划分分区，挂载分区

扩展分区，主分区，逻辑分区

gpt

 

划分分区

[[email protected] ~]# fdisk -l

[[email protected] ~]# fdisk /dev/vdb

Command (m for help): m             ###查看帮助

Command action

   a   toggle a bootable flag

   b   edit bsd disklabel

   c   toggle the dos compatibility flag

   d   delete a partition                 #####删除分区

   g   create a new empty GPT partition table

   G   create an IRIX (SGI) partition table

   l   list known partition types

   m   print this menu

   n   add a new partition               #####新建分区

   o   create a new empty DOS partition table

   p   print the partition table             #####显示分区表信息

   q   quit without saving changes        ######退出

   s   create a new empty Sun disklabel

   t   change a partition's system id           #####修改分区id

   u   change display/entry units

   v   verify the partition table

   w   write table to disk and exit           #####将当前操作写入硬盘分区表

   x   extra functionality (experts only)

Command (m for help): n                   #####新建分区

Partition type:                             ####创建分区类型

   p   primary (0 primary, 0 extended, 4 free)   #####主分区

   e   extended                            ######扩展分区

Select (default p): p                        ####选择分区类型为主分区    

Partition number (1-4, default 1): 1            #####确定分区id

First sector (2048-20971519, default 2048):       #####分区起始块位置，用默认

Using default value 2048

Last sector, +sectors or +size{K,M,G} (2048-20971519, default 20971519): +100M

                                     #######分区结束块位置，用 +size{K,M,G}设置

Partition 1 of type Linux and of size 100 MiB is set

 

 

第二三分区也采用 primary 步骤 略，下面是第四分区

Command (m for help): n                

Partition type:

   p   primary (3 primary, 0 extended, 1 free)

   e   extended

Select (default e): e                  ####选择分区类型为主分区  

 

Selected partition 4

First sector (616448-20971519, default 616448):

Using default value 616448

Last sector, +sectors or +size{K,M,G} (616448-20971519, default 20971519):

Using default value 20971519

Partition 4 of type Extended and of size 9.7 GiB is set

 由于分区4为逻辑分区，实际后面建立的分区都在分区4里面，所以将剩余空间都给4

新建分区5

 

 

Command (m for help): p                         #####显示分区表信息

 

 

Command (m for help): wq                   #####保存并退出

[[email protected] ~]# cat /proc/partitions   #####查看设备是否被系统识别

major minor  #blocks  name

 

 

挂载分区之前先格式化分区

[[email protected] ~]# mkfs.xfs /dev/vdb1        ###依次格式化

                                              /dev/vdb1 ，2，3，5（不能格式化4，

                                           因为四是容器，格式化后逻辑分区就没了）

[[email protected] ~]# blkid

/dev/vda1: UUID="9bf6b9f7-92ad-441b-848e-0257cbb883d1" TYPE="xfs"

/dev/vdb5: UUID="329d5e83-34a1-4f6d-aba9-961a12878106" TYPE="xfs"

/dev/vdb2: UUID="98d75a71-1710-4295-ad89-9a48401d6c07" TYPE="xfs"

/dev/vdb3: UUID="242f919f-5cc4-4ad0-85cf-2b4b893c1cc4" TYPE="xfs"

/dev/vdb1: UUID="ed8df2c1-1ba5-470b-b1e8-df44be724e35" TYPE="xfs"

分区格式化完成

[[email protected] ~]# mount /dev/vdb1 /mnt/              挂载

[[email protected] ~]# df

 

 

 

 

使用parted工具操作磁盘

[[email protected] ~]# parted /dev/vdb

用tab可显示可选的格式

 

更改后查看可发现、/dev/vdb格式为gpt

再次建立分区，此时可建立128个

 

 

格式化/dev/vdb1    需加-f才可成功格式化

挂载/dev/vdb1   到  /mnt/

将挂载的磁盘分区卸载

umount  /mnt/

 

 

以上挂载都是临时的

永久挂载

vim /etc/fstab

 

/dev/vdb1     /mnt xfs defaults 0 0

 

/dev/vdb1     /mnt        xfs       defaults                0      0

设备        挂载点   文件系统类型  挂载参数          不备份   不检测

 man 5 fstab  可查看

df查看

mount -a

df查看 /dev/vdb1 已挂载