Model: ATA Samsung SSD 840 (scsi)
Disk /dev/sda: 250GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start   End    Size    File system     Name                  Flags
 1      1049kB  538MB  537MB   fat32           EFI System Partition  boot, esp
 2      538MB   242GB  241GB   ext4
 3      242GB   250GB  8469MB  linux-swap(v1)


Warning: The driver descriptor says the physical block size is 2048 bytes, but
Linux says it is 512 bytes.
Ignore/Cancel? Ignore
Model: USB Flash Disk (scsi)
Disk /dev/sdb: 8020MB
Sector size (logical/physical): 2048B/512B
Partition Table: mac
Disk Flags: 

Number  Start   End     Size    File system  Name   Flags
 1      2048B   6143B   4096B                Apple
 2      1167MB  1169MB  2327kB               EFI