Can anyone explain this ADVANCED problem?
I created a RAM disk on my Performa 6360 (running OS 9.1 136MB RAM) one day and after I rebooted the Mac was not bootable. I did the following to get it to boot, none of which worked.
1. Booted with extensions off
2. Booted with the OS 9.x, OS 8.5, OS 8.1, and TTP CD-ROMS
3. Booted with a Zip disk
Nothing worked and the Mac was not bootable. I believe I also tried clearing the PRAM and still the mac was not bootable.
The solution however was to boot from a floppy created with the OS 8.1 CD-ROM some time ago, trash the memory prefs and bang the mac was back and working.
Can anyone explain why my Mac behaved the way it did in reponse to creating the RAM disk, and why the floppy was the only solution to get it back up and running?
No mac expert (or those claiming to be experts) have been able to explain why the Mac behaved like this.
John
John
You mentioned 136MB of physical(?) RAM in the Performa, and OS 9.1 (about 55MB needed), but not the size of the RAM Disk. Was VM enabled also, and how much? RAM Disk allocation is part of the System reservation of RAM (which you can see in About This Computer after restarting). If the RAM were in excess of 80MB (I know. I know. But I have used RAM Disks as big as 300MB on my 9500, which has 1GB of RAM.) the System might not have been able to shoehorn itself in at System heap allocation time. Why no message? Possibly because the system (Start Manager and friends) hadn't reached a point where they had voices. The foregoing all happens at system test time, long before OS load time.
It is also odd that resetting PRAM did not abolish the RAM Disk, unless your backup battery is failing (at 3.3V or less in circuit). Shut Down of desktop machines is usually preceded by the warning that the contents of a RAM Disk will be lost, even though the memory allocation will be made again at the next startup. 'Persistent RAM Disk' is usually available only in PBs—which save the RAM Disk's contents to the HDD, and reload them to the RAM Disk's memory plot at Startup—for good reason. Your eventual solution perhaps holds a key, ie corrupt (and bizarrely so) Memory Preferences.
Disk Tools floppies are sometimes worth their weight in any scarce commodity that you may wish to name. Only last night I was saved by the floppy for System 7.5.3 after I had unthinkingly put a pure PPC extension into the 7.5.5 System folder on my IIci. The Mac would not find its HDD, to boot from, or to mount it when I tried to boot from a 7.5.3 CD or an external HDD with 7.6.1. When I had trashed the extension, all was sweetness and light again. Floppies one. Christians nil.
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Post Moved Can anyone explain this baffling puzz...
Post moved to Other BB Queries http://community.bt.com/t5/Other-BB-Queries/Can-anyone-explain-this-baffling-puzzle-with-BT-Total-BB...
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Here is the code.
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I have never experienced this problem before, and have no clue what is causing it.
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Can anyone explain this? ORA-01722
Hi all,
Can anyone understand this?
I have 3 database servers both running on windows 2000 advanced server, they're used by the development team. Also we have our production database.
The 3 databases are cloned from the production, so database configuration parameters are all equal. Today I've received a query from the development team to run on the production, the query is just simple like this:
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To make the isnum "safe", you would need something more like:
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John -
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Okay, I have a broad but limited understanding of all these technical terms for HDV and FCP and I am still banging my head against the wall in frustration!!
I make videos underwater for divers and the company I work for. I have just moved into the world of HDV and am using the Sony FX1 and FCP Studio.
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Can anyone verify this color problem
Importing a photoshop solid color green,(72, 182, 70), file (tif adobe98) into Aperture 3.2.3 on a lion machine. When this file gets imported to aperture the color changes dramatically. When I convert that same file to sRGB in photoshop and then import it into aperture it looks as if most or all of the color was NOT lost or hosed as the Adobe98 file was. Can anyone explain what is going on? Thanks Ireally want color management to work. david
Thank you for your help. I am glad that I am not alone with this problem. I feel it is a really huge error, but most people don't care, because they don't own a wide gamut display. If you don't see the problem you don't miss a solution.... For sure the Apple Aperture folks use Apple Displays, they can't see the problem too, if it exists outside my own Aperture installation. To verify this I did the following:
1) Fresh installation of Aperture: Trashed Aperture.app, trashed Aperture Application settings, reinstalled Aperture 3 from DVD and did the 3.3.1 update. Made a new library. It did not help!!!
2) Used my Macbook Pro to verify. The same problem!!!
How can I verify this on a Laptop display with really small gamut? This is a way to test it for you without owning a WideGamut Monitor:
Download the already known display gamut test image:
http://www.colormanagement.org/de/monitortest.html
Import it in Aperture
Open it in Photoshop independent from Aperture
Be sure that View > Onscreen Proofing in Aperture and the similar in Photoshop is OFF
Place the both application windows beside each other, as you can see the both images at once. I estimate at this time you can't see the stripes not in Aperture and not in Photoshop.
Now change the system wide display profile to "Wide Gamut RGB". If the problem resists in your system too, you will see the background stripes in Photoshop but not in Aperture.
It looks like in my screenshot here:
Left Aperture: No stripes, right Photoshop: Stripes in the second and third image.
To switch to WideGamutRGB is nearly the same as using to the CG301 Eizo profile, the difference in seen colors is not huge at my MacPro. On my MacBook Pro it is a way off, but it simulates that the Laptop display has WideGamut. The display gets the 0-255 steps in colors from the graphics card but these steps are in a much wider color space. So the LCD of the laptop gets compressed colors with the steps in the background compressed to the 0-255. The result are terrible colors but you can see the driffernece of the steps too.
I hope my explanation was understandable. If your test shows the same as mine I think we proofed a really big bug in Aperture. For me it is catastrophic, because I am a big fan of Aperture. Its workflow, its smoothness, the look and feel, the print module etc. etc. everything is nearly perfect. But not with this severe colour mangagement problem that forces some kind of sRGB for all image editing.
A note: This testimage is specially made to value the quality of monitors regarding color gamut. If you see the stripes in image 2 it is okay for AdobeRGB, if see them only in image 3 it is good for sRGB, if you see them not at all the gamut of the display is less than sRGB for the color red. Thiss tells the legend on the right side in German. To see the stripes with all displays you can switch of the blue and green channels in Photoshop.....
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