Disk /dev/sda: 476.96 GiB, 512110190592 bytes, 1000215216 sectors Disk model: Micron_1100_MTFD 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 1050623 1048576 512M EFI System /dev/sda2 1050624 2549759 1499136 732M Linux filesystem /dev/sda3 2549760 1000214527 997664768 475.7G Linux filesystem Disk /dev/mapper/XXXXXXXXXXX 475.73 GiB, 510787584000 bytes, 997632000 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 Disk /dev/mapper/XXXXXXXXXXXX 474.77 GiB, 509758930944 bytes, 995622912 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 Disk /dev/mapper/XXXXXXXXXXXXXX 980 MiB, 1027604480 bytes, 2007040 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