way to find out what the path is... Thank you!

I do keep getting this message when it booted still.

Failed to open /home/pi/RetroPie/roms/megadrive/FixItFelixJr.srm: No such file or directory

Anything I can do to remove or suppress this? Building a custom cab for this and would like it to just boot direct without the message showing.

stoney66

srm is a save file (not saved state file), maybe launch the game and do an in game save if it has that option? Not sure if you can just create a blank file with that name and have the error go away e.g. touch /home/pi/RetroPie/roms/megadrive/FixItFelixJr.srm

hhromic

You can also redirect all errors to a file like runcommand does, this will keep it clean on the console and still let you see/inspect if something goes wrong:

# Launch FixItFelixJr
/opt/retropie/emulators/retroarch/bin/retroarch \
    -L /opt/retropie/libretrocores/lr-picodrive/picodrive_libretro.so \
    --config /opt/retropie/configs/megadrive/retroarch.cfg \ 
    "/home/pi/RetroPie/roms/megadrive/FixItFelixJr.bin" \
    2>&1 >/dev/shm/fixitfelixjr.log

Edit: btw not finding srm files is normal if the games don't save to nvram.

hhromic

On a second thought, even better would be to actually use runcommand, taking advantage of its goodies such as video mode settings and emulator selection:

# Launch FixItFelixJr
/opt/retropie/supplementary/runcommand/runcommand.sh 0 _SYS_ megadrive "/home/pi/RetroPie/roms/megadrive/FixItFelixJr.bin"

Runcommand also prepares the console like hiding the cursor and even can display a splash screen art if configured. This is the way EmulationStation launches games and you also get the benefit of error messages being logged to /dev/shm/runcommand.log for debugging.