安装 lvm

sudo apt-get -y install lvm2

sudo fdisk -l

sudo pvscan

sudo pvcreate /dev/xvdb

sudo pvdisplay

sudo vgcreate -s 16m ingvg /dev/xvdb

sudo vgscan

sudo pvscan

sudo vgdisplay

sudo lvcreate -l 3199 -n inglv ingvg

sudo mkfs -t ext4 /dev/ingvg/inglv

sudo sudo -i blkid

sudo vi /etc/fstab

# /dev/mapper/ingvg-inglv /data ext4 errors=remount-ro 0 1
UUID=050c8adf-7d5a-415b-a5f5-85ba7f635b17  /data   ext4  defaults,nofail   1   2