阿里云ECS服务器挂载磁盘

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不要到处宣扬自己的内心，这世上不止你一个人有故事

使用阿里云ECS服务器， 购买的40G高效云盘已经不够用， 所以又购买了一块云盘， 但是仅仅通过控制台操作并不能将磁盘挂载到系统， 接下来记录我的挂载流程； 为了安全起见， 建议先去做一个磁盘快照

  • 检查磁盘现在的情况

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    df -h

    结果

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    Filesystem      Size  Used Avail Use% Mounted on
    /dev/vda1        40G   35G  3.2G  92% /
    devtmpfs        3.9G     0  3.9G   0% /dev
    tmpfs           3.9G     0  3.9G   0% /dev/shm
    tmpfs           3.9G  632K  3.9G   1% /run
    tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
    tmpfs           783M     0  783M   0% /run/user/0

  • 查看硬盘个数及分区 

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    fdisk -l

    结果

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    Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk label type: dos
    Disk identifier: 0x0008d73a

       Device Boot      Start         End      Blocks   Id  System
    /dev/vda1   *        2048    83884031    41940992   83  Linux

    Disk /dev/vdb: 21.5 GB, 21474836480 bytes, 41943040 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes

    我们可以看到那块20GB的磁盘：/dev/xdb

  • 对这块硬盘进行分区

  • 查看

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    fdisk -l

    结果

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    Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk label type: dos
    Disk identifier: 0x0008d73a

       Device Boot      Start         End      Blocks   Id  System
    /dev/vda1   *        2048    83884031    41940992   83  Linux

    Disk /dev/vdb: 21.5 GB, 21474836480 bytes, 41943040 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk label type: dos
    Disk identifier: 0x7a2b9a92

       Device Boot      Start         End      Blocks   Id  System
    /dev/vdb1            2048    41943039    20970496   83  Linux

  • 格式化新分区

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    mkfs.ext3 /dev/vdb1

  • 创建挂载目录
    建议挂载到mnt目录， 也可以自己创建新的目录

  • 挂载分区到目录

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    mount /dev/vdb1 /mnt

  • 查看

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    df -h

    结果

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    Filesystem      Size  Used Avail Use% Mounted on
    /dev/vda1        40G   35G  3.1G  92% /
    devtmpfs        3.9G     0  3.9G   0% /dev
    tmpfs           3.9G     0  3.9G   0% /dev/shm
    tmpfs           3.9G  636K  3.9G   1% /run
    tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
    tmpfs           783M     0  783M   0% /run/user/0
    /dev/vdb1        20G   45M   19G   1% /mnt
    ```  
    - 设置开机自动挂载 
    ```php
    cat /etc/fstab
    #
    # /etc/fstab
    # Created by anaconda on Sun Oct 15 15:19:00 2017
    #
    # 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=eb448abb-3012-4d8d-bcde-94434d586a31 /                       ext4    defaults        1 1

    修改

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    vi /etc/fstab

    结果

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    #
    # /etc/fstab
    # Created by anaconda on Sun Oct 15 15:19:00 2017
    #
    # 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=eb448abb-3012-4d8d-bcde-94434d586a31 /                       ext4    defaults        1 1
    /dev/vdb1                                 /mnt                    ext3    defaults        0 0

  • 重启

https://help.aliyun.com/document_detail/25426.html
https://blog.csdn.net/wyzhangchengjin123/article/details/50451065