Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: -- Device Start End Sectors Size Type /dev/sda1 2048 4095 2048 1M BIOS boot /dev/sda2 4096 41947135 41943040 20G Linux filesystem /dev/sda3 41947136 50139135 8192000 3.9G Linux filesystem /dev/sda4 50139136 976773119 926633984 441.9G Linux filesystem