在安装使用Cobbler web界面的时候提示HTTP 500错误，也就是服务器内部错误，检查防火墙和selinux都是为关闭状态，后面查看日志发现报错信息如下：
其实就是python django 的问题。
解决办法：
1、安装python2-pip
# yum -y install python2-pip # pip install ipaddress
2、安装django
# pip install Django==1.8.9
3、重启httpd
# systemctl restart httpd
再次刷新页面访问http://IP/cobbler_web即可
错误信息：/sbin/dmsquash-live-root:line286:printf:write error:no space left on device
解决办法：内存不足，增加客户机内存最少为2G 参考
参考：https://access.redhat.com/solutions/3353961 Issue Provisioning a system via kickstart using Red Hat Satellite fails with the below error: dracut-initqueue[552]: /sbin/dmsquash-live-root: line 273: printf: write error: No space left on device Resolution In the compute profile for the affected Compute Resource, increase the value of the memory to 2048 MB and then provision a system. Root Cause The memory defined for the system is not sufficient hence it is unable to process/download the live image. Minimum of 2GB of memory should be allocated.
原文：https://www.cnblogs.com/wjlovezzd/p/13170235.html