I have a notebook pre-installed with Windows7 and I installed Ubuntu 12.10 on it following the standard installation steps in the installation image. The only problem is that on reboot the machine continues to boot Windows ignoring the presence of Ubuntu (Grub never comes up). My partition scheme is this sda1: NTFS 612MB sda2: NTFS 50GB (after resizing during Ubuntu installation. This is the main windows partition) sda4: extended sda5: ext4 /boot sda6: btrfs / I have tried Boot-repair and it didn't help. Tried rEFInd boot manager but it doesn't support NTFS partitions. I don't know what else to try. My next attempt is to try to install GRUB by hand to the MBR. Any other Ideas?