Disk /dev/md0 doesn't contain a valid partition table

Disk /dev/hda: 3249 MB, 3249340416 bytes
255 heads, 63 sectors/track, 395 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1          24      192748+  83  Linux
/dev/hda2              25         395     2980057+  fd  Linux raid autodetect

Disk /dev/hdd: 3249 MB, 3249340416 bytes
128 heads, 63 sectors/track, 787 cylinders
Units = cylinders of 8064 * 512 = 4128768 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hdd1               1          48      193504+  82  Linux swap / Solaris
/dev/hdd2              49         787     2979648   fd  Linux raid autodetect

Disk /dev/md0: 3051 MB, 3051094016 bytes
2 heads, 4 sectors/track, 744896 cylinders
Units = cylinders of 8 * 512 = 4096 bytes