Thank you for your reply.
I know your point, as the var is included in root partition. While, if i don't want to re-install my vm, if there anyway for me to extend the file system for root...
I am working with a virtual machine of redhat and hard-disk is 100g in all, and the system free size is about 60g.
while the problem is when i run command: df -h, the root path seems...