Updating os x 10 3
The slow Mac probably needs a back up and possible Disk Utility to repair the catalog structure.
Worst case, you can order a USB media from Apple - call in to the sales number for your country and ask to purchase a media instead of a download.
The information that you can get as a user is “Release Note”.It’s an official note and complete related to anything about update which is launched by the party who launch update.Release Note can you read when the update process is about to be done to give the complete information.When I try the update to Yosemite, though, I get the spinning cursor and it stays that way.I thought that maybe it was just a huge download, so I left it on for the night. I've found the Console Messages, but the only thing I see there is "This isn't a bitmap context.