In my case the problem was that my "pv0" device was not in "/boot/grub/device.map". Once I added (hd3) /dev/sdd the error disappeared, but this error now appears: grub-probe: error: unknown filesystem.
In my case the problem was that my "pv0" device was not in "/boot/ grub/device. map".
Once I added
(hd3) /dev/sdd
the error disappeared, but this error now appears:
grub-probe: error: unknown filesystem.