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Windows operating systems have the habit of installing their own bootloader on every installation - this wouldn't be a problem, if they would recognize all present operating systems. Vmware Player Serial Named Pipe there. But unfortunately, they only recognize other Windows systems. Apart from installing EasyBCD and other tools on your Windows partition to set things right, you can also just reinstall the lost GRUB boot manager with the help of a live CD (I used Ubuntu 11.10 for that). Insert the CD and boot from it. Open a terminal. If you have no idea what the name of your partitions is, use fdisk -l to get an overview. My output looks like this: christian-main christian # fdisk -l Disk /dev/sda: 500.1 GB, 16 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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: 0x000587d5.

Repair your Windows 7 boot loader (MBR) from Ubuntu dual boot. Repair MBR (Windows Boot Loader) From Ubuntu. The Fedora installation, and I want to restore.

Device Boot Start End Blocks Id System /dev/sda1 92+ 83 Linux /dev/sda2 * 62910320 7 HPFS/NTFS/exFAT /dev/sda3 77596064 7 HPFS/NTFS/exFAT /dev/sda4 9683934+ 5 Extended /dev/sda5 9683933+ 82 Linux swap / Solaris christian-main christian # My first partition, /dev/sda1, has Linux installed and is the partition I want to have GRUB on - what I need is its identifier, sda1. Replace every following instance of that identifier with the one of your partition's identifier. Become root by typing sudo -i Afterwards mount your partition and install grub (replace sda1): mount /dev/sda1 /mnt grub-install --root-directory=/mnt/ /dev/sda If there is no grub.cfg in /boot/grub, create one using mount --bind /proc /mnt/proc mount --bind /dev /mnt/dev mount --bind /sys /mnt/sys chroot /mnt update-grub umount /mnt/sys umount /mnt/dev umount /mnt/proc Afterwards you can restart your system, remove the Live CD and boot into GRUB.

Miguel Thank you for the guide! I am very grateful for it! There are some changes in Ubuntu 12 that require a slightly different command (I used Xubuntu 12.04 Live CD). The command “grub-install –root-directory=/mnt/ /dev/sda” didn’t work for me: first, that command isn’t understood by the terminal; second, it creates a folder called grub in / of my linux partition (the grub folder should be in /boot/). I used “grub-install –boot-directory=/mnt/boot/ /dev/sda” to put the grub folder where it belonged. Other than that, the guide was wonderful.

Hopefully this comment saves someone in the future a few minutes of time. Hadi Tjandrasa I have just upgraded my XP Pro to Windows 8 Pro with Scientific Linux on the same SATA drive. Windows wiped out the grub (dual boot menu). Here is what I did to restore the grub: Boot from a Live CD.% “df” to see where Linux is installed (/boot mounted) – mine was on sda7.% “sudo grub” to run grub grub>find /grub/stage1 — You will get an printout/output Output: (hd0,6) — This is my 1st SATA drive at sda7 partition grub>root (hd0,6) Output: Filesystem type is ext2fs, partition type 0x83 grub>setup (hd0) You should get “checking ’ printouts.

Succeeded Done. Grub>quit Reboot •.