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Windows 7 在加载时从 Grub 列表中消失

tag-icon • tag-icon 12.04 dual-boot grub2
Windows 7 在加载时从 Grub 列表中消失

两周前安装了 Ubuntu 12.04 和 Windows 7。最初没有任何问题。前天在 Ubuntu 上安装了更新，重启系统后发现 Grub 列表中没有 Win7。之前硬盘被分成两个卷：磁盘 C 和工作磁盘（不记得名字了）。执行以下操作时fdisk -l：

Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xa93031e0

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048   408833842   204415897+   7  HPFS/NTFS/exFAT
/dev/sda2       488386560   976773119   244193280    7  HPFS/NTFS/exFAT
/dev/sda3       408834046   488386559    39776257    5  Extended
Partition 3 does not start on physical sector boundary.
/dev/sda5       408834048   484421631    37793792   83  Linux
/dev/sda6       484423680   488386559     1981440   82  Linux swap / Solaris

Partition table entries are not in disk order

Disk /dev/mmcblk0: 3965 MB, 3965190144 bytes
49 heads, 48 sectors/track, 3292 cylinders, total 7744512 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: 0x00000000

        Device Boot      Start         End      Blocks   Id  System
/dev/mmcblk0p1            8192     7744511     3868160    b  W95 FAT32

何时sudo mount /dev/sda ~/1 -o offset [488386560*512] - 打开并安装 WORK 磁盘。

需要帮助：如何查看和挂载磁盘 C。如何查看和调整 Grub 以在加载时在 Grub 菜单中显示两个系统？

答案1

也许在更新过程中重建 grub 时出现了一点错误，请尝试执行

sudo update-grub

看看它是否生成它

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