Quadra 605 CD Boot?

[zarky]

Ive got a beat up Quadra 605 that has a dead HDD and a presumed dead FDD. The FDD functions mechanically, and tries to seek, but fails to boot from any floppy i make for it. (just get the ? or X folder)
So I'm trying to see if i can boot it off of a CD via SCSI. I think it's possible but I haven't had any success with my third party SCSD cd drives.
I have tried 7.1 Golden master, 7.5.3, and 8.1 Retail images, burned both to 700mb sony CD-R, and TDK CD-RW.
I've tried booting with everything but the SCSI CD unplugged, ive tried passing the CMD+OPT+SHIFT
DEL commands, I've tried several SCSI IDs (0, 3, 6, etc)
All I get is the ? folder.

Am I missing something? Or can this machine not boot from CD?

 

[History_SE30_Dude]

I don't think that era was CD boot capable. Though if you have a Floppy Emu that would work or pull any other floppy drive from another Mac.

 

[zarky]

I don't think that era was CD boot capable. Though if you have a Floppy Emu that would work or pull any other floppy drive from another Mac.

I have neither another mac floppy drive nor a floppy emu.

 

[zarky]

I have an idea involving a 3.5" MO drive. Will report back later.

 

[History_SE30_Dude]

For the floppy drive it may need a good cleaning. There are lots of videos on how to clean, you could also give a floppy drive cleaning disk a try first. They are easiest found on ebay and might still be available on amazon.

 

[Forrest]

Since your HD is dead, you should replace it with a ZuluSCSI or a BlueSCSI Device. Install a bootable drive image on your SD card, plug it into your device and your all set.

 

[zarky]

I had cleaned the FDD before, but i tested the floppy detect switch and it was not making contact. cleaned it with alcohol and its now booting off floppies!
And i kind of don't want to have to buy anything for this thing. I'm just trying to make what i have around work, and its fun. I have a 1gb scsi hard drive around here somewhere...

 

[Phipli]

I don't think that era was CD boot capable. Though if you have a Floppy Emu that would work or pull any other floppy drive from another Mac.

All SCSI Macs will boot from a CD.

700mb sony CD-R, and TDK CD-RW.

What CD ROM Drive are you using? Almost none work with CDRWs and some don't recognise 700MB disks. Old drives can be picky about CDRs too.

What method are you using to burn it?

The internet is full of non-working bootable CD images, I put some that should work here :

https://macintoshgarden.org/apps/mac-os-installers-3rd-party-cd-rom-drives

Burn a 7.5.3 disk using ImgBurn for Windows at the minimum burn speed directly from the image. Or on Mac OS, burn my right clicking on the image and selecting the option to burn the image.

 

[zarky]

Burned that exact image from macOS. My scsi drive of choice is a yamaha CDRW burner. I'll mess with it later I'm done for tonight.

 

[Realitystorm]

Burned that exact image from macOS. My scsi drive of choice is a yamaha CDRW burner. I'll mess with it later I'm done for tonight.

Is the Yamaha the external drive you have attached? I thought there was an issue that Apple computers would only boot from Apple branded CD-ROM drives? Have you tried @Phipli 's 7.6.1 image? https://68kmla.org/bb/index.php?threads/booting-a-mac-with-a-3rd-party-cd-rom-drive.46540/

 

[zarky]

yeah the yamaha is the one im trying to boot from. I'll try that 7.6 image, though i had tried the 7.5.3 one also mentioned there with no luck. I think these are the same ones Phipli had mentioned in a previous comment. I'll give it a shot though, since the floppy drive quit working again. This whole system needs a recapping, that's for sure. I just wanted to see how far i could get before i really dug in and started doing some hard work. I haven't messed with macs this old in a long time, not since my days on applefritter. Oldest i had since then was a PPC clone.

 

[History_SE30_Dude]

Great work on the drive! Since you can boot from floppies you can create a floppy using Gamba's SuperBooter and it has a CD-ROM driver it may let at least use the drive to install the System from the drive if you can't get it to boot from the CD. The Floppy disk image is at The Repository and The Garden.

 

[zarky]

I got CD boot working! both the yamaha and ricoh CDRW drives were not working, so on a hunch i pulled out my Pioneer DRM-6324x 6 disc scsi cd changer and it worked first shot. Now i'm just trying to find a version of macos that will let me install to the MO drive i have since i don't have a working scsi hard drive (the 1gb HP one i found is a dud)
More experimentation ho!

 

[danny.gonzalez.0861@gmai]

I got CD boot working! both the yamaha and ricoh CDRW drives were not working, so on a hunch i pulled out my Pioneer DRM-6324x 6 disc scsi cd changer and it worked first shot. Now i'm just trying to find a version of macos that will let me install to the MO drive i have since i don't have a working scsi hard drive (the 1gb HP one i found is a dud)
More experimentation ho!

View attachment 71846 View attachment 71847

That CD-R changer is BEAUTIFUL!!! Didn't know they made them for computers. Reminds me of my first car! Had one in the truck full of disks. Great memories!

Glad you were able to get your MAC to boot off of it

 

[Arbee]

Cool! I had the Pioneer audio version of that changer, used the same cartridges.

 

[zarky]

Yup ive got two of these suckers and a matching hi-fi unit.
Got it to boot but i can't get the thing to see my MO drive even when i set it to fixed disk mode. Guess i'm going to have to get a bluescsi finally. Lame. Maybe i'll do what i did before and put a 10krpm server scsi drive in this like i did with my clone mac.

Is there a way to load extensions from a macos CD install environment?

 

[Phipli]

Yup ive got two of these suckers and a matching hi-fi unit.
Got it to boot but i can't get the thing to see my MO drive even when i set it to fixed disk mode. Guess i'm going to have to get a bluescsi finally. Lame. Maybe i'll do what i did before and put a 10krpm server scsi drive in this like i did with my clone mac.

What have you formatted the MO with?

Is there a way to load extensions from a macos CD install environment?

How do you mean?

 

[zarky]

I dont remember, but it wont even see the drive at all, no matter how i mess with my scsi jumpers.

re: extensions, is there a way i can load third party extensions within liveCD install environment? not that it really matters, but i am now curious.

 

[Phipli]

I dont remember, but it wont even see the drive at all, no matter how i mess with my scsi jumpers.

But where are you looking? If it isn't formatted it won't show on the desktop.

re: extensions, is there a way i can load third party extensions within liveCD install environment? not that it really matters, but i am now curious.

Not... Reasonably. There is a hack... But it isn't really what you're meant to do.

The short answer is no, you make a boot disk that includes the drivers you need.

But a correctly formatted MO bootable disk doesn't need a driver, it will load the driver on the disk if it is inserted before boot, even if you're booting from another disk. It's a trick I use to install CD drivers from a CD or zip drivers from a Zip.

 

[zarky]

i know it wont show up on the desktop unformatted, but it wont even show up in the scsi disk tool and it's not prompting about a disk it can't read. I'll see if i can figure out a way to get one formatted on a classic mac system, but i'm not so concerned about it. just want to see if i can do it, would be fun to have different operating systems on different disk.