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| Author | 7.6.1 on a PM 6100 - startup problem (Read 25683 times) | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Beavix
16 MB  Posts: 18 
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on: March 27, 2011, 22:20
Hello, My Power Mac 6100/60 AV refuses to run 7.6.1. I installed a brand new system from a CD and everything went fine during the installation, but as soon as I restarted I got this white window and the system frozen with no mouse pointer: http://dl.dropbox.com/u/5417175/6100-freeze.jpg Shift-booting works, so I thought it's an extension problem. I disabled everything in the Extensions Manager - still not working. What else I should try? Is there a known incompatibility between 6100 and Mac OS 7.6.1? (7.5.3 and 8.1 work fine on that computer). |
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Dimitris1980
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32 MB Posts: 39
Reply #1 on: March 28, 2011, 10:00
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i had the same problem with mac os 7.6 & 7.6.1. But recently i tried to install mac os 7.6 again from an 'apple system software recovery cd' i think and now it works perfect. The truth is that i tried to install mac os 7.6 from the same cd several times and i had the same problem.
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Beavix
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16 MB Posts: 18
Reply #2 on: March 28, 2011, 12:48
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Today I updated the 7.5.5 installation to 7.6, thinking maybe It works that way. It doesn't. I had a 7.6.1 system running fine on that computer but I can't remember what I did to install it.
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Beavix
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16 MB Posts: 18
Reply #3 on: March 28, 2011, 18:11
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I found a System Recovery CD containing all versions of Mac OS. It even has a directory with systems for the PowerMac 6100, including 7.6.1. It still doesn't work! This is driving me crazy.
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dpaanlka
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1024 MB Posts: 1646
Reply #4 on: March 29, 2011, 02:24
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There's a good chance that something is wrong with one of the hardware components of your 6100. If the freezing only happens when extensions are loaded, and we're talking only about extensions that come with Mac OS 7.6.1 (ie a clean install), then it might be an expansion card or some part of your motherboard that's only activated by an extension. The 6100 is more than capable of running 7.6.1 as many people on this site do all the time. It might even be a bad stick of memory that's only encountering the error when many things are loaded into RAM (like when you load extensions as opposed to booting with extensions disabled). You should try stripping your 6100 down to the bare minimum needed to run -- a hard drive, a small amount of memory, a monitor attached to the internal video (not a video card), an Apple-branded keyboard and an Apple-branded mouse. See if you have better luck booting with extensions then. If so, reconnect each piece of hardware until you discover the culprit.
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Beavix
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16 MB Posts: 18
Reply #5 on: March 29, 2011, 18:24
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I checked the connections inside the computer, took off the RAM (2 x 32 MB), the CD-ROM unit and the Ethernet transceiver, it still doesn't work. I don't think it's a hardware problem since Mac OS 8.1 on another partitition works fine, and also 7.5.5 which was installed before. I erased the hard drive before I installed 7.6.1 and 8.1. The fact that Dimitris1980 had the same problem makes me think there is an incompatibility between certain versions of the 6100 and 7.6.1. Dimitris is from Greece, I'm from Romania. My 6100 was bought from Germany, and I suspect his computer was bought from Europe too (am I right, Dimitris?). Who knows, maybe the 6100s sold in Europe have something different?
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Dimitris1980
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32 MB Posts: 39
Reply #6 on: March 30, 2011, 07:01
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I have the performa 6116 which is like powermac 6100 but i bought it from USA last year (used). I had the same problem with you and i tried several things like you. For instance i had system 7.5.5, Mac Os 8.1, Mac Os 9.04 and i never had problem with these. Only with Mac Os 7.6 was the problem but recently when i installed it...wow it worked! I have made two partitions, one for os 7.6 and the other for os 9 because i have lot of burned cds that os 7.6 cannot read. My configuration is this: - Performa 6116 at 60 mhz with sonnet nubus g3 at 500 Mhz installed - 136 mb ram - 4,2 gb hard disk - Pds video card with 1mb ram - 4x cd rom drive (i bought recently 24x cd rom drive but i haven't installed it yet) - Roland MT32 device - ADB Extended Keyboard M3501
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Dimitris1980
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32 MB Posts: 39
Reply #7 on: March 30, 2011, 07:20
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One note: i have installed Mac Os 7.6 (not 7.6.1).
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wove
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1024 MB Posts: 1363
Reply #8 on: March 30, 2011, 19:01
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I tend to go with Dan on this and suspect a hardware problem. The only thing I can think of might be the drive encoding and dealing with international languages. Apple changed to unicode for drive encoding somewhere around OS 8, prior to that encoding had been ascii I believe. I would try and reformat the drive and install the drivers for the drive that are included on the installer CD. This would simply ensure that the drive and the OS are working with the same encoding. In honesty though I am just speculating on this. The 6100 should generally have no trouble with 7.6 or 7.6.1. However at that time period internationization was handled much differently than it is currently, so mixing say an English format drive with a French localized OS might create issues. Good luck in your efforts. bill
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Beavix
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16 MB Posts: 18
Reply #9 on: March 30, 2011, 22:40
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Problem solved!!  Here's what I did. I booted from an Apple Software Restore CD and initialized the hard drive (again) using Drive Setup 1.7.3. This time I only made a single partition. Then I updated the disk driver. This is something I don't remember doing before, at least not using Drive Setup 1.7.3. And finally I installed 7.6 and 7.6.1 from the same Apple Software Restore CD. What did the trick? The single partition? Updating the disk drivers? Both?
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dpaanlka
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1024 MB Posts: 1646
Reply #10 on: March 31, 2011, 02:31
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Quote from: "Beavix" Problem solved!! Well, I'm perplexed, but I suppose if had to choose from one of those options, I would choose the updating of the disk drivers. I never heard of that causing any such problem before, but maybe... it certainly isn't the mere act of having multiple partitions - there are plenty of multi-partitioned System 7 machines out there.
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Beavix
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16 MB Posts: 18
Reply #11 on: March 31, 2011, 08:20
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The idea of using Drive Setup 1.7.3 to update the disk driver came to me after reading this tech note: http://support.apple.com/kb/DL1249?viewlocale=en_US Mac OS 7.6 discs have an earlier version of Drive Setup (1.2.2) so it's possible 1.7.3 did something different to the disk.
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24bit
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64 MB Posts: 91
Reply #12 on: April 03, 2011, 18:21
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Hi Beavix, some default 7.6 installations give you the A/ROSE extension. That one always prevented my 7100 (or SheepShaver) from booting and still does, if I made a new install and forgot to delete it from Extensions folder. From Wikipedia, the free encyclopedia: A/ROSE (the Apple Real-time Operating System Environment) was a small embedded operating system which ran on Apple Computer's Macintosh Coprocessor Platform, an expansion card for the Apple Macintosh. The idea was to offer a single "overdesigned" hardware platform on which 3rd party vendors could build practically any product, reducing the otherwise heavy workload of developing a NuBus-based expansion card. However, the MCP cards were fairly expensive, limiting the appeal of the concept. A/ROSE saw very little use, apparently limited solely to Apple's own networking cards for serial I/O, Ethernet, TokenRing and Twinax.
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