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Amiga computer related discussion => Amiga Software Issues and Discussion => Topic started by: JohnFante on September 04, 2012, 07:46:40 AM

Title: Can not get OS4.1 classic to boot from CD
Post by: JohnFante on September 04, 2012, 07:46:40 AM

I am trying to install 4.1 classic on my A4000 with CSPPC, CVPPC, Adriana netcard and Tocatta sound card.

The problem is that when I try to boot of the boot floppy with the CD inserted it boots the floppy and starts to search the CD, resets (as it should) and then starts to load from the CD again. The screen (on my CVPPC) however stays black and after a short while it resets again and start all over. And it goes on and on.

I have 3 HD's, 2 CD's and a ZIP-drive connected to the SCSI.

The systen boots OS3.9 fine from HD and form an emergency boot floppy also so that part works.

I have tried to start the installation of 4.1 from OS3.9 but the error is the same. Is it something with my SCSI setup? I have just bought the machine so I can not say in details how it was built and my SCSI-knowledge is rather low - to say the least.

The drives are as follows.

Units:
Board 0 - Unit 1 - IBM DRHS36D 0110 33,9GB - where I want to install 0S4.1 to
Board 0 - Unit 2 - CD-ROM PX-32-TS
Board 0 - Unit 3 - HP35470A (ZIP)
Board 0 - Unit 4 - CD-R PX-W124TS
Board 0 - Unit 5 - Seagate ST150176LW 0001 46,5GB - where OS3.9 is installed at the moment (boot)
Board 0 - Unit 8 - Viking II 4,5WSE5520 - planned to install MorphOS here

Any suggestions?

My PPC works fine. Can play WipeOut for ages without any problems.

Thank you in advance.

Title: Re: Can not get OS4.1 classic to boot from CD
Post by: Kawazu on September 04, 2012, 08:47:24 AM

Have you changed the timeout settings on the scsi controller?
Hold ESC during boot and go into the scsi menu, the scsi controller should be on unit 6, can be mistaken there but you see where it is.
Just dubbelclick there and you see some sort of time out option, set that to the highest value and save and reboot and try with the floppy again.

Title: Re: Can not get OS4.1 classic to boot from CD
Post by: ck007 on September 04, 2012, 11:10:35 AM

I have the same problem with my set up.

I'm using a BPPC and a FastATA IV with a 4GB CF card on the primary channel and an IDE DVD/RW on the secondary channel.

The machine reboots, loads from floppy, then loads from CD, then reboots and repeats over and over.

I've disabled MAPROM and set RAM to 70ns as stated in the manual.

I'm not feeling the love... :(

Title: Re: Can not get OS4.1 classic to boot from CD
Post by: actung_bab on September 04, 2012, 11:20:45 AM

Think your both on right track its some setting in ppc start up to do with scsi oh crap
been so long since done this dont have my card anymore but its to do with setting
there diffently have set tp 70 ns , what other settings do you have its not id setting its more type scsi address or something along those lines

Title: Re: Can not get OS4.1 classic to boot from CD
Post by: JohnFante on September 04, 2012, 08:14:32 PM

Found the solution. Disabled MAPROM and set my rom til 60ns.

Installed fine and updated to update 5.

Looks very promising so far.

Thanks for the help :-)