我从这里开始发帖：https://askubuntu.com/questions/655860/errors-were-encountered-while-processing-ca-certificates
主要是因为这让我几乎无处可去。
我正在尝试安装它：
sudo apt-get install git python-dev python-pip python-numpy python-scipy python-matplotlib
当我这样做时：
Updating certificates in /etc/ssl/certs... ln: failed to access ‘/etc/ssl /certs/Security_Communication_RootCA2.pem’: Input/output error
dpkg: error processing package ca-certificates (--configure):
subprocess installed post-installation script returned error exit status 1
E: Sub-process /usr/bin/dpkg returned an error code (1)
我尝试使用sudo apt-get autoremove和sudo apt-get clean卸载并重新安装，然后重新安装。
我的错误基本相同。
Setting up ca-certificates (20141019ubuntu0.14.04.1) ...
Processing triggers for ca-certificates (20141019ubuntu0.14.04.1) ...
Updating certificates in /etc/ssl/certs... ln: failed to access ‘/etc/ssl /certs/Security_Communication_RootCA2.pem’: Input/output error
dpkg: error processing package ca-certificates (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing: ca-certificates