Using Mini vMac image on Plus with SCSI2SD

larbob

New Tinkerer
Nov 2, 2021
29
11
3
I'm trying to get a disk image created in vMac up on a Plus through the SCSI2SD. I've already followed codesrc's HFS from scratch guide (https://www.codesrc.com/mediawiki/index.php?title=HFSFromScratch) and have used that to prepare the image, but the Plus just goes into a reboot loop or shows corruption on the screen. I used DriveSetup1.7.3_DriverPartition.img instead of lido.img as I've heard the lido drivers don't play well with the Plus. Does Drive Setup 1.7.3's also not work? What's the recommended driver. The Plus does work and I can fully boot into the system using a Floppy Emu with the straight-from-vMac image.

For the SCSI2SD configuration, I've enabled responding to short selection pulses, set SCSI selection delay to 0, and set enable unit attention to off.

I've also verified that the image I've created boots in Basilisk II.

I'm guessing this is a driver issue, is there an image of an older driver partition which is compatible? I also tried Drive Setup 1.5's but had the same issue. I'm guessing Drive Setup's is far too new.
 
Last edited:

eric

Administrator
Staff member
Sep 2, 2021
1,097
1,811
113
MN
bluescsi.com
vMac only supports hfs partitions. You would have to extract the partition out of the raw disk image that contains the driver and partition map. vMac doesn't support scsi and I believe patches the rom to allow any arbitrary sized hfs partition.

It is on their radar to support these raw scsi drives possibly sometime in the future.
 

larbob

New Tinkerer
Nov 2, 2021
29
11
3
vMac only supports hfs partitions. You would have to extract the partition out of the raw disk image that contains the driver and partition map. vMac doesn't support scsi and I believe patches the rom to allow any arbitrary sized hfs partition.

It is on their radar to support these raw scsi drives possibly sometime in the future.
Thanks; FWIW I realize this, I'm trying to get the image from vMac to a Mac, not the other way around.
 

larbob

New Tinkerer
Nov 2, 2021
29
11
3
I also tried extracting the driver from SavageTaylor's 6.0.8 2GB image through

Code:
dd if=608_2GB_drive.dsk of=../driver43.img skip=64 bs=512 count=32
.

It appears to be from HD SC Setup 7.3.5 looking w/ a hex editor, but the same thing happens on the Plus. Hm.
 

eric

Administrator
Staff member
Sep 2, 2021
1,097
1,811
113
MN
bluescsi.com
Whoops I misread! I haven't seen that page before but I'll give it a try. I've been working on making some of these operations easier.
 
  • Like
Reactions: larbob

larbob

New Tinkerer
Nov 2, 2021
29
11
3
Weirdly enough writing SavageTaylor's 2 GB 6.0.8 image to the SD card booted fine... I'm guessing I can just copy every thing over from my drive to their 6.0.8 image using Basilisk II and that'll be fine, but that doesn't explain why this was an issue in the first place. If anyone has ideas, please let me know! :D

EDIT: I believe the partition type should actually be Apple_Driver43 in this case as that's what it is in SavageTaylor's image which works. Let's try.

EDIT 2: Nope, still doesn't want to work weirdly. Looks like this may be the way for now!
Capture.PNG


EDIT 4: This way of course worked but I'd like to know what was wrong before. Anyways, it's working! Yay!

IMG_3637.jpg
 
Last edited: