Bad offset in primary extended partition. Disk /dev/sdb: 279.37 GiB, 299966445568 bytes, 585871964 sectors Disk model: LOGICAL VOLUME 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: dos Disk identifier: -- Device Boot Start End Sectors Size Id Type /dev/sdb1 0 585937499 585937500 279.4G 5 Extended Disk /dev/sda: 1.36 TiB, 1499830990848 bytes, 2929357404 sectors Disk model: LOGICAL VOLUME 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: dos Disk identifier: -- Device Boot Start End Sectors Size Id Type /dev/sda1 * 2048 2099199 2097152 1G 83 Linux /dev/sda2 2099200 2929356799 2927257600 1.4T 8e Linux LVM Disk /dev/mapper/XXXXXXXX 70 GiB, 75161927680 bytes, 146800640 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/XXXXXXXX 1.29 TiB, 1423592914944 bytes, 2780454912 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/loop0: 16.65 GiB, 17875017728 bytes, 34912144 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