Wrong major or minor number

Hi folks. i tried to partition hda from my brain remembering some thing around 4 partitions. wrote part. table from results that gpart told me. tried to mount. error occurs "wrong major or minor number" what does that tell me? cannot even mount hda1 or hda2 (1 used to be dos, 2 was linux main partition) Must be the sign the partition table is bad. Maybe a geometry problem, ... how can i get access to hda1 (former dos) and hda2 (type 82) partitions to evacuate my data? Olli