I have CentOS 7 at VM and I want to merge /dev/sda3 with /dev/sda4 (recently created PV). Output of fdisk -l listed below:
Disk /dev/sda: 24.7 GB, 24696061952 bytes, 48234496 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0009c749
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 411647 204800 83 Linux
/dev/sda2 411648 1460223 524288 82 Linux swap / Solaris
/dev/sda3 1460224 41058303 19799040 83 Linux
/dev/sda4 * 41058304 48234495 3588096 8e Linux LVM
But when Im trying to check VG it leads to nothing:
[root@server1 ~]# vgs
[root@server1 ~]# vgdisplay
Output of df -h:
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 19G 17G 640M 97% /
devtmpfs 2.8G 0 2.8G 0% /dev
tmpfs 2.8G 0 2.8G 0% /dev/shm
tmpfs 2.8G 8.8M 2.8G 1% /run
tmpfs 2.8G 0 2.8G 0% /sys/fs/cgroup
/dev/sda1 190M 135M 42M 77% /boot
tmpfs 566M 0 566M 0% /run/user/600
tmpfs 566M 0 566M 0% /run/user/0
What I have to do?