Ubuntu 13.04 在安装过程中未检测到 Windows 7

Question

我正在尝试在我的上网本上安装最新的 Ubuntu 13.04，但安装无法检测到机器上安装的任何操作系统。并要求我清除整个磁盘或重新分区。我已经在我的系统上安装了 Windows 7 Strater、Android x-86 和 Meego。

安装时提示“此计算机当前未检测到操作系统”

这是sudo sfdisk -luS && sudo fdisk -l的输出：

    Disk /dev/sda: 30401 cylinders, 255 heads, 63 sectors/track
Warning: extended partition does not start at a cylinder boundary.
DOS and Linux will interpret the contents differently.
Units = sectors of 512 bytes, counting from 0

   Device Boot    Start       End   #sectors  Id  System
/dev/sda1   *      2048    411647     409600   7  HPFS/NTFS/exFAT
/dev/sda2        411648 396642303  396230656   7  HPFS/NTFS/exFAT
/dev/sda3     396646337 488392064   91745728   f  W95 Ext'd (LBA)
/dev/sda4     457453632 474062084   16608453   7  HPFS/NTFS/exFAT
/dev/sda5     396646400 440594431   43948032   7  HPFS/NTFS/exFAT
/dev/sda6     440594433 441004034     409602  83  Linux
/dev/sda7     441004036 442028037    1024002  82  Linux swap / Solaris
/dev/sda8     442028039 457453567   15425529  83  Linux

Disk /dev/sdb: 1022 cylinders, 124 heads, 62 sectors/track
Warning: The partition table looks like it was made
  for C/H/S=*/255/63 (instead of 1022/124/62).
For this listing I'll assume that geometry.
Units = sectors of 512 bytes, counting from 0

   Device Boot    Start       End   #sectors  Id  System
/dev/sdb1   *        63   7864319    7864257   b  W95 FAT32
        end: (c,h,s) expected (489,135,30) found (208,254,63)
/dev/sdb2             0         -          0   0  Empty
/dev/sdb3             0         -          0   0  Empty
/dev/sdb4             0         -          0   0  Empty

Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 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: 0x9c5506cc

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      411647      204800    7  HPFS/NTFS/exFAT
/dev/sda2          411648   396642303   198115328    7  HPFS/NTFS/exFAT
/dev/sda3       396646337   488392064    45872864    f  W95 Ext'd (LBA)
/dev/sda4       457453632   474062084     8304226+   7  HPFS/NTFS/exFAT
/dev/sda5       396646400   440594431    21974016    7  HPFS/NTFS/exFAT
/dev/sda6       440594433   441004034      204801   83  Linux
/dev/sda7       441004036   442028037      512001   82  Linux swap / Solaris
/dev/sda8       442028039   457453567     7712764+  83  Linux

Disk /dev/sdb: 4026 MB, 4026531840 bytes
255 heads, 63 sectors/track, 489 cylinders, total 7864320 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: 0xc3072e18

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *          63     7864319     3932128+   b  W95 FAT32

我已经尝试过这种解决方法，但在我的情况下它不起作用。任何及时的帮助将不胜感激。我请求版主不要立即关闭这个问题，即使他们认为之前已经解决了，因为这些解决方案对我不起作用。

提前致谢。

编辑：现在我已经删除了另外两个操作系统，即 Meego 和 Android-x86，但仍然无济于事。分区表现在看起来像这样。

Disk /dev/sda: 30401 cylinders, 255 heads, 63 sectors/track
Units = sectors of 512 bytes, counting from 0

   Device Boot    Start       End   #sectors  Id  System
/dev/sda1          2048    411647     409600   7  HPFS/NTFS/exFAT
/dev/sda2   *    411648 396642303  396230656   7  HPFS/NTFS/exFAT
/dev/sda3     457453637 471796919   14343283  17  Hidden HPFS/NTFS
/dev/sda4     396644850 488392064   91747215   f  W95 Ext'd (LBA)
/dev/sda5     396644913 457450874   60805962   7  HPFS/NTFS/exFAT
/dev/sda6     471796983 488392064   16595082   7  HPFS/NTFS/exFAT

请帮忙！！

Answer 1

好吧，我终于使用 fixparts 命令解决了这个问题……它需要安装 gdisk 实用程序。

以下是我为进行安装而运行的命令。

$ sudo apt-get install gdisk
$ sudo fixparts /dev/sda
and then press the key 'w'

完毕！

有关 FixParts 是什么及其用途的更多信息，请访问rodsbooks。FixParts 由同一作者的项目 GPT fdisk（包括 gdisk、sgdisk 和 cgdisk）演变而来