Reply To: redirect rom folder to usb flashdrive?

[retrouser15]

Let me make the following assumptions for example purposes:

/dev/sdb1 is the partition for the flash drive
ext4 is used as the filesystem
flash drive mounted as /mnt/games

First we add the device to be mounted at boot (ignore filesystem checking, you can make this 0 2 if preferred for filesystem checking)
sudo echo "$(blkid /dev/sdb1 | cut -d' ' -f2) /mnt/usb ext4 defaults 0 0" >> /etc/fstab

Next we mv all the existing ROM data to the flash drive
mv /home/pi/RetroPie/roms /mnt/usb/roms

Create a symlink from the existing location to new
ln -s /mnt/usb/roms /home/pi/RetroPie/roms

Then all should be well.