User@Pc:~$ sudo pvs /dev/sdc: open unsuccessful: No medium identified /dev/sdd: open unsuccessful: No medium identified /dev/sde: open up failed: No medium uncovered /dev/sdf: open up unsuccessful: No medium found /dev/sdc: open failed: No medium discovered /dev/sdd: open failed: No medium discovered /dev/sde: open failed: No medium identified /dev/sdf: open failed: https://ricardotahns.onesmablog.com/the-single-best-strategy-to-use-for-wash-66831206