virtualbox 为 mint增加虚拟硬盘

    首先在virtualBox设置里,设置->介质->添加->选add harddisk,在弹出的对话框里选择新建,点击下一步,选择动态扩展(固定的分小了,又要在分,麻烦),点击下一步,选择大小,点击下一步,完成。【也可以】

    接下来就要在Ubuntu里做相关设置。

    进入终端模式
    输入sudo fdisk /dev/sdb
    会提示
    The number of cylinders for this disk is set to 1365.
    Command (m for help):
    按m看help
    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)
    按n创建分区,按p是查看分区
    Command (mfor help): n
    Commandaction
    eextended
    p primarypartition (1-4)
   e是创建扩展分区
   p是创建主分区
    按p
    p
    Partitionnumber (1-4):1
    Firstcylinder (1-1044, default 1):1
    Lastcylinder or +size or +sizeM or +sizeK (1-1044, default1044):1044
    Command (mfor help): w
   按w保存退出

   格式化开始,我选择的是ext3格式(文件系统类型可在 cd  /sbin下查看)
   sudo mkfs -text3 /dev/sdb1
   然后我把这个硬盘挂在~/src下就可以了
    cd~/src   (cd  /usr/src)
   sudo mkdirsdb1
    sudo mount/dev/sdb1 ~/src/sdb1
    sudodf
   df命令是查看的意思
    文件系统 1K-块 已用可用 已用% 挂载点
   /dev/sda1             3842376  2822092   825096  78% /
    tmpfs                  190020        0   190020   0% /lib/init/rw
    varrun                 190020      120   189900   1% /var/run
    varlock                190020        0   190020   0% /var/lock
    udev                   190020      152   189868   1% /dev
    tmpfs                  190020       76   189944   1% /dev/shm
    lrm                      190020   

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