How do I backup my Linux system disk
In my Linux operating system I have divided disk space generally with two independent purposes: system data and user data.
When I do potentially dangerous tasks, such as change important system settings, re-install all system, re-partition disk and so on I used to backup data. This is done as root:
#tar -cvPf /home/root/Backups/backup.tar /bin /boot /etc /lib [...]