在最初安装有 Windows 7 的计算机上，我通过创建两个新分区（根分区和交换分区）安装了 Ubuntu 14.04。
我现在已经安装了 grub，但似乎无法让 Windows 7（在另一个分区上）出现在 Grub 菜单中。
我尝试boot-repair按照其他同类问题的答案所建议的方式运行。我还尝试手动将分区添加到 grub 自定义文件中。
下面是部分输出，boot-repair表明我仍然有 Windows 7，并且没有意外覆盖它。
底部显示它已修复 Windows 启动问题，但仍然没有成功。
有人能在日志文件中看到确凿的证据吗boot-repair？
Boot Info Script cfd9efe + Boot-Repair extra info [Boot-Info 26Apr2016]
============================= Boot Info Summary: ===============================
=> Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for (,msdos1)/boot/grub. It also embeds following components:
modules
---------------------------------------------------------------------------
fshelp ext2 part_msdos biosdisk
---------------------------------------------------------------------------
=> Syslinux MBR (5.00 and higher) is installed in the MBR of /dev/sdb.
sda1: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 14.04.4 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab
/boot/grub/i386-pc/core.img
sda2: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 7/2008: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files: /Windows/System32/winload.exe
sda3: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 7/2008: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sda4: __________________________________________________________________________
File system: swap
Boot sector type: -
Boot sector info:
sdb1: __________________________________________________________________________
File system: vfat
Boot sector type: SYSLINUX 4.07
Boot sector info: Syslinux looks at sector 32776 of /dev/sdb1 for its
second stage. The integrity check of Syslinux failed.
No errors found in the Boot Parameter Block.
Operating System:
Boot files: /boot/grub/grub.cfg /syslinux.cfg /casper/vmlinuz.efi
/EFI/BOOT/grubx64.efi /ldlinux.sys
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 * 628,609,024 823,920,639 195,311,616 83 Linux
/dev/sda2 206,848 515,854,335 515,647,488 7 NTFS / exFAT / HPFS
/dev/sda3 515,854,336 628,609,023 112,754,688 7 NTFS / exFAT / HPFS
/dev/sda4 823,920,640 831,920,127 7,999,488 82 Linux swap / Solaris
Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 8019 MB, 8019509248 bytes
255 heads, 63 sectors/track, 974 cylinders, total 15663104 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdb1 * 2,048 15,663,103 15,661,056 c W95 FAT32 (LBA)
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 392af7fa-8735-4c0d-a0d8-fdfcb1d94b48 ext4
/dev/sda2 7E6060EC6060AD19 ntfs
/dev/sda3 F4A82B27A82AE836 ntfs Data
/dev/sda4 a4eb0099-6896-4e07-b07e-cb2b3cf485d9 swap
/dev/sdb1 3223-28B4 vfat UBUNTU 14_0
/dev/sr0 udf 8930_R9.bc
=================== Recommended repair
The default repair of the Boot-Repair utility will reinstall the grub2 of sda1 into the MBR of sda.
Additional repair will be performed: unhide-bootmenu-10s fix-windows-boot
Quantity of real Windows: 1
WinSE in sda2
/mnt/boot-sav/sda2/ may need repair.
/mnt/boot-sav/sda2/bootmgr may need repair.
*******lspci -nnk | grep -iA3 vga
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09)
Subsystem: Acer Incorporated [ALI] Device [1025:0579]
Kernel driver in use: i915
00:16.0 Communication controller [0780]: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 [8086:1c3a] (rev 04)
--
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108M [GeForce GT 540M] [10de:0df4] (rev a1)
Subsystem: Acer Incorporated [ALI] Device [1025:0579]
Kernel driver in use: nouveau
01:00.1 Audio device [0403]: NVIDIA Corporation GF108 High Definition Audio Controller [10de:0bea] (rev ff)
*******
grub-install --version
grub-install (GRUB) 2.02~beta2-9ubuntu1.7,grub-install (GRUB) 2.
Reinstall the GRUB of sda1 into the MBR of sda
Installing for i386-pc platform.
Installation finished. No error reported.
grub-install /dev/sda: exit code of grub-install /dev/sda:0
chroot /mnt/boot-sav/sda1 update-grub
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.2.0-27-generic
Found initrd image: /boot/initrd.img-4.2.0-27-generic
Found memtest86+ image: /boot/memtest86+.elf
Found memtest86+ image: /boot/memtest86+.bin
Unhide GRUB boot menu in sda1/boot/grub/grub.cfg
Boot successfully repaired.
You can now reboot your computer.