Fix Ubuntu 13 04 boot menu under Windows 8

Win8+Ubuntu dual system repair grub process.

Preparation Tools: A liveCD is required

2. Use the shortcut key Ctrl+Alt+T to open the terminal and enter.

sudo -i

3. Continue typing in the terminal.

fdisk -l

5. Then enter in the terminal.

mount /dev/sda* /mnt

6. Complete step 5 and enter.

grub-install --root-directory=/mnt /dev/sda

Then reboot the system.

sudo update-grub

Then reboot the system and you will see the grub boot screen.

search /vmlinuz

Looking at the kernel location, if the boot partition is separated, it is usually in the directory, so at this time, it must be clear about the SDA partition in the fourth step. My kernel location is in sda5 and sda3 is my boot partition ,--

Linux vmlinu (autocomplete by tab) ro text root= dev sda5

Press Enter to continue typing.

initrd initrd (autocomplete by tab).

Enter boot to boot, enter ubuntu command mode, enter user and password, and enter.

sudo grub-install /dev/sda

sudo update-grub

sudo reboot now

Then you'll be happy to see the grub boot screen.

What method did you use to install the boot menu you said This boot menu is only available when the wubi method is installed, if it is installed on a USB flash drive or hard disk, it will not be there, only the grub boot menu.

Type: grub 2;The drive selects ubuntu's installation partition to try, anyway, I also use the U disk to install the normal boot.

Here's how to fix it:

After entering the U launch win8 system desktop, double-click to open the "Repair System Boot" tool, and click the "Automatic Repair" option in the pop-up window, as shown in the following figure:

Then wait patiently for the tool to repair the system boot, as shown in the figure below

After the system startup repair is completed, wait for the report to be generated, and in the generated report, we can see the prompt that the repair is successful, as shown in the following figure:

This is easy to do,Do U disk PE first,Use NTbootAutofix this small software in PE (attachments have been transmitted,In addition, PE generally has this software) to repair the boot of win。

In this way, you can successfully enter, and then use the easybcd software to add ubuntu to the boot, OK.

Add in boot grub.

titlewindows 8

rootnoverify (hd0,0)chainloader +1 these three lines, where (hd0,0) depends on which partition you install win8 into.

hdx, y), x is the hard disk on which the partition is located. For example, if you only have one hard drive. That's HD0. The second hard drive, this x, is 1.

y is the zone of the hard disk where it is located. The first partition is 0, including the hidden partition, if there is no hidden partition then the C drive is 0

HD0,0) is the first hard disk C drive that represents no hidden partition.