ah ehm... windows 7 and kubuntu on dell studio

need to understand why openSuse 11.2 doesn't install on dell studio 17

dell installation uses 3 primary partitions :(
dell software
recovery
windows 7 installation

resizing the windows 7 partition with th o.s. disk resize tool, kubuntu 10.04 can be easyly installed in an extended partition (1 or 2 Gb swap, 10Gb ext4 mounting /, 10Gb xfs mounting /opt and the rest as crypted xfs mounting /home)

grub on /dev/sda

everything works fine while selecting the kubuntu entry on startup, not the same for windows

it starts, it stops, it de-configures grub O_O and no system can be started anymore...
the error is something like

"unable to find module to load" or something similar

funny :)

i need to understand if this behavior is caused by dell software (like livebackup) or windows 7 startup/shutdown process or the installed McAfee antivirus (1 year with Dell, next i'll come back to avg free)... i'll open a ticket to dell about this issue...

anyway the fix is easy and well known

start with a live distro
mount the / partition
do the grub-install with the option --root-directory and the target the device (/dev/sda)
restart and grub is back