Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 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 identifier: 0x00000008

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1        2047        1023+  ee  GPT
/dev/sda2            2048     2047999     1022976   ef  EFI (FAT-12/16/32)
/dev/sda3         2048000   488396799   243174400   83  Linux