Disk /dev/sdb: 15.22 GiB, 16336814080 bytes, 31907840 sectors
Disk model: SD/MMC
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000
Warning: The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes.
wipefs is a useful tool to show us what filesystems exist on the drive.
root@mint:/home/mint# wipefs /dev/sdb
DEVICE OFFSET TYPE UUID LABEL
sdb 0x52 vfat 53E2-5BC6
sdb 0x0 vfat 53E2-5BC6
sdb 0x1fe vfat 53E2-5BC6
Make sure you have backed up any data.
Change sdX below with the actual drive you want to do this to.
wipefs --all /dev/sdX
descriptor, bytes, linux, solutiondisk, dev, sdb, gib, sectors, disk, mmc, sector, optimal, disklabel, dos, identifier, fdisk, output, format, wipefs, filesystems, mint, offset, uuid, label, vfat, bc, fe, sdx,