Currently Being ModeratedJan 3, 2013 7:50 AM (in response to RachelFelix)
Puzzled, you say "update." It's an upgrade, not an update. How are you upgrading? If you are using the Snow Leopard install DVD, which is how you should be doing this, make sure you verify the disk and repair permissions in Disk Utility first in 10.5/Leopard before trying to install.
Currently Being ModeratedJan 3, 2013 7:52 AM (in response to RachelFelix)
Going from 10.5.8 to 10.6 is an upgrade not and update. The upgrade requires that use the Snow Loepard install DVD.
If you are using the Snow Leopard downloads, they are updates to the Snow Leopard 10.6 that is install by the DVD.
Currently Being ModeratedJan 3, 2013 8:14 AM (in response to Allan Eckert)
Yes, I mean upgrade. I bought the proper upgrade disk from Apple and can't install it. I've already verified and repaired all disk permissions, reset my RAM and tried rebooting holding down c. I don't get it.
Currently Being ModeratedJan 3, 2013 10:00 AM (in response to RachelFelix)
Try uninstalling Spotify and see if the problem changes.
While you are at it, uninstall Growl also before you test. Spotify uses Growl to notification you of the status within Spotify.
Currently Being ModeratedJan 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.
Direct link for the download.
Currently Being ModeratedJan 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?
Currently Being ModeratedJan 3, 2013 11:59 PM (in response to RachelFelix)
Currently Being ModeratedJan 4, 2013 2:54 AM (in response to RachelFelix)
Is there anything I can do about that before I spend £80 on buying 4GB?
No, you need 1 GB minimum. I have ran 10.6 with 2 GB quite successfully. 2 GB is quite inexpensive - around $20. Don't buy it from Apple, it is too dear.
Check out this site for example. It is a US site, but provides some perspective.
Currently Being ModeratedJan 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