Yesterday I installed Ubuntu 12.10 (64-bit) alongside win7 on my laptop. Both sitting on a single 120gb ssd disk. The install went seemingly flawless.
Upon finishing the installation I did a (forced) reboot. Np, Ubuntu started fine. I expected several missing driver issues and whatnot, but everything was working (afaik) out of the box. Even my bluetooth mouse was a walk in the park to get up and running. I then rebooted into win7 and after doing the disk checks it always does following the installation of a second os next to it, win7 booted with no issues as well.
The problems started when I then wanted to reboot back into Ubuntu. The grub bootloader came up as usual, but having chosen Ubuntu the screen flickered a few times then stopped on a grey screen. I turned off the laptop and repeated this a couple of times with the exact same result. On my 3rd or 4th attempt I was somehow able to boot and immediately installed and ran boot-repair.
Inside boot-repair I chose the "automatically-fix-it" button which made it do stuff (said so on screen), but please don't ask me what... Upon finishing it came up with a pop-up where it asked me to write down on a piece of paper this:
It also warned me that my boot files are located too far from the start of the disk. It should be below 200mb from the start of the disk. The Ubuntu partition is the last 40gb of a 120gb ssd disk afaik. I have no idea where the installation placed my boot files. I somehow imagined it would put them in a sensible place... I made no custom adjustments during the install. I just followed all the default options offered by the installer.
Boot-repair suggest I use gparted to solve this issue. Having searched and read up on gparted I'm not particularly comfortable using the program. Is there someone able to point me to an idiot's guide to using gparted (or another suited program) to move my boot files to where they belong?
Also... is this indeed the (only) problem causing my laptop's boot problems? I have rebooted my laptop over and over and it still only boots on approx. every 4th attempt. Boot-repair made no difference (noticeable to me).
I'm very unsure what kind of info I should present to help you help me. Please just state so if you want me to provide more info on my hardware/set-up.
I know the installation of both os's was made in bios, not uefi-mode. For whatever that is worth.