Disk /dev/sda: 232.91 GiB, 250059350016 bytes, 488397168 sectors Disk model: Samsung SSD 850 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 4095 2048 1M BIOS boot /dev/sda2 4096 1054719 1050624 513M EFI System /dev/sda3 1054720 488396799 487342080 232.4G Linux filesystem