How to upgrade imac os from 10.4.11 to 10.5 or later?

my iMAC OS is 10.4.11 - I want to sync my iphone with my iMAC, but when I try to download the latest iTunes, it says I need 10.5. How to do I get the OS upgrade and how will the upgrade effect my applications and data?

iMac, Mac OS X (10.4.11)

Posted on Jan 30, 2012 12:42 PM

Reply
4 replies

Jan 30, 2012 1:12 PM in response to UncleNich

Leopard requirements/10.5.x...


* Mac computer with an Intel, PowerPC G5, or PowerPC G4 (867MHz or faster) processor


minimum system requirements


* 512MB of memory (I say 1.5GB for PPC at least, 2-3GB minimum for IntelMacs)

* DVD drive for installation

* 9GB of available disk space (I say 30GB at least)

Trouble is Apple no longer sells it, check eBay & such for the Retail version, not the Gray Discs...

http://www.ebay.com/sch/i.html?_nkw=mac+os+x+leopard+retail+10.5

List of Applications Not Compatible with Leopard...

http://guides.macrumors.com/List:Applications_Not_Compatible_with_Leopard


Snow Leopard/10.6.x Requirements...


General requirements

* Mac computer with an Intel processor

* 1GB of memory (I say 2GB at least)

* 5GB of available disk space (I say 30GB at least)

* DVD drive for installation

* Some features require a compatible Internet service provider; fees may apply.

* Some features require Apple’s MobileMe service; fees and terms apply.


Which apps work with Mac OS X 10.6?...


http://snowleopard.wikidot.com/

It looks like they might still have it...


http://store.apple.com/us/product/MC573Z/A?fnode=MTY1NDAzOA


If it's a Core Duo & not a Core2Duo, then it'll only run in 32 bit mode.

Jan 30, 2012 5:07 PM in response to UncleNich

Mac OS X 10.5 Leopard installation system requirements

http://support.apple.com/kb/TA24950


Leopard is no longer available at the Apple Store but may be available by calling Apple Phone Sales @ 1-800-MY-APPLE (1-800-692-7753).


If you can't obtain a retail install DVD from Apple, look on eBay or Google the installer part numbers to possibly find at an on-line store. Here's what to look for:


MB427Z/A Leopard 10.5.1 install DVD

MB576Z/A Leopard 10.5.4 install DVD

MB021Z/A Leopard 10.5.6 install DVD (single user)

MB022Z/A Leopard 10.5.6 install DVD (5-user family pack)


Installing Mac OS X 10.5 Leopard

http://support.apple.com/kb/HT1544


Mac OS X 10.5 Leopard Installation and Setup Guide

http://manuals.info.apple.com/en/leopard_install-setup.pdf


After you install the base 10.5, download & install the 10.5.8 combo update at http://support.apple.com/downloads/Mac_OS_X_10_5_8_Combo_Update


The DVD should look like this

User uploaded file


Caution - Leopard does not support classic mode. So, if you currently open OS 9 apps in classic mode, you won't be able to do this if you upgrade to Leopard.


 Cheers, Tom 😉

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

How to upgrade imac os from 10.4.11 to 10.5 or later?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.