Tuning Bass - Sets Where You Learn Notes On The Bass
The first non guitar common way of tuning bass is to tune the lowest string to B looking at it as the new 5th string as adding another lower string to the bass and then for the other strings, keep the same standard tuning resulting in (B – E – A – D – G).
Or like the first option, look at your 5th string as adding another higher string to the bass bringing it closer to a 6 string guitar but keep the tuning in 4ths still. So the high string would be C (E - A - D - G - C).
A common 6th string way of tuning bass, if not using a guitar tuning is like the previous 5th string tuning in 4ths and then you look at adding another lower string to the bass and making that B string to the bass bringing it closer to a 6 string guitar but keep the tuning in 4ths still. So the high string would be C (E - A - D - G - C).
Of course the method of tuning bass you use, will then decide where you will learn your note names on the fretboard. Our program uses standard Open E tuning like a guitar for the bass. Why - read bass guitar tuning.

