http://www.jackxiang.com/index.php zh-cn http://www.jackxiang.com/post// jack <xdy108@126.com> Wed, 19 Nov 2014 09:56:09 +0000 http://www.jackxiang.com/post//
1、首先在要预留空间的分区上使用dd命令生成一个指定大小的文件：

      创建一个10M的文件，名字是foobar：
       # dd if=/dev/zero of=/home/foobar bs=1K count=10000
      In Unix-like operating systems， /dev/zero is a special file that provides as many null characters （ASCII NULL， 0x00； not ASCII character "digit zero"， "0"， 0x30） as are read from it. One of the typical uses is to provide a character stream for overwriting information. Another might be to generate a clean file of a certain size. Using mmap to map /dev/zero to RAM is the BSD way of implementing shared memory.

2、将这个文件格式化：

      # mke2fs -vFm0 /home/foobar 100000000 //（1K * 10000）
3、将这个文件mount，之后就可以向这个文件中写内容了，就好比向一个目录中写内容一样：

      # mount -o loop home/foobar /mnt/mountpoint
摘自：http://blog.csdn.net/penn902/article/details/5746606
更多：http://blog.chinaunix.net/uid-8504518-id-2030389.html ]]> http://www.jackxiang.com/post//#blogcomment <user@domain.com> Thu, 01 Jan 1970 00:00:00 +0000 http://www.jackxiang.com/post//#blogcomment