Похоже в таблице разделов:
root@debm:~# fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x10639a1b
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 42014719 21006336 83 Linux
/dev/sda2 42014720 86423551 22204416 83 Linux
/dev/sda3 86423552 132722687 23149568 83 Linux
/dev/sda4 132724734 976773119 422024193 5 Extended
Partition 4 does not start on physical sector boundary.
/dev/sda5 132724736 181047295 24161280 83 Linux
/dev/sda6 272498688 284467199 5984256 83 Linux
/dev/sda7 284469248 339853311 27692032 b W95 FAT32
/dev/sda8 339855360 966584319 313364480 83 Linux
/dev/sda9 966586368 976773119 5093376 82 Linux swap / Solaris
/dev/sda10 181049344 272496639 45723648 83 Linux
Partition table entries are not in disk order
file:///home/serg/Desktop/%D0%A1%D0%BD%D0%B8%D0%BC%D0%BE%D0%BA.png
На gparted это лучше видно.