没到现场学习的gromacs小白在安装grace和Amber时好像找不到镜像源

dahai7719

老师您好，我是买了gromacs材料自学的小白，在安照安装过程的提示一步步安装到第3步 grace时，最后没有成功，提示是好像找不到镜像源：安装Amber也有类似的问题，最后提示分别如下：
...
  OpenEXR-libs-1.7.1-8.el7.x86_64: [Errno 256] No more mirrors to try.
  libotf-0.9.13-4.el7.x86_64: [Errno 256] No more mirrors to try.
  1:emacs-common-24.3-23.el7_9.1.x86_64: [Errno 256] No more mirrors to try.
  urw-base35-standard-symbols-ps-fonts-20170801-10.el7.noarch: [Errno 256] No more mirrors to try.
  urw-base35-nimbus-sans-fonts-20170801-10.el7.noarch: [Errno 256] No more mirrors to try.
  ImageMagick-6.9.10.68-6.el7_9.x86_64: [Errno 256] No more mirrors to try.
  t1lib-5.1.2-14.el7.x86_64: [Errno 256] No more mirrors to try.
  ilmbase-1.0.3-7.el7.x86_64: [Errno 256] No more mirrors to try.
  urw-base35-nimbus-roman-fonts-20170801-10.el7.noarch: [Errno 256] No more mirrors to try.
  libaec-1.0.4-1.el7.x86_64: [Errno 256] No more mirrors to try.


下面是amber安装失败的提示
...
Error downloading packages:
  libX11-common-1.6.7-4.el7_9.noarch: [Errno 256] No more mirrors to try.
  libICE-devel-1.0.9-9.el7.x86_64: [Errno 256] No more mirrors to try.
  libXt-devel-1.1.5-3.el7.x86_64: [Errno 256] No more mirrors to try.
  libX11-1.6.7-4.el7_9.x86_64: [Errno 256] No more mirrors to try.
  libXext-devel-1.3.3-3.el7.x86_64: [Errno 256] No more mirrors to try.
  libX11-devel-1.6.7-4.el7_9.x86_64: [Errno 256] No more mirrors to try.
  libSM-devel-1.2.2-2.el7.x86_64: [Errno 256] No more mirrors to try.

dahai7719

老师 这个问题已经解决 ，主要是学校的网络问题，自己琢磨自动分配的IP很难稳定的访问到安装镜像源，换了地方后安装成功，如果有此类问题的同学可以用静态IP试试，可能能解决，这个只是我的猜想！