centos磁盘挂载
1. 查看所有分区表
[root@iZj6chx50rbasf1de8n2flZ /]# fdisk -lDisk /dev/vda: 64.4 GB, 64424509440 bytes, 125829120 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk label type: dosDisk identifier: 0x000b1b45 Device Boot Start End Blocks Id System/dev/vda1 * 2048 125827071 62912512 83 LinuxDisk /dev/vdb: 536.9 GB, 536870912000 bytes, 1048576000 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytes复制代码
2. 格式化分区
[root@iZj6chx50rbasf1de8n2flZ data]# mkfs.ext4 /dev/vdbmke2fs 1.42.9 (28-Dec-2013)Filesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)Stride=0 blocks, Stripe width=0 blocks32768000 inodes, 131072000 blocks6553600 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=22796042244000 block groups32768 blocks per group, 32768 fragments per group8192 inodes per groupSuperblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 102400000Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): doneWriting superblocks and filesystem accounting information: done 复制代码
3. 挂载分区
[root@iZj6chx50rbasf1de8n2flZ /]# df -h // 当前只有/dev/vad1/ 挂载在根目录下Filesystem Size Used Avail Use% Mounted on/dev/vda1 59G 2.9G 54G 6% /devtmpfs 3.9G 0 3.9G 0% /devtmpfs 3.9G 0 3.9G 0% /dev/shmtmpfs 3.9G 472K 3.9G 1% /runtmpfs 3.9G 0 3.9G 0% /sys/fs/cgrouptmpfs 783M 0 783M 0% /run/user/0[root@iZj6chx50rbasf1de8n2flZ /]# mkdir data // 创建需要被挂载的目录[root@iZj6chx50rbasf1de8n2flZ /]# mount /dev/vdb /data //挂载 /dev/vdb 至 /data 目录[root@iZj6chx50rbasf1de8n2flZ /]# df -h // 可以看到 /dev/vdb 已挂载至 /dataFilesystem Size Used Avail Use% Mounted on/dev/vda1 59G 2.9G 54G 6% /devtmpfs 3.9G 0 3.9G 0% /devtmpfs 3.9G 0 3.9G 0% /dev/shmtmpfs 3.9G 472K 3.9G 1% /runtmpfs 3.9G 0 3.9G 0% /sys/fs/cgrouptmpfs 783M 0 783M 0% /run/user/0/dev/vdb 493G 73M 467G 1% /data复制代码
4. 开机自动挂载
编辑 /etc/fstab 在末尾添加 /dev/vdb (磁盘分区) /data (挂载目录) ext4 (文件格式) defaults 1 2
[root@iZj6chx50rbasf1de8n2flZ /]# vi /etc/fstab # /etc/fstab# Created by anaconda on Fri Feb 15 09:22:39 2019## Accessible filesystems, by reference, are maintained under '/dev/disk'# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info#UUID=ed95c595-4813-480e-992b-85b1347842e8 / ext4 defaults 1 1/dev/vdb /data ext4 defaults 1 2复制代码