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Fitting a SCSI2SD in a 68k Mac

Dog Cow

Well-known member
The .bin file is likely a BinHex file, on a classic Mac I use Aladdin StuffIt Expander to decode these.
No, it's more likely a MacBinary file, which Stuffit Expander will also decode.

BinHex extensions were: hqx, hcx and hex. These latter two are quite ancient, dating from around 1984-85 when Binhex was an MS BASIC program.

 

dochilli

Well-known member
@BL!

General settings are ok.

My Device 1 is configured as shown in the picture. This works on my SE/30 with OS 7.5.3.

I formated the disk with this configuration with Lido and had success. In Lido I divided it in 4 drives with 2 GB.

Konfiguration Macintosh 8GB.jpg

 
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dochilli

Well-known member
On my Plus I used these configuration.

If I remember right, I had the same problem that there were only 20 MB formatted with Apples HD formatter.

I do not remember right, how I got the 2GB formatted, but as far as I remember, I used Lido afterwords or I formatted it from the Special menue (Erase Disk).

Here is the information of a post I made in this thread:

I used the description of MOS8_030. The vendor etc. were Seagate and ST225N. Device Size: 8 GB; HD SC Setup formated 20 MB. OS 6.0.8

Then I was able to format the 8 GB SD with Lido 7.56. I installed 4 Partitions (First 1 GB; 2-4: 2GB). Formatting and partitioning was done in Lido. Now I have 4 drives mounted and the plus booted from the first partition. For me Lido worked and produced a bootable SCSI2SD. When I tried this some weeks ago, it did not work. My SCSI2SD has firmware 4.8 (former was 4.7) and I use the newest software. I think the settings in the general settings tab are very important for creating bootable SCSI2SD for a Mac plus.

Hope this will help...

Konfiguration Macintosh 8GB Plus Settings.jpg

Konfiguration Macintosh 8GB Plus.jpg

 

Gorgonops

Moderator
Staff member
The Seagate ST225N you're setting the product ID to *is* a 21mb hard drive. (It's the drive Apple stuck in the original 20MB external box for the Mac Plus.) I've seen that recommendation to set the Product ID to that in order to get the SCSI2SD to work with Apple's unmodified formatter software for System 6 (Apple used to tie their formatter to only work with drives they sold), but if you're planning to run System 7 or higher it may not be a brilliant choice. It sure seems like what's going on here is when the Apple formatter sees that Product ID it's not bothering to query the drive for its full size and is instead just hard-coded-ly generating a 21MB format.

 

BadGoldEagle

Well-known member
Apple HD SC Setup expects a certain number of characters when it reads the drive’s firmware. If a space was missing no wonder it didn’t show up. 

Lido or Silverlining will set up the drive correctly no matter the firmware. 

 

Fizzbinn

Well-known member
No, it's more likely a MacBinary file, which Stuffit Expander will also decode.

BinHex extensions were: hqx, hcx and hex. These latter two are quite ancient, dating from around 1984-85 when Binhex was an MS BASIC program.
I stand corrected! Thanks.

 

Gorgonops

Moderator
Staff member
Lido or Silverlining will set up the drive correctly no matter the firmware. 


I always just used a hacked version of HC SC Setup; there's a simple ResEdit hack that disables the firmware signature checking. Supposedly the version on the A/UX setup disks also doesn't do signature checks and works fine for regular MacOS.

 

joshc

Well-known member
Sorry, I may repeat information that has already been discussed, but hopefully it's useful to someone...

What worked for me, with a SCSI2SD 5.1 (https://amigakit.amiga.store/product_info.php?products_id=1264)

I didn't change any settings on the General Settings page

I chose to "Load defaults" onto the card, after updating the firmware.

I then booted from my FloppyEmu, using the HD20.dsk image provided by BMOW (this is a System 6.0.8 install with Lido and other useful utilities) - Lido was the only thing that would see my card and let me format it.

Even the patched version of HD SC Setup could not see the card, with default settings or with disguising it as a SEAGATE.

So once Lido had formatted it, I was able to mount my drive, I dragged over a copy of System 6.0.8 from the FloppyEmu image I was using, and restarted the computer to boot from that. I have never seen a Mac boot so fast, it was pretty much near-instant, must have been 2-3 seconds max.

I used a 16GB Sandisk card but decided to only set up the first 2GB, so the Mac only sees 2GB. I could change this in future if I needed more but 2GB for System 6/7 is PLENTY!

Thanks for everyone for putting so much time and effort into making guides and discussing SCSI2SD set up. I tried it many many years ago and failed, but this time it seemed pretty easy, as soon as I tried Lido.

 

james_w

Well-known member
Yes, I've only ever managed to successfully format a SCSI2SD with Lido. Not sure how other people have managed to use other software such as the patched HD SC Setup. I've tried using it multiple times and it's never fully worked.

Enjoy your new faster Mac!

 
Hi there

Newbie to these forums. Been using Macs since 2000. Got about 12 different machines in various states of repair. Anyway - I'm in the process of fixing up an old LC 475 for a friend. Hard drive was dead, so I got a rev 5 SCSI2SD card adapter, which is giving me a real headache.

I've tried following the tutorial over at the Savage Taylor blog, and successfully got the LC 475 booting in his minimal version of System 7.1. I then tried his tutorial to expand that out to the full version of System 7.3.5 and then 7.5.5 using the floppy disk images you can find online, via Basilisk II - but I haven't been able to get this to work. I have managed to configure Basilisk II on my intel iMac (late 2009, OS X Sierra) to think it's an LC 475, running OS8.1, via a version that was basically already set up for exactly that. I also have a real OS8.1 CD, and have made an ISO. I have a SCSI CD-Rom, but it's a non-Apple drive.

I have also seen mention that it's possible to configure your SCSI2SD to have multiple partitions, and have one of those partitions set up as a virtual CD-ROM, and that it should be possible to DD the OS8.1 ISO on the SD card, to then insert that into the SCSI2SD adapter, boot it up and install it to the main partition of the SD Card. As I have a real OS 8.1 CD, and have access to an ISO and can use that setup quite happily in Basilisk, ideally, that's what I'd like to do with the LC 475. But I have no idea how to go about any of that. The information on the Savage Taylor blog isn't particularly clear, and neither are the instruction on the CodersRC page for the SCSI2SD. I'm at my wits end an getting nowhere fast and really need someone to guide me through it.

I have access to an old G3 iMac running OS9.2.2, and a USB floppy drive. That also has OS X Panther on it. And I have my Serra iMac too. If anyone could spare some time to give me some detailed instructions, I would be incredibly grateful.

 
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Crutch

Well-known member
You say you haven’t been able to get installing 7.3.5 and 7.5.5 from disk images using Basilisk II to work.  What goes wrong when you try it?

 
According to Steve on the Savage Taylor blog, I need to copy the minimal System 7 disk image and rename it TempDisk.img, then point Basilisk GUI toward the those two files, as well as set up a Unix Root folder, which gets shared between OS X and Basilisk. That should give me three drive icons on the Basilisk desktop - one for OS 7 drive, one for the Unix drive, and one for the Tempdisk drive. Except, with mine, Tempdisk doesn't retain it's new name - it goes back to the original name, the same as the minimal disk image of System 7.

Additionally, I placed the 19 files to install the full version of System 7.5.3 files in the Unix drive. When I tried to launch the Install smi file, Basilisk tells me the file cannot be used, and "I must copy to a Macintosh HFS or Macintosh".

So, I thought - seeing as I have a Mac OS 8.1 configuration for Basilisk which works perfectly, why can't I just use the HFV image file from that, and use DD in terminal to copy that to the SD card for SCSI2SD, instead of Steve's minimal version of System 7.1? So, I just pointed the if= part of the DD command to the HFV file from Basilisk. (along with the rest of the commands). Writing all that to the SD card went much quicker, and although the SD card failed to automatically remount as it had before, I could see all the MacOS 8.1 files under OS X. Putting the SD Card in the adapter though, and it fails to boot, just giving me the flashing question mark folder.

Dunno where I;m going wrong, and it's driving me up the wall.

 
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Realitystorm

Well-known member
Why can't I just use the HFV image file from that, and use DD in terminal to copy that to the SD card for SCSI2SD, instead of Steve's minimal version of System 7.1? So, I just pointed the if= part of the DD command to the HFV file from Basilisk. (along with the rest of the commands).
HFV files don't have the mac driver and partition table.  I discuss that on my blog http://www.savagetaylor.com/2018/05/28/setting-up-your-vintage-classic-68k-macintosh-creating-your-own-boot-able-disk-image/. I'm not sure what you mean by the "Unix root folder".   Do you mean the icon pointing to you OS X files?

 

Realitystorm

Well-known member
Since you have 8.1 working under basilisk, use that as your primary disk (boot), use mine as the secondary.   Delete the system folder off mine.  Copy the 8.1 system folder over, and run system picker to "bless it".   

 
HFV files don't have the mac driver and partition table.  I discuss that on my blog http://www.savagetaylor.com/2018/05/28/setting-up-your-vintage-classic-68k-macintosh-creating-your-own-boot-able-disk-image/. I'm not sure what you mean by the "Unix root folder".   Do you mean the icon pointing to you OS X files?
Hello! 

I was following your guide for installing the full version of system 7.5.3 but for me, Basilisk is running on a High Sierra iMac. So, when in your blog you said you should set Basilisk to use the the Windows 'My Computer' s a shared device between Windows and Basilisk, I took the OS X equivalent to meant the Unix Root option. I created a "shared" folder, and pointed Basilisk to that as the Unix Root, which creates a drive on the Basilisk desktop called Unix. Evidently that's not the way to go ;)

 

karrots

Well-known member
It sounds like your running the SMI from the share. If you copy it to a HFS formatted drive it will work.

 
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