Re: Dual boot Laptop won't boot after partition resize - Grub error
You didn't happen to change the start of a partition did you? Most partitioning tools have a graphical description of your drive. If you move the front of the partition you've changed the starting sector. This sector is what grub uses to know where to boot from. You can change the tail of your partitions, but the first sector of a partition is a reference point and if changed, when grub look for that sector and finds something unexpected, it'll return an error. So I would say to boot up an Ubuntu live CD, or USB which is significantly faster, and reinstall grub from the terminal. You can find loads of tutorials of how to recover a grub installation. Just try to make sure you use a recent version of Ubuntu as an older version of grub might not support your kernel. I hope that helps.
Ubuntu - HP Pavilion Elite 9510f
2.33ghz Core 2 Quad, nVidia geForce 9500 GS, 8gb RAM
Ubuntu - MacBookPro 7,1