fstab change partition

2025-04-09

hi,

my current partition:

/dev/sda3 20161204 1500600 17636464 8% /
/dev/sda1 101089 14509 81361 16% /boot
/dev/sda5 20161172 446512 18690520 3% /home
/dev/sda2 20161204 557656 18579408 3% /home2
/dev/sdb2 20161204 32828 19104236 1% /home3
/dev/sdb1 20161172 32828 19104204 1% /home4
none 769936 0 769936 0% /dev/shm
/dev/sdb5 10080488 1766976 7801444 19% /var
/dev/sdb3 10080520 123560 9444892 2% /var/db
/dev/sdb6 10072456 32828 9527960 1% /var2

i would like to change
/dev/sdb3 10080520 123560 9444892 2% /var/db
change /var/db to /var3

please give the step.

thanx alot