zoukankan      html  css  js  c++  java
  • 【CentOS】CentOS7 添加新硬盘

    参考文章:  https://www.it610.com/article/520586.htm(亲测可用,因没有及时存档,故用该文章调整作为记录)

    1、查看硬盘

    # fdisk -l
    Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes
    255 heads, 63 sectors/track, 243201 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 4096 bytes
    I/O size (minimum/optimal): 4096 bytes / 4096 bytes
    Disk identifier: 0x97d16691
    
       Device Boot      Start         End      Blocks   Id  System
    

    2、硬盘新建分区

    使用fdisk命令对新增的sdb硬盘进行操作

    # fdisk /dev/sdb
    
    The device presents a logical sector size that is smaller than
    the physical sector size. Aligning to a physical sector (or optimal
    I/O) size boundary is recommended, or performance may be impacted.
    
    WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
             switch off the mode (command 'c') and change display units to
             sectors (command 'u').
    
    Command (m for help): p #查看此颗硬盘分区状况
    
    Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes
    255 heads, 63 sectors/track, 243201 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 4096 bytes
    I/O size (minimum/optimal): 4096 bytes / 4096 bytes
    Disk identifier: 0x97d16691
    
       Device Boot      Start         End      Blocks   Id  System
    
    Command (m for help): n #新建分区
    Command action
       e   extended
       p   primary partition (1-4)
    p #新建原始分区
    Partition number (1-4): 1 #分区编号
    First cylinder (1-243201, default 1): #从第一个扇区开始(使用默认)
    Last cylinder, +cylinders or +size{K,M,G} (1-243201, default 243201): #直接回车使用所有空间
    Using default value 243201
    
    Command (m for help): p #再次查看分区情况
    Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes
    255 heads, 63 sectors/track, 243201 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 4096 bytes
    I/O size (minimum/optimal): 4096 bytes / 4096 bytes
    Disk identifier: 0x97d16691
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sdb1               1      243201  1953512001   83  Linux
    Partition 1 does not start on physical sector boundary.
    
    Command (m for help): w #保存分区
    The partition table has been altered!
    
    Calling ioctl() to re-read partition table.
    Syncing disks.
    

      

    3、再次查看

    # fdisk -l 
    Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes
    255 heads, 63 sectors/track, 243201 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 4096 bytes
    I/O size (minimum/optimal): 4096 bytes / 4096 bytes
    Disk identifier: 0x97d16691
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sdb1               1      243201  1953512001   83  Linux
    Partition 1 does not start on physical sector boundary.
    

    (此时可以看见新建的sdb1分区,还需要格式化才能使用)

    4、格式化分区

    # mkfs.ext3 /dev/sdb1
    mke2fs 1.41.12 (17-May-2010)
    /dev/sdb1 alignment is offset by 512 bytes.
    This may result in very poor performance, (re)-partitioning suggested.
    Filesystem label=
    OS type: Linux
    Block size=4096 (log=2)
    Fragment size=4096 (log=2)
    Stride=1 blocks, Stripe width=0 blocks
    122101760 inodes, 488378000 blocks
    24418900 blocks (5.00%) reserved for the super user
    First data block=0
    Maximum filesystem blocks=0
    14905 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, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
            102400000, 214990848
    
    Writing inode tables: done
    Creating journal (32768 blocks): done
    Writing superblocks and filesystem accounting information: done
    
    This filesystem will be automatically checked every 20 mounts or
    180 days, whichever comes first.  Use tune2fs -c or -i to override.
    

      

    5、挂载

    # mkdir /eda_bak #建立新挂载点
    # mount /dev/sdb1 /eda_bak #挂载使用此硬盘
    # mount  #查看系统挂载情况
    /dev/sda3 on / type ext3 (rw)
    proc on /proc type proc (rw)
    sysfs on /sys type sysfs (rw)
    devpts on /dev/pts type devpts (rw,gid=5,mode=620)
    tmpfs on /dev/shm type tmpfs (rw,rootcontext="system_u:object_r:tmpfs_t:s0")
    /dev/sda1 on /boot type ext3 (rw)
    none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
    sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
    gvfs-fuse-daemon on /root/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev)
    /dev/sdb1 on /eda_bak type ext3 (rw)
    
    # df -h #查看使用空间
    Filesystem            Size  Used Avail Use% Mounted on
    /dev/sda3             457G  3.0G  431G   1% /
    tmpfs                 995M  260K  994M   1% /dev/shm
    /dev/sda1             194M   26M  158M  15% /boot
    /dev/sdb1             1.8T  196M  1.7T   1% /eda_bak
    

      

    6、开机自动挂载

    # vi /etc/fstab
    增加
    /dev/sdb1               /eda_bak                ext3    defaults        1 2
    

      

    得意时做事,失意时读书
  • 相关阅读:
    flex布局以及相关属性
    css 选择器
    两侧定宽,中栏自适应布局
    两列定宽,一列自适应布局
    左列定宽,右列自适应布局
    Flex接收51单片机发送过来的16进制数据转换为String
    Flex与51单片机socket通信 策略问题
    sql For XML Path
    sql多对多探讨
    JavaScript
  • 原文地址:https://www.cnblogs.com/lanse1993/p/12815514.html
Copyright © 2011-2022 走看看