我终于在我的第二个驱动器上安装了 Ubuntu。当我启动我的计算机时，GRUB 只提供我启动 Ubuntu，而不是 Windows 7。需要做什么才能在 GRUB 中选择 Ubuntu 和 Windows？
当我在启动时按 F12 进入启动菜单并选择Windows Boot Manager它启动到 Windows 7 时。
我运行命令sudo fdisk -l，这里是日志（http://pastebin.com/Cgv1igHc）：
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes …我试图在安装了 Windows 7 的情况下安装 Ubuntu 12.10。我正在按照页面上的所有步骤进行操作，但它只是没有让我选择单击并排安装它们。它只是说明没有检测到操作系统。之后，我运行引导修复并收到以下日志：
Boot Info Script 0.61.full + Boot-Repair extra info [Boot-Info September 18th 2012]
============================= Boot Info Summary: ===============================
=> No boot loader is installed in the MBR of /dev/sda.
sda1: __________________________________________________________________________
File system: vfat
Boot sector type: Windows 7: FAT32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sda2: __________________________________________________________________________
File system:
Boot sector type: -
Boot sector info:
Mounting failed: mount: unknown filesystem type '' …