What do the last two fields in fstab mean?

The last two fields on each line in fstab (dump and pass) are some numbers (usually, 0).

What do these numbers mean?

# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    nodev,noexec,nosuid 0       0
UUID=030ccf66-5195-4835-ba3e-f5d7a5403c05 /               ext4    errors=remount-ro 0       1

Here is Solutions:

We have many solutions to this problem, But we recommend you to use the first solution because it is tested & true solution that will 100% work for you.

Solution 1

Copy/paste from man fstab:

The fifth field, (fs_freq), is used for these filesystems by the
dump(8) command to determine which filesystems need to be dumped.
If the fifth field is not present, a value of zero is returned and
dump will assume that the filesystem does not need to be dumped.

The sixth field, (fs_passno), is used by the fsck(8) program to determine
the order in which filesystem checks are done at reboot
time. The root filesystem should be specified with a fs_passno of 1, and
other filesystems should have a fs_passno of 2. Filesystems within a
drive will be checked sequentially, but filesystems on different drives
will be checked at the same time to utilize parallelism available in
the hardware. If the sixth field is not present or zero, a value of
zero is returned and fsck will assume that the filesystem does not
need to be checked.

Solution 2

Simple blockhead answer is , first field determines if it should be dumped, second field determines if it should be checked during startup and in what sequence. Check the manual for the rest!

Note: Use and implement solution 1 because this method fully tested our system.
Thank you 🙂

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