Originally Posted by sbdags
Use gparted. See CROMBi-kk post 2.
I have the same issue. When I booted into gparted, I got through the menu, but it hung on the screen where it loads the drives (Searching /devs/sdg partitions).
Is there a way to wipe the sd card of the previous partitions, etc. to start over? (other than in gparted which I can't seem to get into)
I also tried the flashing data2sd method in twrp but right after flashing format data failed.
Phone: HTC One (AT&T) ROM:SkyDragon
Tablet: Asus TF700T ROM: CROMBi-kk