Нашел такой коммент 🙁
The problem was with Hitachi’s HDLM.
HDLM creates it’s own special devices. The device files were already in /dev and in the ODM, but not in the kernel. At some point, HDLM recreated the kernel device entries with new major numbers, but did not correct the ODM and the device files. At that point, the major numbers got out of sync and things went downhill from there.
The fix is to remove and re-install HDLM.
Неужели все так плачевно?