Mounting external device just for cd based games

[robmcc83]

Hi all,

Been i while since ive been here as i have not had any problems for a while :)
This is not a problem, just would like to know the correct way to do this.

So im using a pi3b+ stock 4.6 official image all updated to latest 4.6.6 i believe.

i already have a 32gb sd card with tons of arcade and cartridge based sytems installed along with retropie.

I am wanting to mount a usb 32gb sandisk flash stick with cd based games (psx & sega cd)

I know how to mount the device the manual way but what i want to know is do i need 2 seperate mounts for each console or can i mount the usb device with just a structure like roms/ "psx" & "segacd" then just mount that to /home/pi/roms and it will replace the ones that are currently on the memory card.

Thanks in advance

[Clyde]

You can mount the usb stick once and then either link or mount its directories. For this simple purpose, links and mounts should be mere preference, although they have some differences. I prefer mounts for their heightened transparency to the system, but others prefer links.

Just search the web for either "linux symlinks" or "linux bind mount" for a ton of how-tos about them, like this one or this one.

edit: If you put the contents of roms in the root directory of the stick, you can also mount it directly onto the roms dir on your memory card. Mind that this will make anything in the card's roms dir unavailable for the duration of the mount.