patch时报的错误，哪位老大帮看看

zlcqupt

czl@sdlyczl:~/Desktop$ ls
?  ?~  aa  lumaqq  pax-linux-2.6.20.6-test11.patch
czl@sdlyczl:~/Desktop$ patch -p1 < pax-linux-2.6.20.6-test11.patch
can't find file to patch at input line 4
Perhaps you used the wrong -p or --strip option?
The text leading up to this was:
--------------------------
|diff -NurpX linux-2.6.20.6-pax/Documentation/dontdiff linux-2.6.20.6/Documentation/dontdiff linux-2.6.20.6-pax/Documentation/dontdiff
|--- linux-2.6.20.6/Documentation/dontdiff      2007-02-04 19:44:54.000000000 +0100
|+++ linux-2.6.20.6-pax/Documentation/dontdiff  2007-02-10 01:32:42.000000000 +0100
--------------------------
File to patch:

这里是报的什么错误？怎么办该
我是照着下面这个文章做的
http://www.linuxsir.cn/bbs/showthread.php?t=291934

zlcqupt

我是头一次装pax，难道patch是给已经装过的pax打补丁？

zlcqupt

root@sdlyczl:/home/czl/paxtest-0.9.7-pre5# man gcc
No manual entry for gcc
root@sdlyczl:/home/czl/paxtest-0.9.7-pre5# man g++
No manual entry for g++

难道我没有装gcc?我用的是ubuntu5.10