建立lvm卷并加入vg组

建立lvm卷

在硬盘上新划分sda3分区，格式为8e
pvcreate /dev/sda3

查看当前vg

将sda3添加到vg组centos
vgextend centos /dev/sda3

建立名称为centos-home的逻辑卷
lvcreate -l +100%FREE centos -n home
mkfs.xfs /dev/centos/home
挂载
mount /dev/centos/home /mntdir

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删除操做
lvremove centos-home /dev/centos/centos-home