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| External HD for SE/30 not recognized |
Posted by: Lord Refa on 2025-09-09 14:19:47
I picked up a couple of external HD in enclosures, no name brand (seriously, I could not find a name anywhere on the case!), plugged them into my working SE/30 and, nothing, no drive found using scsi probe. I also picked up 6 good drives IBM and Quantum, and plugged those into the case electronics, also have a terminator on the case, and, nothing, cannot find the drives. Are there some pins that need to be jumpered for external drives vs internal (most of these were internal drives)? I also note that my external Blusescsi works fine on this machine. Thanks! |
Posted by: mikes-macs on 2025-09-09 21:06:44
There could be a number of reasons why the disks don’t mount. There could be a SCSI ID conflict, or the drives aren’t formatted for Mac SE/30. Additionally, the volumes may be too large for a Mac SE/30.
Use FWB Hard disk Tools or SCSI Probe to see if they are attached. |
Posted by: Byrd on 2025-09-10 02:02:43
Don't trust the external jumper block on the enclosure to set SCSI ID, disconnect this and set the SCSI ID on the drive itself to say ID 2 or 3 to be safe. You can also self-terminate the drives without need for the block style external terminator. Usually easy to find the jumper settings Googling the drive model. Also check voltages on the PSU of the enclosure if within spec. |
Posted by: mikes-macs on 2025-09-10 04:28:04
One thing you have to remember is that most vintage electronics are not necessarily plug n play. There are many different configurations and also software drivers needed for devices to be able to be used on various vintage systems. By plugging in a 40 year old external drive and hoping for the best you are taking a risk for your Macintosh.
The drives inside the case could be seized for all we know. Do they actually spin?
Do some investigating inside the case without damaging anything. Jumper settings on the drive are always a good start point. This sets the SCSI ID of the device. On the SCSI BUS, you cannot have more than one device using the same SCSI ID. SCSI Termination as mentioned above is also needed.
If the hard drive(s) inside the external case are formatted for a Power Macintosh then most likely they are formatted HFS+ or Extended Format. Only Mac OS 8.1 and higher can use HFS+ formatted drives which a Mac SE/30 doesn’t support without modification. Therefore the drive must be formatted HFS Standard Format to be recognized by your Mac SE/30. Which hard drive formatting utility you use also makes a difference as well. |
Posted by: adespoton on 2025-09-18 13:35:52
Under the "without modification" disclaimer, I'll just link this in case it's of help: https://68kmla.org/bb/index.php?threads/backporting-hfs-to-mac-os-8-0-and-earlier.35742/ -- Elliot got HFS+ working on 68k 7.6.
Also, despite other people really liking SilverLining, I've had the best luck with drive formatting using FWB HD Toolkit or the patched version of Apple HD SC Setup. |
Posted by: mikes-macs on 2025-09-20 23:23:16
I wonder if Elliot was able to use an HFS+ on 68030. I was under the impression that only a 68040 or PPC Mac could use HFS+?
Which 68k disk formatting utility can make HFS+ partitions?
The only time I did this was on my Powerbook 520c external SCSI drive, but the drive had been already formatted using Mac OS 8.1 Drive Setup with HFS+ partitions using a PPC Macintosh. |
Posted by: Arbee on 2025-09-23 12:56:38
HFS+ doesn't inherently require any particular CPU, but booting from an HFS+ partition does require newer boot code in the ROMs, which generally means an '040 or PPC. If the boot partition is plain HFS you can use the known hacks to make 8.0 and 8.1 run on an '030 and format other partitions as HFS+. |
Posted by: croissantking on 2025-09-23 17:44:18
HFS+ doesn't inherently require any particular CPU, but booting from an HFS+ partition does require newer boot code in the ROMs, which generally means an '040 or PPC. If the boot partition is plain HFS you can use the known hacks to make 8.0 and 8.1 run on an '030 and format other partitions as HFS+.
I thought booting from HFS+ was PPC only. |
Posted by: Lord Refa on 2025-10-03 11:49:20
OK, got this mac to recognize the external drive, had to change the jumpers on the hard drive itself. SCSI probe "sees" the external HD, but I can't seem to mount it (an 80 meg drive, typical Apple from back in the day) Any suggestions on mounting these drives? What program would you recommend? When I try to use SCSI Probe to mount the external, I get a message that I need an 68040 to mount drives over 4 gb, which this drive it obviously not. Thanks! |
Posted by: adespoton on 2025-10-03 16:04:43
Back in the day, I had great luck with FWB HD Toolkit and its drivers, when SCSI Probe could see the drive but Apple's drivers couldn't mount it. |
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