- Unmount USB partitions
sudo umount /dev/sda* - Wipe boot/ISO signatures
sudo wipefs -a /dev/sda - Create fresh partition table
sudo parted /dev/sda --script mklabel msdos - Create 1 full size partition
sudo parted /dev/sda --script mkpart primary fat32 1MiB 100% - Format as FAT32
sudo mkfs.vfat -F 32 /dev/sda1 - Verify its clean
lsblk -f - Reconnect USB
udisksctl mount -b /dev/sda1
Optional:
- Give it a name:
sudo fatlabel /dev/sda1 USBDRIVE