Linux (CentOS) installation partitioning scheme

/boot: Used to store the Linux system boot-related programs, such as boot loader, etc., the recommended size is 100MB.
/usr: used to store applications in Linux systems, with more relevant data, more than 3GB is recommended.
/var: used to store frequently changing data and log files in Linux systems, more than 1GB is recommended.
/home: The data for ordinary users is the host directory of ordinary users, the recommended size is the remaining space.
/: The root directory of the Linux system, all directories are hung under this directory, the recommended size is more than 5GB.
/tmp: The temporary disk in a separate partition, you can avoid the system when the file system is full of stability affected. The recommended size is above 500MB.
Swap: Implements virtual memory, the recommended size is one or more times of physical memory.

Linux (CentOS) installation partitioning scheme