[root@localhost ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 60G 0 disk ├─sda1 8:1 0 4G 0 part [SWAP] └─sda2 8:2 0 56G 0 part / sdb 8:16 0 20G 0 disk ├─sdb1 8:17 0 4G 0 part ├─sdb2 8:18 0 4G 0 part ├─sdb3 8:19 0 6G 0 part └─sdb4 8:20 0 6G 0 part sr0 11:0 1 1024M 0 rom [root@localhost ~]# partprobe /dev/sdb [root@localhost ~]# pvcreate /dev/sdb[1-4] Physical volume "/dev/sdb1" succ..