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Apple Computing Products:
Running Windows on your Mac
OS9.1 Checksum
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<blockquote data-quote="g4n00b" data-source="post: 15847"><p><strong>Fixed</strong></p><p></p><p>Thanks to Google + Internet, and then MacFixItForums and Appletechs for the answer. In case anyone else has this problem, and happens to find this post through a search. The problem may be corrupt data in your Mac's PRAM. Flash the Mac PRAM by retarting while holding the keys :</p><p></p><p>COMMAND(Apple Key) + OPTION + P + R</p><p></p><p>upon restarting your Mac. You will see a flash/flicker of the screen before the Mac logo appears, and then the the Startup Beep/Sound again, at which point you can release the keys. I downloaded the OS9.1 updater again (this may not be necessary) and this time no checksum nor Installation Tome Error. The Update ran perfect.</p><p></p><p>Although I have not tried this, apparently you can "deep reset" the NVRAM and PRAM by using OPEN FIRMWARE upon restart with the keystroke combo:</p><p></p><p>COMMAND + OPTION + O + F</p><p></p><p>and then issuing a:</p><p></p><p>#1) reset-nvram</p><p>-then-</p><p>#2) reset-all</p><p></p><p>The site says dont screw around issuing random OPEN FIRMEWARE commands if you don't know what you are doing, or you may F up your hardware. The above two (2) commands are supposed to be safe but other than that exercise caution.</p><p></p><p>See the following links:</p><p></p><p><a href="http://www.macfixitforums.com/php/showflat.php?Cat=&Board=OS92&Number=561096&page=0&view=collapsed&sb=5&o=&fpart=1" target="_blank">Free Software Downloads and Reviews for Windows, Android, Mac, and iOS – CNET Download</a></p><p>-and-</p><p>tp://www.appletechs.com/archives/00000043.html (outdated link removed)</p><p></p><p>Good Luck</p></blockquote><p></p>
[QUOTE="g4n00b, post: 15847"] [B]Fixed[/B] Thanks to Google + Internet, and then MacFixItForums and Appletechs for the answer. In case anyone else has this problem, and happens to find this post through a search. The problem may be corrupt data in your Mac's PRAM. Flash the Mac PRAM by retarting while holding the keys : COMMAND(Apple Key) + OPTION + P + R upon restarting your Mac. You will see a flash/flicker of the screen before the Mac logo appears, and then the the Startup Beep/Sound again, at which point you can release the keys. I downloaded the OS9.1 updater again (this may not be necessary) and this time no checksum nor Installation Tome Error. The Update ran perfect. Although I have not tried this, apparently you can "deep reset" the NVRAM and PRAM by using OPEN FIRMWARE upon restart with the keystroke combo: COMMAND + OPTION + O + F and then issuing a: #1) reset-nvram -then- #2) reset-all The site says dont screw around issuing random OPEN FIRMEWARE commands if you don't know what you are doing, or you may F up your hardware. The above two (2) commands are supposed to be safe but other than that exercise caution. See the following links: [URL="http://www.macfixitforums.com/php/showflat.php?Cat=&Board=OS92&Number=561096&page=0&view=collapsed&sb=5&o=&fpart=1"]Free Software Downloads and Reviews for Windows, Android, Mac, and iOS – CNET Download[/URL] -and- tp://www.appletechs.com/archives/00000043.html (outdated link removed) Good Luck [/QUOTE]
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Apple Computing Products:
Running Windows on your Mac
OS9.1 Checksum
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