A500 GVP HD8+ Hard Drive ROM 3.7 vs 4.15

08 July 2010, 04:31

Here is one...

Just burned a 27256 with the latest 4.15 of gvpscsi ROM as I was trying to see more than 491MB on a 9Gig hard drive.... The computer and drive functioned fine, but I got the same MB detection and yes I upgrade the gvpscsi files in the exp folder and version tested everything, but also as a result the system won't autoboot the hard drive.

So, I plugged ROM 3.7 back in and once again it autoboots DH0:.

Is there something in the new ROM that disables autobooting, or anyone have any suggestions?

I may try 3.15 next, but since I'm not seeing anymore disk space with the 4.15, whats the point...ttyl

Zetr0 · 08 July 2010, 04:54

@ttyl

recently I burned a 4.15 ROM and have seen much improvment in capacity.

I did however use HDToolsBox from OS3.1 - this was able to see and setup several partions on an 18.1GB SCSI U2W drive (with a 50pin adapter) *remember to change the icon tool type from "scsi.device" to "gvpscsi.device"

I assume that when you programmed the 27c256 with the Hex file that you copied the original 16K file and added it to the end of itself (making a 32K file to be programmed) - this is required to do as the upper address is not asserted and left floating.... as such it will have issues if it manages to boot.

08 July 2010, 05:26

I actually burned a 27c512 and concatenated it 4 times (my 27256's were 300ns and didn't work with errors)...

Interesting, my 9 gig is 68 pin used w/adapter too. I'm using 2.04 kickstart, waiting on a 3.1 that is in the mail. maybe that will help.

08 July 2010, 05:36

Quote:

Originally Posted by Zetr0

@ttyl
*remember to change the icon tool type from "scsi.device" to "gvpscsi.device"

So copy gvpscsi.device to DEVS/scsi.device? or do you mean click on the DH0: icon -> information and change that to gvpscsi.device?

sorry, newbie here...

thanks,
ttyl

Hewitson · 08 July 2010, 06:33

He means the latter.

Zetr0 · 08 July 2010, 14:14

what works for me -

1. copy the gvpscsi.device to the expansion directory
2. open the "tools" directory on workbench disk
3. edit the icon information of HDToolBox
4. change the "SCSI_DEVICE_NAME=scsi.device" to "SCSI_DEVICE_NAME=gvpscsi.device"

There is a drawback - you will need to update your FastFileSystem to take advantage of the SCSI-DIRECT that is supported with the GVP impact Series 2 Controller - or you could use PFS2 or 3 for this purpose.

Unless you have an 020 or faster cpu, you wont be able to use SFS (SmartFileSystem)

Have a look on AmiNet theres plenty of software to help there.

I have say that I noticed the eProm you are using is 300ns.... thats quite slow, personally I have not used any slower than 200ns on these devices - not sure if that (300ns) ROM speed would cause any issues though - but it is possible.

Anyway for increased performance, I would suggest looking up Transfer Masks, especially 24bit transfer mask... as the GVP I2 SCSI controller is a 24bit DMA unit.

08 July 2010, 17:18

Thanks for the responses. Hopefully the 3.1 kickstart will be here soon.

The 27512 that I settled on is 120ns...the 27128&27256's that I have are 300ns - that's why I chose the 512 and concatenated 4 times. the slower chips were giving me crashes.

I'll d/l the ffs later today and see how that works. sounds promising

Zetr0 · 08 July 2010, 17:36

@ttyl

Good luck =)

A a couple of fellow members here Thomas and rkauer are absolute GURU's when it comes to this stuff, so if you still get unlucky, and neither see this thread, just give'em a poke my PM =)

08 July 2010, 04:31	#1
ttyl Posts: n/a	A500 GVP HD8+ Hard Drive ROM 3.7 vs 4.15 Here is one... Just burned a 27256 with the latest 4.15 of gvpscsi ROM as I was trying to see more than 491MB on a 9Gig hard drive.... The computer and drive functioned fine, but I got the same MB detection and yes I upgrade the gvpscsi files in the exp folder and version tested everything, but also as a result the system won't autoboot the hard drive. So, I plugged ROM 3.7 back in and once again it autoboots DH0:. Is there something in the new ROM that disables autobooting, or anyone have any suggestions? I may try 3.15 next, but since I'm not seeing anymore disk space with the 4.15, whats the point...ttyl

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08 July 2010, 04:54	#2
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	@ttyl recently I burned a 4.15 ROM and have seen much improvment in capacity. I did however use HDToolsBox from OS3.1 - this was able to see and setup several partions on an 18.1GB SCSI U2W drive (with a 50pin adapter) *remember to change the icon tool type from "scsi.device" to "gvpscsi.device" I assume that when you programmed the 27c256 with the Hex file that you copied the original 16K file and added it to the end of itself (making a 32K file to be programmed) - this is required to do as the upper address is not asserted and left floating.... as such it will have issues if it manages to boot.

08 July 2010, 05:26	#3
ttyl Posts: n/a	I actually burned a 27c512 and concatenated it 4 times (my 27256's were 300ns and didn't work with errors)... Interesting, my 9 gig is 68 pin used w/adapter too. I'm using 2.04 kickstart, waiting on a 3.1 that is in the mail. maybe that will help.

08 July 2010, 06:33	#5
Hewitson Registered User Join Date: Feb 2007 Location: Melbourne, Australia Age: 41 Posts: 3,773	He means the latter.

08 July 2010, 14:14	#6
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	what works for me - 1. copy the gvpscsi.device to the expansion directory 2. open the "tools" directory on workbench disk 3. edit the icon information of HDToolBox 4. change the "SCSI_DEVICE_NAME=scsi.device" to "SCSI_DEVICE_NAME=gvpscsi.device" There is a drawback - you will need to update your FastFileSystem to take advantage of the SCSI-DIRECT that is supported with the GVP impact Series 2 Controller - or you could use PFS2 or 3 for this purpose. Unless you have an 020 or faster cpu, you wont be able to use SFS (SmartFileSystem) Have a look on AmiNet theres plenty of software to help there. I have say that I noticed the eProm you are using is 300ns.... thats quite slow, personally I have not used any slower than 200ns on these devices - not sure if that (300ns) ROM speed would cause any issues though - but it is possible. Anyway for increased performance, I would suggest looking up Transfer Masks, especially 24bit transfer mask... as the GVP I2 SCSI controller is a 24bit DMA unit.

08 July 2010, 17:18	#7
ttyl Posts: n/a	Thanks for the responses. Hopefully the 3.1 kickstart will be here soon. The 27512 that I settled on is 120ns...the 27128&27256's that I have are 300ns - that's why I chose the 512 and concatenated 4 times. the slower chips were giving me crashes. I'll d/l the ffs later today and see how that works. sounds promising

08 July 2010, 17:36	#8
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	@ttyl Good luck =) A a couple of fellow members here Thomas and rkauer are absolute GURU's when it comes to this stuff, so if you still get unlucky, and neither see this thread, just give'em a poke my PM =)

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