How to expand sd card?

I am using a 32gb artflix emuelec image for orange pi pc h3, i recorded it on a 64gb card, how can i expand the rest of the card so i can put more roms.

Hello. I have a similar problem with a 2GB img from Emuelec. Because of this, I can’t extend because I’m stuck with another “healthy” 2GB partition, the rest of my unallocated micro SD not accessible. How to merge them with the EMUELEC partition. Thank you for your help.

On linux gparted can resize your ROM partition if there is enough storage on your sd card.

@zloty how big is your sd-card? You should use at least a 32gb card at the very minimum. The roms partition should automatically create and fill the cards storage on a clean install.