Problem: use OpenSuSE 11.1 as parallel python client with numpy, scipy and matplotlib, which starts automatically at boot time without the need to have anyone logged in.
After having installed OpenSuSE 11.1 on my office machine quite a long time ago and found, that Windows 7 was not bootable any more I simply repaired the boot by using the Windows 7 Installation DVD and forgot about Linux on that machine. A few days ago the necessity of having Linux as well showed up again and I wanted to integrate both systems into GRUB, which for whatever reason failed. (I guess it is due to the 64bit Version which in my case added an invisible boot partition of roughly 100 MB as first partition on the hard drive.) I finally ended up integrating GRUB into the Windows Boot Loader using mainly this entry (thanks and credits to the author!) which I will fine tune and enrich with additional information in the following: