Macintosh Plus and bluescsi

[Wawavoun]

Hello,
The adventure continue with this Mac Plus !
I try to boot from scsi with a bluescsi system.

I have an image I made myself :

create an empty hda file of 20 MB with dd
run minivmac and boot it with 7.0.1 install 1 floppy image
format the empty hda file
install the system (all hardwares and all printers) to this disk
for test reboot minivmac with this file, ok !
move this image to the sd board and rename it HD10_512_blabla.hda
connect the blusscsi to the scsi port (modified with a diode so dont need power).
start the Plus..

No boot and if I boot with a floppy the scsi disk is not visible...
The Mac Plus is a revision C with 1 MB on board.

Any advices or solution ? Should I suspect the scsi port of the motherboard ?

Thanks and regards.
Philippe

 

[cheesestraws]

What you're running into here is probably a peculiarity of mini vMac: it treats large disc images as giant floppy discs, rather than as hard discs. So I'd bet that your disc image got formatted as a big floppy, which is missing information that a real mac needs to boot from it or indeed use it as a SCSI hard disc at all.

 

[Wawavoun]

You are right. Using a 6.0.8 pre made image alone on the sd media the Plus boot.

Image made from BasiliskII seems to have the same problem that with minivmac...

I have a azerty keyboard so I hope to use 6.0.8 L which can support it.

How can I made a suitable hard disk image with this system ?

Trying to open this pre made 6.0.8 image Minivmac say its not a Mac disk and BasiliskII refuse to boot on it complaining about 24 bits...

Thanks.
Philippe

 

[cheesestraws]

Add the premade 6.0.8 image to Basilisk II as a secondary disc, not the boot disc. Don't boot from it, it won't like that. You can then install 7.x on it or something.

 

[Wawavoun]

Hello,

Okay now I have my bluescsi working on the Mac Plus with 7.0.1 FR. This is working only if I put only one active image on the sd board.

Now I try to get two images working at the same time.

I use dd to create an empty file with a suitable name on the side of the image with the system disk.
Then the Plus boot well. But nothing about the second disk...
Scsiprobe can see it (same model and manufacturer as the system disk) and he look to be mounted (first cell black on his line) but nothing on the desktop and no ask for formatting (which is what I expect after the boot)...

I have also try with a simple copy of the system disk(of course with another scsi identifier).
In this case the Plus wont boot and become crazy...

Any help appreciated.
Thanks.
Philippe

 

[cheesestraws]

Scsiprobe can see it (same model and manufacturer as the system disk) and he look to be mounted (first cell black on his line) but nothing on the desktop and no ask for formatting (which is what I expect after the boot)...

You'll need to use something like HD SC setup to prepare the disc and give it a partition table etc. There are multiple options for these tools, but be careful with Lido: only some versions work with the Plus properly.

 

[Wawavoun]

Patched HD SC setup detect the disk but refuse to initialize the disk...

 

[Wawavoun]

Hello,

Finally, and with Eric Helgeson help, the problem is solved.
I have use Softmac to initialize a blank image with patched HD SC Setup 7.5.3. Then using BasiliskII I install 7.0.1 FR onto this image.

The Plus boot well and I can use the same but empty image as second disk.

If the scsi driver on the disk is equal or higher than 8 the Plus cant use multiple scsi disks or images.

Philippe