After investing some more hours in partitioning a harddisk I have a working setup.
Using the fdisk with -H 224 -S 56 /dev/sdb build a wrong harddisk with problems under windows XP. testdisk shows errors.
Make sure to delete the partitiontable with
dd if=/dev/zero of=/dev/sdb count=1 bs=1k
and create a new one with parted (see other postings). Then make sure to have them at a divide by 8 boundary.
I have to format them under Windows without(!) the quick/fast mode.
I’m still demotivated about the disk…
