Вот я сравниваю ваш вывод fdisk -l со своим:
# fdisk -l /dev/sdg
Disk /dev/sdg: 232,9 GiB, 250059350016 bytes, 488397168 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: 0x0000b2d3
Device Boot Start End Sectors Size Id Type
/dev/sdg1 * 63 61432559 61432497 29,3G 7 HPFS/NTFS/exFAT
/dev/sdg2 61432560 488392064 426959505 203,6G 83 Linux
и не вижу у вас:
Disklabel type: dos