Circle w/slash, and no further on 7600 |
December, 09, 2002 9:14 PM |
joseph.petrick |
Could really use a hand with this one I am trying to install Jaguar on an 7600 with a XLR8 G3/500, 384MB RAM, 2 insternal SCSI hd's and the Apple CD-ROM all on the external bus. I have a Sony monitor connected through a VGA adapter. The cache is still installed, but disabled and the RAM is interleaved. Using the latest XPF I can't get it to recognize my install CD's as bootable. These are real disks, not copies? They worked on the install of Jaguar on my 8600 G4/800 fine. I proceed with the install and the machine reboots, I receive the Apple splash screen and then the dreaded circle slash. I tried using XPF in verbose mode but can't get it on the screen, the monitor doesn't want to display anything so I can track where the machine is ahnging up. Any suggestions? Thanks a ton! Joe |
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RE: Circle w/slash, and no further on 7600 |
December, 11, 2002 9:35 PM |
joseph.petrick |
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Nick- Already then, I am making some progress. I replaced the int SCSI drives to the internal bus connection and checked all termination. I added 2 more video ram chips for a total of four and put the original processor back in. My monitor now displays the open firmware and i get the error message, " No HFS volume to boot into" I have erased the target drive and initialized it with HD Speed Tools to make sure it is a HFS+ drive i think this is going to work, let you know shortly! |
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RE: Circle w/slash, and no further on 7600 |
December, 11, 2002 5:31 AM |
nick.ashton |
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SCSI bus termination is dependent on what devices you have. On really old drives there are some plug-in resistor packs that you physically have to insert or remove. Most drives now simply have a jumper, some give you the option of supplying terminator power to the SCSI bus as well. Your best bet is to access the data sheets for your drives and check the specific jumper settings for each one. Most manufacturers web sites have archives of this sort of info. Depending on the internal layout of your machine you may not have an option as to which device is at the end of the chain and therefore needs to be terminated. I would stick with using the slow SCSI bus until you get things figured out. Then you can try moving your drives back to the fast bus for better performance. Given that it doesn't curently work the slow bus/fast bus issue may not a factor at all for you. XPF works by copying BootX, the mach kernel, and extensions from the CD to the target hard disk, adding its own extensions which provide the support for old-world machines and then booting from that hard drive. Once booted it is able to run the installer program from the original CD. Theoretically you can make a customised CD bootable by adding the appropriate extensions to it but this feature of XPF is currently disabled because of changes in the way Apple have structured install CDs. An unmodified OS X CD is not directly bootable. |
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RE: Circle w/slash, and no further on 7600 |
December, 10, 2002 7:39 AM |
joseph.petrick |
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Nick- Thanks for the help, I will set the output to the display. I used Drive etup under OS 9.1 to initialize the HD No typo on the description, I have all of the internal devices running on the external bus. I did this from some suggestions from this forum. Put them back on the internal bus? When you say terminated, is that the enable term power jumper on the drives? I thought that the OS would boot using the XPF extensions then boot from the CD, that is where the OS is? Where is the OS that the CD supposed to use, if it is not bootable? Joe |
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RE: Circle w/slash, and no further on 7600 |
December, 10, 2002 7:39 AM |
joseph.petrick |
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Nick- Thanks for the help, I will set the output to the display. I used Drive etup under OS 9.1 to initialize the HD No typo on the description, I have all of the internal devices running on the external bus. I did this from some suggestions from this forum. Put them back on the internal bus? When you say terminated, is that the enable term power jumper on the drives? I thought that the OS would boot using the XPF extensions then boot from the CD, that is where the OS is? Where is the OS that the CD supposed to use, if it is not bootable? Joe |
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RE: Circle w/slash, and no further on 7600 |
December, 10, 2002 7:12 AM |
nick.ashton |
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Have you selected an output device from XPF's Open Firmware menu. You need to set this to your display so that messages will appear. OS X CD's are not directly bootable using XPF - they can only be used to install onto a hard disk. What utility did you use to format the disk onto which you are trying to install OS X? The only utilities that are likely to work are OS 9 Drive Setup or Intech Hard Disk Tools. If possible try reinitializing your target disk using Drive Setup. You say you have "2 internal SCSI hd's and the Apple CD-ROM all on the external bus" - have you swapped over the internal SCSI cable to the slow bus deliberately or was that a typo? Either way, double check that your SCSI chain is correctly terminated i.e. only the last device in the chain has termination. There are lots of existing threads in this forum dealing with similar issues. Unfortunately, in the absence of a search function, you'll just have to trawl through and see what's relevent. |