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