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我有一台笔记本电脑Debian 7,Windows 7的和Ubuntu 13.04。我决定升级到Ubuntu 13.10,并安装了Ubuntu重新分區。
重新安装后,Windows 7的从 grub 菜单中消失了。我用 live cd 启动了机器,然后开始启动修复。
引导修复似乎已经识别出已安装的操作系统, 包括视窗分割:
...
sda5: __________________________________________________________________________
File system: ext4
Boot sector type: Grub2 (v1.99-2.00)
Boot sector info: Grub2 (v1.99-2.00) is installed in the boot sector of
sda5 and looks at sector 817082808 of the same hard
drive for core.img, but core.img can not be found at
this location.
Operating System: Ubuntu 13.10
Boot files: /boot/grub/grub.cfg /etc/fstab
/boot/grub/i386-pc/core.img
...
安装顺利,没有出现任何错误:
grub-install (GRUB) 2.00-19ubuntu2.1,grub-install (GRUB) 2.
Reinstall the GRUB of sda5 into the MBR of sda
Installation finished. No error reported.
grub-install /dev/sda: exit code of grub-install /dev/sda:0
chroot /mnt/boot-sav/sda5 update-grub
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.11.0-15-generic
Found initrd image: /boot/initrd.img-3.11.0-15-generic
Found linux image: /boot/vmlinuz-3.11.0-12-generic
Found initrd image: /boot/initrd.img-3.11.0-12-generic
Found Debian GNU/Linux (7.0) on /dev/sda6
Unhide GRUB boot menu in sda5/boot/grub/grub.cfg
Boot successfully repaired.
You can now reboot your computer.
完整报告可查看这里。
重启后,我只看到Ubuntu和Debian记录在 grub 中,没有Windows 7的部分:
知道启动修复尝试出了什么问题吗?
答案1
说来也怪,update-grub
做了这个伎俩:
$ sudo update-grub
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.11.0-15-generic
Found initrd image: /boot/initrd.img-3.11.0-15-generic
Found linux image: /boot/vmlinuz-3.11.0-12-generic
Found initrd image: /boot/initrd.img-3.11.0-12-generic
Found Windows 8 (loader) on /dev/sda1
Found Windows 8 (loader) on /dev/sda2
Found Windows Recovery Environment (loader) on /dev/sda4
Found Debian GNU/Linux (7.0) on /dev/sda6
done
答案2
您可以尝试使用超级GRUB2针对您的问题的磁盘。