Sfs....

[xc8]

Hi,

I am trying to install the SFS on my HD (CF).

When I add the filesystem is identified as 'international filesystem' (0x444f53003), but the instructions on http://intuitionbase.com/static.php?...FS-walkthrough say '53465300' (and I suppose to see the new fs as SFS/00)
now what?

thx

Chris

[daxb]

The correct one is 0x53465300 (HEX) = SFS0 (ASCII)

[killergorilla]

Look at the info in this guide, it should help

http://wiki.abime.net/amigaos_workbench/sfs

[Zetr0]

Hiyas my friend,


I have set a couple of 40GB IDE drives up using this walkthrough and they have all worked very well.

however this is ONLY when I set this up on the native Amiga, I seem to get errors and problems when trying it on WinUAE.

Originally Posted by xc8

Hi,

I am trying to install the SFS on my HD (CF).

When I add the filesystem is identified as 'international filesystem' (0x444f53003), but the instructions on http://intuitionbase.com/static.php?...FS-walkthrough say '53465300' (and I suppose to see the new fs as SFS/00)

1. copy the updated scsi.device to Devs:
2. copy SmartFileSystem to L:
3. copy sfsformat to C:

reboot


Now depending on which version of HDTools you are using, I am using the one that comes with ClassicWorkbench Advance and theres no SFS/00 option, just a Dos hex identifyer (where I type 0x53465300) you then add the file system in Change/Update to

l:SmartFileSystem ( this "smartfilesystem" needs to be copied to L: )
Dos Identifyer - 0x53465300
there rest doens't matter.

once done and you have set your partition sizes (although HDTools can only see 4GB chunks just work out in your head how many times you have seen this barrier)

Set Transfer Mask to 0xFFFFFFFF (8x F's) using the native Amiga ide this will default to 0xFFFFFFFE as it can only do 16 bit, even word transfers.

(holy crap! some of that document stuck in my head!)

Max transfers will be dependent on the device but the documents does suggest a value to use.

once the changes to the disk are saved, you will need to format that these for SFS.

I use the Command line so you will need to copy "sfsformat" to c:

sfsformat DEVICE <device> NAME <name> - i.e.

sfsformat DEVICE DH0: NAME Workbench

this will now quick format the device partition.

I have had some good success with this and I am currently setting up another large HDD with 2x 8GB partitions, one 14GB parition and a boot partition of 512MB, since it doens't need to be any bigger.

it is suggest to use atleast 100 buffers for the device in question (remember that this is 100x the block size which is 512bytes = 51200 bytes (50KB))


hope this helps my friend.

[Zetr0]

Originally Posted by killergorilla

Look at the info in this guide, it should help

http://wiki.abime.net/amigaos_workbench/sfs

my friend, I noticed in the wiki the following

Originally Posted by wiki

Type the following information EXACTLY into the corresponding boxes

Mask = 0x7ffffffe (There are 6 f’s)
MaxTransfer = 0x1fe00
Blocksize = 512

Make sure you press Return after you enter each value. Now Click Ok This should return you to the partition screen. We now set Buffers = 100 (Again make sure to press Return)

I highlight the MASK as I am sure that this setting 0x7FFFFFFe is to use 24bit DMA moves, which the native IDE cannot use and could cause problems with some devices.

Thomas would know for sure, so I hope he's see the thread soon..

I have been using the following guides

http://amiga.palbo.dk/sfs/
http://wnd.katei.fi/amiga/hd.html

as well as bloodwych's tutorials and thomas's guides too.

[killergorilla]

Thomas told me to use those:

http://eab.abime.net/showthread.php?p=155778#post155778

[xc8]

Thanks a lot guyz!!!!

I am trying to install the CF under WinUAE, as the CF f* up completely and I thought it would be quicker to do this via the WinUAE (as I have a hdf backup of the system partition)

I think I will setup a quick wb on a usb stick and boot with this (on the Amiga via the Deneb) , then perform the format etc there...

Chris

[thomas]

Originally Posted by Zetr0

this setting 0x7FFFFFFe is to use 24bit DMA moves

Eight hexadecimal digits represent 32 bits. If the upper and the lower bits are set to zero, you still have 30 bits. So how can this be 24bit DMA ?

In order to allow 24bit DMA, you set the upper 8 of the 32 bits to zero: 0x00ffffff or 0x00fffffe.

Note that you cannot force DMA by changing the mask. The mask only directs which memory can be used to allocate buffers. If you allow buffers to reside in all available memory, then 24bit DMA cannot be used and if you force buffers into the lower 16 MB (that's what can be addressed by 24 bits), 24bit DMA is possible.

Taking into account that the AllocMem function only accepts a few flags, you can translate the mask value into these possibilities:

0xffff**** -> MEMF_ANY (no restriction)
0x7fff**** -> MEMF_ANY (lower 2G only, but this is an AmigaOS restriction anyway, so no difference to the above)
0x00ff**** -> MEMF_24BITDMA
0x007f**** -> MEMF_CHIP

AFAIK addresses returned by AllocMem are always divisible by 64, so the following thoughts are of theoretical nature only:

0x****ffff -> no alignment restriction
0x****fffe -> aligned to short words (two bytes)
0x****fffc -> aligned to long words (four bytes)

That's all there is about mask. All other values are of no use and are either ignored or lead to unpredictable results. (Like 0x12345678 which does not make any sense and can never be fulfilled by AllocMem)

[matthey]

Originally Posted by thomas

AFAIK addresses returned by AllocMem are always divisible by 64, so the following thoughts are of theoretical nature only:

I believe the default for AllocMem() on the classic Amiga has been 8 byte (divisible by 8 bytes, LONG LONG aligned) aligned for a long time. The Autodocs only say that the allocated data is guaranteed to be long word (4 byte, divisible by 4) aligned though. I believe TLSFmem allocations are 16 byte aligned. You are a much more experienced programmer than me though so maybe you can expand on this some more? The rest of your explanation is very good and logical.

[Zetr0]

@Thomas

my sincere thanks, NOW it all makes sense!!!!


@KG

my sincere appologies, I have been hammering a lot of scsi setups lately, i had incorrectly assumed that such a mask was for SCSI 24bit DMA.

[killergorilla]

Originally Posted by Zetr0

@KG

my sincere appologies, I have been hammering a lot of scsi setups lately, i had incorrectly assumed that such a mask was for SCSI 24bit DMA.

You don't need to apologise!

[Foul]

and just one thing : .. PFS3 is better

[xc8]

Originally Posted by Foul

and just one thing : .. PFS3 is better

... and soon free too eh ?

Chris