Batocera configuration

Mount your shares

mount -o remount,rw /dev/mmcblk0p1 /boot/
vim /boot/batocera-boot.conf
...
# device to the share data (userdata)
# sharedevice=INTERNAL
...
# shares
sharedevice=NETWORK
sharenetwork_smb1=ROMS@nas:roms:credentials=/boot/.smb
sharenetwork_smb2=SAVES@nas:saves:credentials=/boot/.smb
sharenetwork_smb3=BIOS@nas:bios:credentials=/boot/.smb
...