问题：

  在通过apt-get安装内存测试工具lmbench的时候，出现如下错误：

apt-get install lmbench

Reading package lists... Done

Building dependency tree       

Reading state information... Done

You might want to run ‘apt-get -f install‘ to correct these:

The following packages have unmet dependencies:

 mpt-status : Depends: daemon but it is not going to be 

installed

              Depends: mailx

E: Unmet dependencies. Try ‘apt-get -f install‘ with no packages 

(or specify a solution).

诊断：

  通过资料查找，发现可能是安装的其他软件包不兼容导致了，同时根据提示需要执行“apt-get  -f install ”来卸载之前的冲突包。

 还有个命令是：aptitude -f install

解决：

  执行如下命令：

aptitude -f install

No packages will be installed, upgraded, or removed.

0 packages upgraded, 0 newly installed, 0 to remove and 1 not 

upgraded.

Need to get 0 B of archives. After unpacking 0 B will be used.

The following packages have unmet dependencies:

 mpt-status : Depends: daemon but it is not going to be 

installed.

              Depends: mailx which is a virtual package.

The following actions will resolve these dependencies:

     Remove the following packages:

1)     mpt-status                  

Accept this solution? [Y/n/q/?] y

Invalid response; please enter one of the following commands:

  y: accept the proposed changes

  n: reject the proposed changes and search for another solution

  q: give up and quit the program

  .: move to the next solution

  ,: move to the previous solution

  o: toggle between the contents of the solution and an 

explanation of the solution

  e: examine the solution in the visual user interface

  x: abort automatic dependency resolution; resolve dependencies 

by hand instead

  r (ID|pkg ver) ...: reject the given package versions; don‘t 

display any solutions in which they occur.  Enter UNINST instead 

of a version to reject

                 removing the package.  ID is the integer 

printed to the left of the action.

  a (ID|pkg ver) ...: accept the given package versions; display 

only solutions in which they occur.  Enter UNINST instead of a 

version to accept

                 removing the package.  ID is the integer 

printed to the left of the action.

  <ID>: display information about the action labeled ID from the 

solution.  The label is the integer printed to the left of the 

action.

  <ACTION> pkg... : adjust the state of the listed packages, 

where ACTION is one of:

  ‘+‘ to install packages

  ‘+M‘ to install packages and immediately flag them as 

automatically installed

  ‘-‘ to remove packages

  ‘_‘ to purge packages

  ‘=‘ to place packages on hold

  ‘:‘ to keep packages in their current state without placing 

them on hold

  ‘&M‘ to mark packages as automatically installed

  ‘&m‘ to mark packages as manually installed

Accept this solution? [Y/n/q/?] y

The following packages will be REMOVED:

  mpt-status{a} 

0 packages upgraded, 0 newly installed, 1 to remove and 0 not 

upgraded.

Need to get 0 B of archives. After unpacking 89.1 kB will be 

freed.

Do you want to continue? [Y/n/?] y

dpkg: warning: parsing file ‘/var/lib/dpkg/status‘ near line 

13600 package ‘storcli‘:

 missing maintainer

(Reading database ... 97017 files and directories currently 

installed.)

Removing mpt-status (1.2.0-4.2.hwraid1) ...

Processing triggers for man-db (2.6.7.1-1ubuntu1) ...

Current status: 0 broken [-1], 0 updates [-1].

再来执行apt-get install lmbench即可。

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Ubuntu下apt-get安装文件提示：apt-get -f install