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Old 29 July 2012, 18:28   #14
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PFS3 Short Install Guide

Install first another. Change it later to PFS3 when you have access to the PFS3 files you've stored in your Pcmcia or whatever.
Or -easier- on WinUAE you can directly install PFS3 if you add a folder of your PC in "CD&Hard drives" with the PFS3 files.

Download it here:

This for PFS3AIO:

And this is the original, but it also has the tools that you should have (PFSDoctor is the one I would copy):

You can use PFS3 without changing the scsi.device with your 4Gb CF.

Originally Posted by Jope View Post
OS up to 3.1:
PFS3DS + unpatched scsi.device = you can use a cf card up to 8GB
PFS3 + unpatched scsi.device = you can use a cf card up to 4GB

You can use larger cards with a patched scsi.device and the non-ds version of PFS3.
And with PFS3AIO:

Originally Posted by Toni Wilen View Post
SCSI controllers rarely need patches if filesystem uses directscsi. (PFS3AIO/PFS3DS)
Originally Posted by Toni Wilen View Post
... if you use PFS3 dostype instead of PDS3 (=NSD will be used, not DirectSCSI)
When you select it with HDToolBox (Workbench 3.1 Install floppy*) to change the file system (Highlight the partition, Click Add/Update, Add New Filesystem, then put the path of the file of PFS3, then Ok) you have to overtype the 0x43465300 or whatever you have depending on the FS you're using. The numbers that you are going to write is the hexadecimal code that represents the name of the file system.

PFS3: 0x50465303 (it's the numeric code of the name of the File System).
or if you want to use
PFS3DS: 0x50445303

And later change it in each partition: Select a partition, Click on Change, Click on the top box until it cycles through PFS3 or PFS3DS that you want to install.

You have to know this:
Mask: 0x7FFFFFFE
Max Transfer: 0x0001FE00
About buffers for each partition, in the instructions says to use 150 buffers for normal partitions, 250 for bigger ones and MAX for the rest, so you can use 150 for DH0 and 250 for the other; for a large partition Max is 600.

Originally Posted by thomas View Post
... MAX means the maximum you can afford. Each buffer has the size of one disk block. So with a block size of 512 bytes (0.5 KB), 200 buffers need 100 KB of RAM. Depending on how many partitions there are and how much RAM the computer has, this can be quite expensive. For example on an A500 with 512 KB RAM, using 100 KB for HDD buffers hurts quite a lot.
Also IIRC the PFS3 manual says that PFS3 cannot handle more than 600 buffers, so with PFS3 "MAX" is equivalent to 600.

Remember pressing return after each thing you'll change (recheck them twice changing the screen).

Anyway, you have to know that changing to PFS3 you will have to format each partition you'll change, so make a backup, and never do a full format but a quick one (longer life for your CF).

If you want to change the buffers after installing it, you don't lose any data making that and you won't have to format it again, so you can do it.

If you need to change/update the scsi.device (>8Gb HD):
Originally Posted by emufan View Post
Don_Adan rewrote the scsi.devce - and from the comments it does work very well.
Latest version is available here. called SCSI.lzx .
this might be a candidate for you, replacing the original scsi.device

If you want try the new scsi.device, follow these steps:

1) download SCSI.lzx from site above - store in RAM: ( for example )
2) you need lzx and loadmodule from aminet
3) loadmodule command must sit in folder c:
4) in a shell / amigados ( icon in workbench --> system --> Shell )
type: lzx x ram:scsi.lzx devs:
5) edit startup-sequence - in the shell type
ed s:startup-sequence
insert the following on top of the startup-sequence:

IF EXISTS DEVS:scsi.device_A1200
C:LoadModule DEVS:scsi.device_A1200
save startup-sequence and reboot.
hdtoolbox should show correct size of your new 40 gb harddrive.
Well, before making this change in the s-s take a look because it can already have a Loadmodule... Devs:scsi.device. In that case you can edit the s-s or just rename in Devs your scsi.device to scsi.deviceOriginal and copy there the new scsi.device_A1200 and rename it to scsi.device.

I think this is a good, detailed and the shortest guide IMHO .

*If you are installing it in WinUAE, you have to change the HDToolbox of the WB3.1 Install adf, right clicking, selecting information from the icon and changing it to SCSI_DEVICE_NAME=uaehf.device

Last edited by Retrofan; 10 March 2018 at 23:51.
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