Disk /dev/sda: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors Disk model: SD Ultra 3D 2TB 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: gpt Disk identifier: -- Device Start End Sectors Size Type /dev/sda1 2048 18431 16384 8M BIOS boot /dev/sda2 18432 1282961407 1282942976 611.8G Linux filesystem /dev/sda3 1282961408 3890786303 2607824896 1.2T Linux filesystem /dev/sda4 3890786304 3907029134 16242831 7.7G Linux swap