I have a Debian system on really small Flash memory like an embed system. A hard drive is mounted onto the system. I want to add more processes to the system like mail server. But the problem is /usr, /var, /etc are running out of space on the Flash memory. I'm planning to do the following:
- make /usr, /var, /etc, /home directories on the mounted hard drive. - copy /usr, /var, /etc, /home original directories to new created directories. - edit /etc/fstab to mount these directories to new created locations. - remove the old /usr, /var, /etc, /home directories. Is that unsafe to do so? Do files in these directories being accessed before mounting from /etc/fstab?
