Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xd012d012

Device Boot Start End Blocks Id System /dev/sda1 * 1 510 4096543+ 7 HPFS/NTFS /dev/sda2 1786 38913 298230629+ f W95 Ext'd (LBA) /dev/sda3 511 1785 10240000 83 Linux （在这里，sda3。你的可能是2，3，4，5，6.。。自己改下） /dev/sda5 1786 14583 102799892 b W95 FAT32 /dev/sda6 14584 23803 74059600 7 HPFS/NTFS /dev/sda7 23804 38913 121371043+ 7 HPFS/NTFS

Partition table entries are not in disk order Note: sector size is 2048 (not 512)

Disk /dev/sdb: 3946 MB, 3946838016 bytes 64 heads, 32 sectors/track, 940 cylinders Units = cylinders of 2048 * 2048 = 4194304 bytes Sector size (logical/physical): 2048 bytes / 2048 bytes I/O size (minimum/optimal): 2048 bytes / 2048 bytes Disk identifier: 0x00000000

Device Boot Start End Blocks Id System /dev/sdb1 1 941 3854326 b W95 FAT32 Partition 1 does not start on physical sector boundary. root@mm-desktop:~# mount /dev/sda3 /mnt （把sda3挂载到/mnt） root@mm-desktop:~# grub-install --root-directory=/mnt/ /dev/sda （安装grub2到主硬盘）