10.2.5 Fails to Recognize External SCSI Bus |
April, 18, 2003 12:00 PM |
b.e.vaughan100 |
Machine stats: 7300/G4 Sonnet/800: The setup includes PCI/FireWire CD/RW burner, PCI/ATA internal drive, SCSI internal drive, and SCSI external M/O drive. All are powered on at startup. All are recognized in OS 9.1 and usable, but in 10.2.5, the external bus fails to be recognized. Cables are top-notch, and chain is actively terminated. I did see that in Apple System Profiler, the PCI/ATA card seems to treated as if it were a third SCSI bus, but all of my drives have unique id numbers. When I first set up in 10.2.1, I was able to use the external SCSI bus, but not now. Is there some limitation in number of SCSI buses that Jaguar can handle? |
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Off topic - USB/parallel printing to Epson |
April, 26, 2003 7:07 PM |
pdserv |
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Hey Burton, Sorry off topic but you're the right person from another thread so I thought I send via this thread. I read your message re getting an Epson Stylus Photo to work via USB/parallel/Gimp- print. I have an Stylus Photo 700, so about the same lineage I imagine. However, I've been unable to get it to work via gimp-print. It does work in Classic and sometimes when you print in Classic first then it'll work in OSX for a bit. Any hints?? Thanks |
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RE: 10.2.5 Fails to Recognize External SCSI Bus |
April, 26, 2003 1:11 AM |
b.e.vaughan100 |
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I am now thinking that there is a problem in timing on the external SCSI, especially with my Sonnet G4 800 accelerator board. Everything mounts very fast, but the M/O was always slow in mounting (OS 9) AppleCurio.kext was present in OS X, and the various other suggestions people made didn't help. I finally gave up on the external SCSI, and did manage to get the M/O drive to mount using a Belkin SCSI/Firewire connector box. One caveat: for the Belkin to work, set SCSI id to 0. |
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RE: 10.2.5 Fails to Recognize External SCSI Bus |
April, 21, 2003 7:09 PM |
joevt |
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OS X does not use or load drivers from disks, only from it's extensions folder (/System/Library/Extensions). OS 9 does load drivers from disks (which is what the Install OS 9 drivers option in the OS X Disk Utility is for). worldalex might be right in that you need to have a disk in the drive for OS X to recognize the drive, but it's not because it needs to load a driver from it. The external SCSI bus is controlled by an extension called AppleCuio.kext. Make sure that extension is in your OS X extensions folder. Make sure the system.log file does not list Curio related errors. Use IORegistryExplorer (from the developer tools) to make sure there is a CurioSCSIController (device name: 53c94). Your external SCSI devices should be listed connected to that. Your internal SCSI devices are connected to meshSCSIController (device name: mesh). Does your M/O drive work on the internal bus? Can you make one of your internal devices work on the external bus? |
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RE: 10.2.5 Fails to Recognize External SCSI Bus |
April, 20, 2003 8:44 PM |
worldalex |
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The problem is that in OS X like with other Unix's and Windows for that matter, their is not an API to allow post boot-up loading of a SCSI driver. This is why their will not be a SCSI probe for OS X. So try putting in a formatted MO disk into the drive before booting. The driver on the MO disk will load into memory at boot. As you probably already know, in OS 9 File Exchange would load a generic removable driver if the Mac encountered a removable drive at boot (excluding CD drives), but only if their was a disk in the drive. I believe the same is for OS X. Just a note, drivers are indeed needed to load a drive in OS 9 post boot. You probably have SCSI Probe installed, or one of a number of other extensions or control panels that scan the SCSI bus for new drives to mount. All the major formatters supply some such utility (FWB, Fifth Generations Systems, Charismac etc. . .). I include File Exchange among these though it shouldn't mount your MO post boot. Suffice it to say the SCSI Manager is not mounting your drive on its own, no way. I could be wrong, but I seriously doubt it. |
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RE: 10.2.5 Fails to Recognize External SCSI Bus |
April, 20, 2003 6:22 PM |
b.e.vaughan100 |
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Well, unless I'm missing something, one problem is that unlike FireWire, USB, and DVD/CD-R, there never seemed to be any extensions needed for my external SCSI M/O drive. This is a plug & play removable drive, that required no special driver software. In OS 9, nothing appears on the desktop until a Mac formatted M/O cartridge is inserted, so I guess the drive depends solely on the OS 9 SCSI manager (which I understand is entirely different in OS X). I am baffled that Rob has no problem with external SCSI on his very similar setup. Thanks for suggestions. -Burt |
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RE: 10.2.5 Fails to Recognize External SCSI Bus |
April, 19, 2003 11:58 AM |
rjenness |
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I have an 8500/G3 Sonnet/450. The internal SCSI bus has two hard drives and an Apple 600i CD ROM. The external SCSI bus has one drive, a Ricoh MP7060S burner, and a Zip100. I went straight to 10.2.1 from 9.2.2 with XPF and have since applied both the 10.2.4 and 10.2.5 upgrades. I've had no problems with the external SCSI bus. I agree with Jim, try reloading the extensions. Rob |
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RE: 10.2.5 Fails to Recognize External SCSI Bus |
April, 18, 2003 9:09 PM |
fixitjc |
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I had a similar problem when I upgraded to 10.2 try running XPF in OS 9 and tell it to reload the extentions that fixed my problems. Jim |
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