:D ok, now I can format the hdd, but I had to use a "non-msdos MBR", - bsd, amiga :O
I started again, in gparted, with an ms-dos mbr...it worked :D... but.... fdisk -l Disk /dev/sdb: 120.0 GB, 120034123776 bytes 255 heads, 63 sectors/track, 14593 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x00000000 Disk /dev/sdb doesn't contain a valid partition table and I can only write to it, when I'm root...:S