Disk /dev/loop0: 2.53 GiB, 2718560256 bytes, 5309688 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 1048576 bytes Disk /dev/sdb: 476.94 GiB, 512110190592 bytes, 1000215216 sectors Disk model: HFS512G39TND-N21 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 1048576 bytes Disklabel type: gpt Disk identifier: -- Device Start End Sectors Size Type /dev/sdb1 2048 206847 204800 100M EFI System /dev/sdb2 206848 239615 32768 16M Microsoft reserved /dev/sdb3 239616 999137565 998897950 476.3G Microsoft basic data /dev/sdb4 999141376 1000214527 1073152 524M Windows recovery environment Disk /dev/sda: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors Disk model: WDC WD10EZEX-21W Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 1048576 bytes Disklabel type: gpt Disk identifier: -- Device Start End Sectors Size Type /dev/sda1 34 32767 32734 16M Microsoft reserved /dev/sda2 32768 1953521663 1953488896 931.5G Microsoft basic data Partition 1 does not start on physical sector boundary. Disk /dev/zram0: 3.86 GiB, 4141350912 bytes, 1011072 sectors Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes