Disk /dev/sda: 298.09 GiB, 320072933376 bytes, 625142448 sectors Disk model: SAMSUNG HD322HJ 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 625141759 624091136 297.6G Linux filesystem Disk /dev/sdb: 465.76 GiB, 500107862016 bytes, 976773168 sectors Disk model: ST500DM002-1BD14 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/sdb1 2048 2097151 2095104 1023M Windows recovery environment /dev/sdb2 2097152 2834431 737280 360M EFI System /dev/sdb3 2834432 3096575 262144 128M Microsoft reserved /dev/sdb4 3096576 938241096 935144521 445.9G Microsoft basic data /dev/sdb5 938242048 939313151 1071104 523M Windows recovery environment /dev/sdb6 939313152 976756735 37443584 17.9G Microsoft basic data