User@Laptop:~$ sudo pvs /dev/sdc: open up unsuccessful: No medium identified /dev/sdd: open up unsuccessful: No medium discovered /dev/sde: open up failed: No medium observed /dev/sdf: open up failed: No medium discovered /dev/sdc: open failed: No medium identified /dev/sdd: open up unsuccessful: No medium uncovered /dev/sde: open up failed: No medium https://archervdkpw.ziblogs.com/26736289/service-can-be-fun-for-anyone