How to add SD card as an additional G-code directory in Mainsail

Hi everyone,

I'm using a CB2 board inside a BigTreeTech Pad 7, and everything is working great. I've installed the OS from the SD card to the eMMC storage successfully.

Now, I'd like to use the SD card as additional storage — specifically, I want to upload and print G-code files directly from the SD card.

I've already set up the system so that the SD card is mounted at boot (formatted as ext4), and it's available at /mnt/sdcard.

However, I can't figure out how to configure Mainsail and Moonraker to access this directory through the web interface.

What exactly do I need to add in moonraker.conf and mainsail.conf so that the SD card shows up as an additional G-code folder (or selectable source) in the Mainsail UI under the "G-codes" tab?

Thanks a lot in advance for your help!

Start by reading the Moonraker and Mainsail configuration references named in the issue, using /mnt/sdcard as the relevant mounted path. Done means the SD card appears as an additional selectable G-code source in the Mainsail UI and files can be uploaded and printed from it.

Written by the indexing model from the issue text.