What are the numbers in /etc/fstab ?

Question

linux

The ubuntu wiki says that the syntax is:

hard_partition mount_point file_system mount_options two_auxiliary_numbers

What are the two auxiliary numbers?

Answer 1

Whether to run dump for a given FS, and the order in which the file system is mounted, respectively.
The first is now practically not used, and is equal to zero.
The second is important: when you have the mount point of one file system located on the second, the second should have a smaller value.