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Trouble installing Snow Leopard

So I'm trying to upgrade from 10.5.8 to Snow Leopard but after 10/15 minutes it says the update will continue after your computer reboots. After it reboots, it's still 10.5.8 and doesn't continue installing. Can anyone help?

I've got plenty of free space and I'm on 2GB RAM.


Thanks

Posted on Jan 3, 2013 7:11 AM

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28 replies

Jan 3, 2013 1:02 PM in response to RachelFelix

I think you may need to check the RAM. Snow Leopard will be more demanding and may expose pre-existing problems.


To test the memory, get memtest and run it in single user mode, where it will test as much memory as possible, more than with the OS loaded.


You can get memtest + directions from the link below. However, ignore running it from Terminal. Instead, boot into SU Mode, Cmd-s at the startup chime. (Best to startup from a full shutdown.)


At the prompt, simply type /usr/bin/memtest all 3 -L (From this link It will be installed in /usr/bin/) Then hit return. This will run three loops of memtest and create a log in Console in Utilties.


If you want to run memtest longer, which may be advisable, since RAM errors can be very elusive, you can change the number of loops it runs by changing the number. For example, to run 8 loops you would enter /usr/bin/memtest all 8 -L.


If you want to quit the test, just hit control-c


When finished, you can just type in "reboot" and hit return.


http://osxdaily.com/2011/05/03/memtest-mac-ram-test/


Direct link for the download.


http://cdn.command-tab.com/2008/memtest_422.zip

Jan 3, 2013 10:21 PM in response to WZZZ

Mac Spes. iMAC model 5.1; 1 G ram had 10.4 with a clean installation. I tried using a 10.6 Upgrade disk (bought from Apple) this disk worked on an old mini, so I would think the disk is good.


With 10.4 the errors were this "Computer could not be upgraded". So I got out a version of 10.5 and did a reformat of the disk, installed 10.5 and did a complete software update from the apple menu.


No extra software. Tried 10.6 and after a short while the installer reads with finish installation after a restart. Restarts and the installation starts again. But when it get down to 30 minutes, the installer reads INSTALLATION FAILED. restart. I tried this 3 times. Then I thought maybe a problem with the disk or the drive, so I made a BOOTABLE USB with SNOW LEOPARD. Same thing. Check the HARD DISK with disk utilities and no problems found.


Run "memtest all 3" all pasted. Tomorrow I'll upgrade the RAM.


ANY ideas on what else I can try?


Thanks

chris

Jan 4, 2013 3:48 AM in response to RachelFelix

What part of Memtest showed you were only running 888MB? Can you open up System Profiler from  in the menubar and go to About this Mac>More Info>Hardware>Memory.


Also, open up Activity Monitor in Utilities, go to the Memory tab. What is the pie chart showing for total memory? Also, how much Free and Inactive?



Whatever memory you end up buying, make certain it is 100% Mac compatible and not of inferior quality. You may want to check with us before buying.


Message was edited by: WZZZ

Jan 4, 2013 4:26 AM in response to RachelFelix

Rachel, Memtest should have written a log when you ran it. You may find it either directly in the root folder, Macintosh HD, or whatever you have renamed it (if it's there it should appear by itself), or in Console in Utilities, perhaps in ~/Library/Logs or in /Library/Logs. Can you paste that log here.


Also, can you take a screenshot, Cmd-Shift-4, of the entire bottom part of Activity Monitor>System Memory. Use the Camera icon above to post.


User uploaded file


User uploaded file


From System Profiler


User uploaded file

Trouble installing Snow Leopard

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