вот что выдает мне терминал привосстановлении GRUB
buntu@ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 40.1 GB, 40060403712 bytes
255 heads, 63 sectors/track, 4870 cylinders, total 78242976 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: 0xda710230
Device Boot Start End Blocks Id System
/dev/sda1 * 63 40965749 20482843+ 7 HPFS/NTFS/exFAT
/dev/sda2 40965750 78220484 18627367+ f W95 Ext'd (LBA)
/dev/sda5 40965813 78220484 18627336 7 HPFS/NTFS/exFAT
Disk /dev/sdb: 160.0 GB, 160040803840 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312579695 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: 0xfd88fd88
Device Boot Start End Blocks Id System
/dev/sdb1 * 2048 310482943 155240448 83 Linux
/dev/sdb2 310484990 312578047 1046529 5 Extended
/dev/sdb5 310484992 312578047 1046528 82 Linux swap / Solaris
ubuntu@ubuntu:~$ sudo mount /dev/sdb1 /mnt
mount: /dev/sdb1 already mounted or /mnt busy
mount: according to mtab, /dev/sdb1 is already mounted on /mnt
ubuntu@ubuntu:~$ sudo grub-install --root-directory=/mnt /dev/sdb
Installation finished. No error reported.
Пользователь решил продолжить мысль [time]30 Апрель 2015, 14:34:42[/time]:
Покажи вывод команд
sudo blkid
cat /etc/fstab
ubuntu@ubuntu:~$ sudo blkid
/dev/loop0: TYPE="squashfs"
/dev/sda1: UUID="A6641BC8641B99DF" TYPE="ntfs"
/dev/sda5: UUID="68F82524F824F24C" TYPE="ntfs"
/dev/sr0: LABEL="Ubuntu 12.04.2 LTS i386" TYPE="iso9660"
/dev/sdb1: UUID="01c3acc5-b4b7-4fca-8c5f-7ccc9aee2092" TYPE="ext4"
/dev/sdb5: UUID="b3d9b92b-766c-49bf-a4a8-2e7d003c79e5" TYPE="swap"
Пользователь решил продолжить мысль 30 Апреля 2015, 13:36:17:
Покажи вывод команд
sudo blkid
cat /etc/fstab
ubuntu@ubuntu:~$ cat /etc/fstab
overlayfs / overlayfs rw 0 0
tmpfs /tmp tmpfs nosuid,nodev 0 0
/dev/sdb5 swap swap defaults 0 0