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Amiga computer related discussion => Amiga Software Issues and Discussion => Topic started by: Chartus on February 05, 2015, 01:34:06 AM

Title: SFS directory sizes
Post by: Chartus on February 05, 2015, 01:34:06 AM

I just set up a 20 gig drive for my amiga 1200.
 I have 3 partitions,  500 meg, ~15 gig,  ~4 gig.  This is under 3.1 OS.  My question is this:
  When I open the 15 gig  directory it gives incorrect size information in the header.  Is this anything to worry about;
  or will it corrupt  the drive at some point.

Title: Re: SFS directory sizes
Post by: pVC on February 05, 2015, 06:03:53 AM

Do you mean directory (what are you using to get its size?) or partition itself?

Anyway, many old programs like filemanagers show wrong sizes if it goes over 4GB, but that's not serious.

What matters is partition sizes and if your system is correctly patched for big partitions. You should always check your setup with the Check4GB (http://aminet.net/package/disk/misc/check4gb) program.

Title: Re: SFS directory sizes
Post by: Chartus on February 05, 2015, 06:22:07 AM

Partitions are good. I ran the over 4gig program and it came back with OK.
I think it will be OK but I just wanted to check before I installed
programs on it.

Title: Re: SFS directory sizes
Post by: lionstorm on February 05, 2015, 06:25:51 PM

did you patch the scsi.device ?

you need the software to pass beyond the 4Go barrier (thats SFS) and the driver (thats scsi.device, assuming you are using the internal IDE).

support for larger drive (>4Go) was added in AOS3.5+ natively but for AOS3.1 you need to patch the scsi.device (patch is on Aminet).

Title: Re: SFS directory sizes
Post by: Chartus on February 06, 2015, 04:33:41 AM

Yes I patches it.  Typed version scsi.device  in cli and got back 37.something.  OOps I forgot to update my
scsi.device  so I did that and my 2 large partitions went NDOS.  
I had to reformat them so I lost an evening worth of un zipping game packs.

That's OK.  It's a learning experience.

Title: Re: SFS directory sizes
Post by: Thomas on February 06, 2015, 10:45:18 AM

Patching scsi.device and using SFS or PFS3 or similar makes it safe to store files on the partitions. But it does not magically remove the 4GB problems from all programs.

Workbench is one of the programs which tries to calculate the amount of free bytes with 32bit numbers. 17,179,869,184 just does not fit into a data type whose highest storable number is 4,294,967,295. Everything above that is cut off.

You will experience similar problems with many other programs. Copy programs might tell you that there is not enough free space to save files although there are gigabytes free and so on.

Title: Re: SFS directory sizes
Post by: Chartus on February 06, 2015, 04:26:47 PM

Thanks Thomas.  That is what I thought might be the case.