./usr/share/man/中的man3坏了，请达人指点！万分感激！

dpf

安装软件时发现 无法 stat “./usr/share/man/man3”
于是我在终端打开看看，当运行下面时：
dpf@C1:/usr/share/man$ ls
cs fr.ISO8859-1 it man1 man6 pl.UTF-8 sv
de fr.UTF-8 it.ISO8859-1 man2 man7 pt_BR tr
es gl it.UTF-8 man3 man8 ru zh_CN
fi hu ja man4 pl ru.KOI8-R zh_TW
fr id ko man5 pl.ISO8859-2 ru.UTF-8
发现硬盘红灯亮，响声吱吱拉拉了一会才显示内容。

我又运行
dpf@C1:/usr/share/man$ ls -l
drwxr-xr-x 6 root root 144 2008-03-06 02:00 cs
drwxr-xr-x 5 root root 120 2007-05-18 17:59 de
drwxr-xr-x 5 root root 120 2007-10-04 19:17 es
drwxr-xr-x 4 root root 96 2008-03-06 02:00 fi
drwxr-xr-x 7 root root 168 2008-03-06 02:10 fr
drwxr-xr-x 3 root root 72 2008-03-06 02:00 fr.ISO8859-1
drwxr-xr-x 3 root root 72 2008-03-06 02:00 fr.UTF-8
drwxr-xr-x 3 root root 72 2008-03-06 02:00 gl
drwxr-xr-x 5 root root 120 2007-05-18 17:59 hu
drwxr-xr-x 4 root root 96 2008-03-06 01:59 id
drwxr-xr-x 5 root root 120 2007-05-18 17:59 it
drwxr-xr-x 3 root root 72 2008-03-06 02:00 it.ISO8859-1
drwxr-xr-x 3 root root 72 2008-03-06 02:00 it.UTF-8
drwxr-xr-x 5 root root 120 2007-10-04 19:17 ja
drwxr-xr-x 5 root root 120 2008-03-06 01:59 ko
drwxr-xr-x 2 root root 37056 2008-11-14 15:56 man1
drwxr-xr-x 2 root root 80 2008-03-06 02:09 man2
?--------- ? ? ? ? ? man3
drwxr-xr-x 2 root root 2296 2008-03-05 18:21 man4
drwxr-xr-x 2 root root 7632 2008-03-07 17:01 man5
drwxr-xr-x 2 root root 1936 2008-03-05 18:23 man6
drwxr-xr-x 2 root root 3912 2008-03-05 18:22 man7
drwxr-xr-x 2 root root 15872 2008-03-07 17:01 man8
发现自己的man3是坏掉了。
于是想删除它
dpf@C1:/usr/share/man$ sudo rm man3
rm: 无法删除 “man3”: Permission denied
dpf@C1:/usr/share/man$ sudo chmod 777 man3
chmod: 无法访问 “man3”: Permission denied
可是出现了上面的结果，请高手们指点下怎么删除掉它，或者有没有什么更好的解决方法！
只要能删掉我就能自己作后面的事了！
我万分感谢！
求求大伙了！
希望版主能帮帮俺！

dsj

不是已回答过了吗