Recover Grub after Windows 7 installation

Install Windows 7 and Debian 7 dual systems. Installed a second boot could not be found. Install Debian 7 First, then install Windows 7,debian Grub is overwritten. Here is my recovery operation, can be successful, record down, lest next encounter, but also find long time.

1. Making LIVEUSB System

To http://www.pendrivelinux.com/tag/live-linux-usb-creator/or http://www.linuxliveusb.com/to find a download, according to the installation can be.

2. Set the USB drive to boot in the BIOS. After booting into Debian Live, open a terminal as an administrator. First, you need to update the source, install GRUB-PC.

># apt-get Update

># Apt-get Install grub-pc

3. Use Fdisk-l to view the Linux partition. Assuming that the Debian root system is in the/DEV/SDA6 partition,/boot in the/DEV/SDA2 partition, mount the two partitions.

># fdisk-l

># mount/dev/sda6/mnt

># Mount/dev/sda2/mnt/boot

4. Installing Grub

># Grub-install--root-directory=/mnt//DEV/SDA

Success If it shows "installation finished. No error reported. ", otherwise, failed.

5. Bind the system running state on the mounted partition. This step is important, be sure to bind, or grub will not update anything.

># Mount--bind/proc/mnt/proc

># Mount--bind/dev/mnt/dev

># Mount--bind/sys/mnt/sys

6. Update Grub

># chroot/mnt Update-grub

7. Uninstalling the system operation status

># Umount/mnt/sys

># Umount/mnt/dev

># Umount/mnt/proc

8. OK, re-install grub successfully, reboot the system.

># reboot

Reference:

[1] http://blog.csdn.net/eric_jjc/article/details/5682210 This less binding system running state.

[2] http://www.ubuntugeek.com/how-to-restore-grub-boot-loader-after-installing-windows.html This less installs the grub-pc.