How to use the RAM disk for dm-crypt

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Hi, all:
    I want to use the ram disk as my cryption target disk. This is my
command:
   # dd if=/dev/zero of=dmf count=4096 bs=4096
   # sudo dmsetup create dmf

  2.6.24-16-generic,
Library version:   1.02.20 (2007-06-15)
Driver version:    4.12.0

    but it will be blocked here. But I don't kown what wrong with it. Do you
some idea on it or do you some idea learning dm-crypt?

   Thanks all!

Best Regards!

Bai Shuwei

-- 
Love other people, as same as love yourself!
Don't think all the time, do it by your hands!

Personal URL: http://dslab.lzu.edu.cn:8080/members/baishw/
E-Mail: baishuwei@xxxxxxxxx or baishuwei@xxxxxxxxxxxxxxxx

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