构建ubuntu20pwn题目镜像出现cp:cannotoverwritenondirectory‘/home/ctf/lib‘withdirectory‘/usr/lib‘

cp: cannot overwrite non-directory " /home/ctf/lib’ with directory ’
/usr/lib ’ cp: cannot overwrite non-directory ’ /home/ctf/lib32’ with
directory ’ /usr/lib32 ’ cp: cannot overwrite non-directory ’
/home/ctf/lib64’ with directory ’ /usr/lib64 cp: cannot ove rwrite
non-directory ’ /home/ctf/libx32’ with directory ‘/usr/libx3’

解决方法&＃xff1a;
https://github.com/fjh1997/pwn-server
如果是ubuntu 19以上&＃xff08;包括19&＃xff09;的镜像&＃xff0c;请将base里的Dockerfile

RUN cp -R /lib* /home/ctf && \cp -R /usr/lib* /home/ctf


改为

RUN cp -R /usr/lib* /home/ctf


原因是ubuntu19以上采用了软连接模式。/lib*只是一个软链接