• 磁盘格式化


    [root@r~]# df -h
    Filesystem      Size  Used Avail Use% Mounted on
    /dev/vda1        20G  5.5G   14G  30% /
    tmpfs           1.9G     0  1.9G   0% /dev/shm
    [root@r ~]# fdisk -l
    
    Disk /dev/vda: 21.5 GB, 21474836480 bytes
    255 heads, 63 sectors/track, 2610 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00078f9c
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/vda1   *           1        2611    20970496   83  Linux
    
    Disk /dev/vdb: 214.7 GB, 214748364800 bytes
    16 heads, 63 sectors/track, 416101 cylinders
    Units = cylinders of 1008 * 512 = 516096 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00000000
    
    [root@r ~]# fdisk /dev/vdb
    Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
    Building a new DOS disklabel with disk identifier 0x1aed48fa.
    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 to
             switch off the mode (command 'c') and change display units to
             sectors (command 'u').
    
    Command (m for help): 
    
    Command (m for help): p  #打印分区列表
    
    Disk /dev/vdb: 214.7 GB, 214748364800 bytes
    16 heads, 63 sectors/track, 416101 cylinders
    Units = cylinders of 1008 * 512 = 516096 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x1aed48fa
    
       Device Boot      Start         End      Blocks   Id  System
    Command (m for help): m  #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
       l   list known partition types
       m   print this menu
       n   add a new partition
       o   create a new empty DOS partition table
       p   print the partition table
       q   quit without saving changes
       s   create a new empty Sun disklabel
       t   change a partition's system id
       u   change display/entry units
       v   verify the partition table
       w   write table to disk and exit
       x   extra functionality (experts only)
    
    Command (m for help): n
    Command action
       e   extended
       p   primary partition (1-4)
    1
    Invalid partition number for type `1'
    Command action
       e   extended
       p   primary partition (1-4)
    p
    Partition number (1-4): 1
    First cylinder (1-416101, default 1): 
    Using default value 1
    Last cylinder, +cylinders or +size{K,M,G} (1-416101, default 416101): 
    Using default value 416101
    
    Command (m for help): w
    The partition table has been altered!
    
    Calling ioctl() to re-read partition table.
    Syncing disks.
    
    [root@r ~]# df -h
    Filesystem      Size  Used Avail Use% Mounted on
    /dev/vda1        20G  5.5G   14G  30% /
    tmpfs           1.9G     0  1.9G   0% /dev/shm
    [root@r ~]# fdisk -l
    
    Disk /dev/vda: 21.5 GB, 21474836480 bytes
    255 heads, 63 sectors/track, 2610 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00078f9c
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/vda1   *           1        2611    20970496   83  Linux
    
    Disk /dev/vdb: 214.7 GB, 214748364800 bytes
    16 heads, 63 sectors/track, 416101 cylinders
    Units = cylinders of 1008 * 512 = 516096 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x1aed48fa
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/vdb1               1      416101   209714872+  83  Linux
    

      在使用硬盘之前必须对其分区进行格式化,并挂载:

    [root@r ~]# mkfs.ext3 /dev/vdb1
    mke2fs 1.41.12 (17-May-2010)
    Filesystem label=
    OS type: Linux
    Block size=4096 (log=2)
    Fragment size=4096 (log=2)
    Stride=0 blocks, Stripe width=0 blocks
    13107200 inodes, 52428718 blocks
    2621435 blocks (5.00%) reserved for the super user
    First data block=0
    Maximum filesystem blocks=4294967296
    1600 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
    
    Writing inode tables: done                            
    Creating journal (32768 blocks): done
    Writing superblocks and filesystem accounting information: done
    
    This filesystem will be automatically checked every 35 mounts or
    180 days, whichever comes first.  Use tune2fs -c or -i to override.
    
    [root@r ~]# df -h
    Filesystem      Size  Used Avail Use% Mounted on
    /dev/vda1        20G  5.5G   14G  30% /
    tmpfs           1.9G     0  1.9G   0% /dev/shm
    [root@r ~]# mkdir /hdd1
    [root@r ~]# mount /dev/vdb1 /hdd1
    [root@r ~]# df -h
    Filesystem      Size  Used Avail Use% Mounted on
    /dev/vda1        20G  5.5G   14G  30% /
    tmpfs           1.9G     0  1.9G   0% /dev/shm
    /dev/vdb1       197G  188M  187G   1% /hdd1
    
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  • 原文地址:https://www.cnblogs.com/bass6/p/5439947.html
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