Disk /dev/sda: 465.76 GiB, 500107862016 bytes, 976773168 sectors Disk model: TOSHIBA MQ01ABF0 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 4096 618495 614400 300M EFI System /dev/sda2 618496 959417508 958799013 457.2G Linux filesystem /dev/sda3 959417509 976768064 17350556 8.3G Linux swap Partition 3 does not start on physical sector boundary.