LVM create, extend and delete

Install pakage LVM dist based in debian

apt install lvm2

Create partition LVM type  8e

cfdisk /dev/sdb

or

fdisk



Create phisical volume

pvcreate /dev/sdb1

Create Group Volume

vgcreate vg /dev/sdb1



Extends group volume

vgextend vg /dev/sdb1

Create logical volumen

lvcreate testing -L 1.99G -n storage

Make system file ext4

mkfs.ext4 /dev/mapper/testing-storage

Add automount fstab

vi /etc/fstab 

add next line

/dev/mapper/testing-storage /storage ext3 defaults 0 2

Extend the LV and filesystem: the quick and automatic way

note check if filesytem is ext

lvresize --resizefs --size +931GB /dev/vg/lv_home

Extend the logical volume

lvextend -L+931GB /dev/vg/lv_home




Extend the ext4 file system

resize2fs /dev/vg/lv_home

if next error

resize2fs: Bad magic number in super-block while trying to open

Check your file system

mount

If your filesytem is xfs run

xfs_growfs /dev/mapper/centos-root

Check with
df -lh