PS1 No BIOS found, expect errors

[g0nz0uk]

Hello,

I’m trying to get a game on the PS1 working and I get the message “No BIOS found, expect errors” when I try to run it.

I have added the BIOS files to /home/pi/RetroPie/BIOS like I do for the other emulators.

The main one I have added is SCPH1001.BIN

Any ideas why it isn’t seeing the BIOS file?

Also tried this

pi@raspberry ~ $ cd /opt/retropie/configs/psx
pi@raspberry /opt/retropie/configs/psx $ nano retroarch.cfg
Added the following line to the bottom of this file:

system_directory= /home/pi/RetroPie/BIOS

[dankcushions]

long shot, but are you sure it’s “RetroPie” ? on my system it’s lowercase. i imagine it’s all case sensitive as per the rest of the operating system.

(ignore this, mine is RetroPie also!)

[petrockblog]

I think it should be lowercase.

Check the checksum also

http://wiki.libretro.com/index.php?title=PCSX_ReARMed

[petrockblog]

if it works lowercase then please do update the wiki page https://github.com/RetroPie/RetroPie-Setup/wiki/Playstation-1

[g0nz0uk]

renamed to scph1001.bin and still get the same error

[petrockblog]

Did you compare the checksum ?

[g0nz0uk]

Sorry I missed that part, I’ve just looked at the link but can’t see how I verify the checksum, how do I check it’s the right checksum?

[petrockblog]

Google “how to checksum a file md5” or something – if on windows there are gui tools. on terminal on linux you can use “md5sum [file]”

[g0nz0uk]

Checksum is fine.

Just defaults to the HLE BIOS.

It’s as if Retroarch isn’t even looking the BIOS folder for these files. Is the path set somewhere as I can’t see it in the Retroarch.cfg?

[Floob]

Can you confirm you are using RetroPie 3.1 (or 3.2 or other) from the image provided on this site, as opposed to a source or binary install? Then I’ll do the same test and check it out.

[g0nz0uk]

I’m using 3.1 from this site, thanks.

[Floob]

Ok, I wrote a clean 3.1 to the SD card, expanded the filesystem and copied

SCPH1001.BIN to the folder /home/pi/RetroPie/BIOS

The filesize of the file I used is 524,288 bytes and has an MD5 of
924e392ed05558ffdb115408c263dccf

that worked fine with the PSX games I tried, it worked fine upper or lower case.
It couldnt find the bios file if I renamed it to a random filename.

What is the MD5 of your BIOS? Does it match any here?
https://github.com/RetroPie/RetroPie-Setup/wiki/Playstation-1

[g0nz0uk]

Hi, mine looks fine, see image, I’m on 3.1 too.

[Floob]

If you can confirm the user Pi has permission to read the bios file I would think it may be a customisation you have made to a config file.
On my test I made no changes to them at all and it works fine.
Are you able to reset them or try on a separate SD card to test?

[g0nz0uk]

Hi Floob, I’m not sure how to check the permissions so will Google this and let you know.

I’ve ordered a new SD card and will put the latest version on it.

[g0nz0uk]

Permissions look good on the file:

\\RETROPIE\configs\psx\Retroarch.cfg

Pi user has read/write access
Pi group has read access

Are you able to compare my retroarch file with yours?

https://www.dropbox.com/s/gjvls7ql98195a1/retroarch.cfg?dl=0

[Floob]

I mean what are the permissions on the bios file.

What do you get if you use PuTTY and logon to the Pi, run this command
ls -lah /home/pi/RetroPie/BIOS/{BIOS filename}

Your retroarch.cfg is wildly different to what you really need.
Here are the originals, untouched which is what I’m using

/opt/retropie/configs/all/retroarch.cfg
http://pastebin.com/raw.php?i=15Nan1C1

/opt/retropie/configs/psx/retroarch.cfg
http://pastebin.com/raw.php?i=bUYH1A5b

If you really want to edit your system specific retroarch.cfg with custom settings for RetroArch, check this video out

[g0nz0uk]

Thanks Floob, I will test this tonight. Thanks for your time on this, most appreciated.

[g0nz0uk]

First part:

pi@retropie ~ $ ls -lah /home/pi/RetroPie/BIOS/scph1001.bin
-rw-r–r– 1 pi pi 512K Oct 28 13:53 /home/pi/RetroPie/BIOS/scph1001.bin

[g0nz0uk]

Adding system_directory = /home/pi/RetroPie/BIOS to opt/retropie/configs/all/retroarch.cfg fixed it.

If I edit /opt/retropie/configs/psx/retroarch.cfg it gets overwritting by the contents of /opt/retropie/configs/psx/retroarch.cfg – weird eh.

I tested WipEout 3 and maybe it is the power of the Pi2 but, the sound stutters at times, plus the graphics are grainy, I wondered if there are any tweaks/Filters?

Thanks

[dankcushions]

there’s an option to increase the resolution – have a look in the retroarch menu under ‘core options’. i forget what it’s called. however, it’ll probably just exacerbate your sound stutters! PCSX has no texture filters, aside from all the usual retroarch entire screen shaders.

[Floob]

Does the performance on your WipeOut match the video here?
Although first I would sort out those retroarch.cfg files – I dont know what you mean when you say that file overwrites itself. I’d be tempted to start with a clean install – or at least just use the defaults I provided above.

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