Давайте данныеlsblk
sudo os-prober
val@val-K50AB:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 232,9G 0 disk
├─sda1 8:1 0 100M 0 part /media/val/Зарезервировано системой
├─sda2 8:2 0 9,5G 0 part /
├─sda3 8:3 0 1K 0 part
├─sda5 8:5 0 120,7G 0 part
├─sda6 8:6 0 50G 0 part
├─sda7 8:7 0 45,1G 0 part
├─sda8 8:8 0 5,3G 0 part /home
└─sda9 8:9 0 2,1G 0 part [SWAP]
sr0 11:0 1 1024M 0 rom
val@val-K50AB:~$ sudo os-prober
[sudo] password for val:
/dev/sda1:Windows 7 (loader):Windows:chain