output of sudo fdisk -l

gistfile1.txt

# flash drive made with sudo dd bs=4M if=ubuntu-16.10-desktop-amd64.iso of=/dev/sdb
Disk /dev/sdb: 3.8 GiB, 4009754624 bytes, 7831552 sectors
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: 0x05e037df

Device     Boot   Start     End Sectors  Size Id Type
/dev/sdb1  *          0 3112959 3112960  1.5G  0 Empty
/dev/sdb2       3089492 3094291    4800  2.4M ef EFI (FAT-12/16/32)

# flash drive made with UNetbootin on macOS
Disk /dev/sdd: 3.8 GiB, 4038066176 bytes, 7886848 sectors
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: 0x00021371

Device     Boot Start     End Sectors  Size Id Type
/dev/sdd1  *        1 7886847 7886847  3.8G  c W95 FAT32 (LBA)