Read the first post in the thread, for a start. The first post only, since it gives you the shapes. https://indianguitartabs.com/showthread.php?t=10910 I'll give you an indepth lesson if you want one but it will have to wait a day or so....I'm a bit busy now.
the basic pattern of a minor pentatonic is this... for example the A minor pentatonic e-----------------------------5--8 B------------------------5--8-- G------------------5--7------- D------------5--7-------------- A------5--7------------------- E-5--8------------------------ notice that as u start playing this...u are playing the notes... A C D E G A C D E G A C so the A minor pentatonic scale is 5 notes ( from the name penta means 5) A C D E G A now....c for urself the intervals between the notes.... the intervals are... one and a half step from A - C then one step from C - D then again one step from D - E, then one and a half step from E - G , then again one step from G - A .... (in my terms, i call this a formula for a scale (minor pentatonic formula in this case..)) now u can apply the formula to any note like B C D E F G.... u'll get its minor pentatonic scale... for example : for a B minor pentatonic scale...apply the formula : 11/2 , 1 , 1, 11/2, 1 (in the formula...tht is not 11 divided by two...tht is one n a half) so for B....add one a half steps .... u get D...then add one step to D, u get E, then add one step to E, u get F#... . then add one and a half step to F#, u get A ..then add one step to A u go back to be... so the B minor pentatonic scale is: B D E F# A B.. .... this can be played using the basic pattern starting from the 7th fret... e-----------------------------------7--10-------- B---------------------------7--10---------------- G---------------------7--9---------------------- D---------------7--9--------------------------- A---------7--9--------------------------------- E--7--10----------------------------------------- hope u understand the minor pentatonic scales now...