linux磁盘硬盘挂载分区增加

查看磁盘

fdisk -l

初始化磁盘

mkfs.ext4 /dev/sdb

挂载磁盘到分区
mount /dev/sdb /home

开机自动挂载
echo '/dev/sdb /home ext4 defaults 0 0' >> /etc/fstab
cat /etc/fstab

df -h
fdisk -l
fdisk /dev/sda
n
p
3

print
t
3
8e
print
w
partprobe
fdisk -l
pvcreate /dev/sda3
pvdisplay
vgextend centos /dev/sda3
pvdisplay
lvresize -L +70G /dev/mapper/centos-root
xfs_growfs /dev/mapper/centos-root

创建物理卷
pvcreate /dev/sdb
查看卷组
vgdisplay
扩展卷分组
vgextend centos /dev/sdb
查看逻辑卷
lvdisplay
扩展逻辑卷
pvdisplay查看得到的Free PE
lvextend -L +6G /dev/centos/home
xfs_growfs /dev/mapper/centos-root