(1).临时挂载:
[root@CentOS6 桌面]# fdisk /dev/sdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x4ef8fb05.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)WARNING: DOS-compatible mode is deprecated. It's strongly recommended toswitch off the mode (command 'c') and change display units tosectors (command 'u').Command (m for help): n //新建分区
Command actione extendedp primary partition (1-4)
p //创建主分区
Partition number (1-4): 1 //分区号
First cylinder (1-2610, default 1): //起始位置,一般默认即可
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-2610, default 2610): //给定的大小,不是默认一定要有加号'+'
Using default value 2610Command (m for help): w //保存退出
The partition table has been altered!Calling ioctl() to re-read partition table.
Syncing disks.
[root@CentOS6 桌面]# mkdir /newpar //创建挂载的文件夹
//ext4格式化,xfs格式化就是mkfs.xfs /dev/sdb1
[root@CentOS6 桌面]# mkfs.ext4 /dev/sdb1 //如果已经存在文件系统,需要使用-f选项对分区强制格式化
mke2fs 1.41.12 (17-May-2010)
文件系统标签=
操作系统:Linux
块大小=4096 (log=2)
分块大小=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
1310720 inodes, 5241198 blocks
262059 blocks (5.00%) reserved for the super user
第一个数据块=0
Maximum filesystem blocks=4294967296
160 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000正在写入inode表: 完成
Creating journal (32768 blocks): 完成
Writing superblocks and filesystem accounting information: 完成This filesystem will be automatically checked every 22 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
[root@CentOS6 桌面]# mount /dev/sdb1 /newpar //将分区挂载
[root@CentOS6 桌面]# df -h //查看挂载情况
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_centos6-lv_root50G 3.7G 43G 8% /
tmpfs 932M 228K 932M 1% /dev/shm
/dev/sda1 477M 40M 412M 9% /boot
/dev/mapper/vg_centos6-lv_home45G 52M 43G 1% /home
/dev/sdb1 20G 44M 19G 1% /newpar
注意:CentOS7默认文件系统是xfs,CentOS6默认文件系统是ext4
(2).永久挂载
永久挂载方法一:使用分区名挂载
使用命令'vim /etc/fstab'进入文件增加一行
/dev/sdb1 /newpar ext4 defaults 0 0
永久挂载方法二:使用UUID挂载(建议使用UUID)
[root@xuexi ~]# blkid
/dev/sda1: UUID="0516ad0c-a018-41a2-a384-f607ed06db40" TYPE="xfs"
/dev/sda2: UUID="81986899-73d9-4029-b5bb-a30e652d766c" TYPE="swap"
/dev/sda3: UUID="526be8cd-59d8-4ffa-bb0b-9ac8ad2a02af" TYPE="xfs"
/dev/sdb1: UUID="da309857-1362-4ff8-8219-ddc1d177755f" TYPE="xfs"
/dev/sr0: UUID="2018-05-03-20-55-23-00" LABEL="CentOS 7 x86_64" TYPE="iso9660" PTTYPE="dos"
[root@xuexi ~]# echo "UUID=da309857-1362-4ff8-8219-ddc1d177755f /sdb1 xfs defaults 0 0" >> /etc/fstab
在重启系统前可以先使用命令'mount -a'检测是否可以正常运行,如果没有报错可以重启系统。
另外ext4可以根据实际使用更换,具体如下:
光盘或光盘镜像iso9660
DOS fat16文件系统msdos
Windows 9x fat32文件系统vfat
Windows NT ntfs文件系统ntfs
Mount Windows文件网络共享smbfs
UNIX(LINUX)文件网络共享nfs
说明:
/dev/sdb1 | /sdb1 | xfs | defaults | 0 | 0 |
要挂载的分区设备 | 挂载点 | 文件系统类型 | 挂载选项 | 是否备份 | 是否检测 |
defaults对应的挂载选项请看Linux命令之mount中(1)常用选项中的-o option选项。可以使用英文逗号选择多个选项(option,option,option,...)