Hello Patrik!   
      
   27 Aug 17 12:33, you wrote to me:   
      
    IJ>> Yes, I tried that, but no luck.   
    PA> What exactly did not work? Adding the file system to the RDB with   
    PA> correct DosType or be able to select "PFS\03" as "File System:" in   
    PA> HDToolBox?   
    PA> It should look like this:   
    PA> http://megaburken.net/~patrik/HDToolBox/File%20System%20Maintenance.pn   
    PA> g http://megaburken.net/~patrik/HDToolBox/File%20System%20Characterist   
    PA> ics.png   
      
   Yep, it looked that way, but...   
      
    PA>>> Then reboot and do a quick format of the partition. PFS will   
    PA>>> show a requester when you format it confirming it is formatted   
    PA>>> using PFS.   
    IJ>> Nope, no requester. It tried to format it as FFS.   
    PA> In that case, the "File System:" DosType for that partition must have   
    PA> been something else than 0x50465303/"PFS\03". If you attempt to format   
    PA> a partition with a non-standard file system DosType from Workbench,   
    PA> you will not get the option to select "Fast File System:" and if you   
    PA> format from the shell, the FFS switch will not have any effect.   
      
    PA> Also always remember to only do quick format if you are under 3.1 as   
    PA> the zero writing part of a non-quick format is done by the formatting   
    PA> program itself, not the filesystem handler and is not 4GB+ aware and   
    PA> will wrap.   
      
   ... I always did a full format and not a quick format. Guess, that was the   
   mistake why it didn't work. :-)   
      
    PA>>> OS3.9 is nice and has a more user friendly HDToolBox, however it   
    PA>>> is not needed if your goal is to use the entire 4GB+ drive with   
    PA>>> PFS3.   
    IJ>> So far, OS3.9 is running quite well. Makes me wondering why I   
    IJ>> refused to update earlier. Maybe because it's not the "original"   
    IJ>> OS3.1.   
    PA> I understand what you mean =). I still run 3.1 on a couple of Amigas,   
    PA> like the A2000 I am writing this on, as it feels more "original".   
      
   Yes, exactly! The new icons look awful - or something is wrong with my   
   palette. However, OS3.9 is a leap forward in regards of large disks, so I   
   guess I'll stick with it... :-)   
      
   Anyway, thanks for your support! :)   
   Ingo   
      
      
   --- GoldED+/LNX 1.1.5--b20170303   
    * Origin: AmigaXess - back in FidoNet after 17 years  (2:2452/413)