fdisk

Disk /dev/sda: 8 GiB, 8589934592 bytes, 16777216 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
Disklabel type: dos
Disk identifier: 0x5c2e89f5

Device     Boot    Start      End  Sectors  Size Id Type
/dev/sda1  *        2048 15988735 15986688  7.6G 83 Linux
/dev/sda2       15990782 16775167   784386  383M  5 Extended
/dev/sda5       15990784 16775167   784384  383M 82 Linux swap / Solaris

Disk /dev/sdb: 15 GiB, 16106127360 bytes, 31457280 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
Disklabel type: gpt
Disk identifier: F700B567-368F-4096-BB5B-6B2A5C670F10

Device        Start      End  Sectors  Size Type
/dev/sdb1      2048 20973567 20971520   10G Linux filesystem
/dev/sdb2  20973568 29362175  8388608    4G Linux filesystem
/dev/sdb3  29362176 31457246  2095071 1023M BIOS boot