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Author Topic: A1200 modifying.  (Read 1788 times)

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Offline pyrreTopic starter

A1200 modifying.
« on: December 15, 2007, 09:30:29 PM »
I have been thinking about doing a A1200 mod myself.
Seeing pictures of already done mods and reading other peoples ideas. I would like to develop one of my own.

Internal CD-rom is a must, buffered IDE is to.
However, speeding up the A1200 is not a goal at the start. That can be done later on.
But replacing the floppy drive with a ZIP drive.

Then my question, is it possible to run a ZIP drive on the A1200 IDE (using a buffered IDE and IDEfix)?

EDIT: I forgot the most important question.
Is it possible to boot from an IDE zip drive?
(i have a working bootable SCSI zip configuration)
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Amiga 1200 Tower Os 3.9
BPPC 603e+ 040-25/200, 256MBram, BVIsionPPC, Indivision AGA MK2.
Amiga 2000 (rev 4.0) Os 1.2/1.3
2088 bridgeboard, 2MB ram card, 2091 SCSI.
Amiga 500+ Os 2.1
Derringer 030, 32MBram, Buddha in sidecar, Indivision ECS.
Amiga CD32
Video decoder
 

Offline Homer

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Re: A1200 modifying.
« Reply #1 on: December 15, 2007, 11:10:19 PM »
Hi, I use an IDE Zip drive in my A1200t, on a four way splitter. As I remember, the earliest "Eyetech" drivers allowed me to boot from a Zip disk, but the later ones did not. I can't remember the reasoning behind the change, but it may have been due to allowing disk changes after booting from HD. Can anyone elaborate ?
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Offline Kronos

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Re: A1200 modifying.
« Reply #2 on: December 15, 2007, 11:17:27 PM »
If you want to boot from a ZIP you have to partion it (read put an RDB on it). Wether the drive will like diskcahnges afterwards is another question....

Formating it as removeable media (with mountfile) will cure that but won't autoboot unless you are able to alter the ROM (with Kickflash or similar).
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1. Make an announcment.
2. Wait a while.
3. Check if it can actually be done.
4. Wait for someone else to do it.
5. Start working on it while giving out hillarious progress-reports.
6. Deny that you have ever announced it
7. Blame someone else
 

Offline pyrreTopic starter

Re: A1200 modifying.
« Reply #3 on: December 16, 2007, 09:50:26 PM »
I only need/want the bootable option because when the floppy drive go away the zip drive is the only mean to partition/setup the system. And rescuing it if nescesery.
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Amiga 1200 Tower Os 3.9
BPPC 603e+ 040-25/200, 256MBram, BVIsionPPC, Indivision AGA MK2.
Amiga 2000 (rev 4.0) Os 1.2/1.3
2088 bridgeboard, 2MB ram card, 2091 SCSI.
Amiga 500+ Os 2.1
Derringer 030, 32MBram, Buddha in sidecar, Indivision ECS.
Amiga CD32
Video decoder
 

Offline FrenchShark

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Re: A1200 modifying.
« Reply #4 on: December 18, 2007, 04:42:59 AM »
Hello,

I actually want to do the same stuff with an LS-120 drive in my future Minimig 1200.
The piece of code to add a boot drive during startup is quite straightforward : it is few calls to the expansion.library and dos.library. I have an example in the AT-Apollo.device replacement I wrote 11 years ago.

Regards,

Frederic
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