1. check if your iMac can run Mountain Lion,
2. Purchase Mountain Lion via App Store on your Snow Leopard.
It will be downloaded to your Application folder.
3. Get an external hard drive for the new system. Ideally ThunderBolt connected as USB one will be slower.
4. Plug it in and run Mountain Lion installer and point to the external drive.
you can change between the systems by using Startup Disk in System Preferences.
Hi and thanks-- many calls to Apple kept teling me it cannot be done aqnd I am a computer wimp as well as not that knowledgeable. But now that my back is to the wall, I HAVE to come up with something. A guy at HP tech services talked to me abaout my printer and incompatibility issues to come and mentioned he used this approach in his private business-- Apple said maybe (which is better than the last 3 or 4 no- won't work) This sounds just too easy. Apparently you can select the external hard drive as the startup disk and if that day you need the Snow Leopard, just disconnect the ext- and it "automaticall"?? will start up from the internal hard drive?
If it really IS this easy,(since I believe in belts AND suspenders) i guess I need to get an external hard drive to store my whole hard drive right now in case I muck it up--not sure how to use the Time machine etc- and this way I KNOW I have a dedicated "volume" sitting there in case-- then a faster Ext. Hard drive and go for it with Mountain Lion- that leaves me with both systems 9at least theoretically and i hope realistically) available--right?
THANKS-- just sounds too easy to be true after all the Apple folks keep saying it won't work....
yes, this sounds easy and it is when done properly.
When you disconnect your external HD with ML on it your Mac will search local drives for bootable system and will boot your Snow Leopard.
You should make a backup but if you follow the installation steps onto the external hard drive you will not be affecting anything on your current internal hard drive installation.
You need to move to Windows 7, because Apple is now releasing a new OS X version annually and it's playing havoc with people's hardware and software.
Windows 7 will get support until 2020, that's 8 years of software stability, however you do need to make System Restore disks, boot disk and another on a hard drive to self restore (like TimeMachine is for OS X)
Apple has no plans to change their currrent behavior as all they care about is selling new hardware with a shiny new OS X verison on it.
If you wait to move, what will happen is you'll lose that full 8 years and will have to swtich to a newer Windows sooner
Windows 7 machines are still widely avaialble, despite Windows 8 (a failure) being pushed currently.
Running three OS X operating systems on one machine is quite a chore reserved for only seasoned computer geeks, then it's only going to last X months as the next OS X version will be released, then the next a year after that.
Another method would be to get a virtual machine software (virtualbox is free) and install Windows 7 into that to ease your transitition if you cant' spring for a Windows 7 machine, preferablly a tower that will last a long time.
Here is a method to run Snow Leopard in Parallels, however it's a unapproced hack and not for the comptuer newbie.
We have no control over Apple's OS X release cycle, nor the third party developers who make their own decisions what to support.
Our only choice as users to stop using both products and seek software/hardware stability.
Wow- I went back and checked the email from TT and sure enough- it says from OS 10.6 and I thought it said no longer supports..... I need to check what the stock compnay said but I bet they are in lockstep with TT since they offer it to their clients. Ah, that means I have at least a small amount of breathing room. Thank you for pointing this out, lets me relax a little. Now to get what I need to see if I can make things work-I really need to continue using the drawing software that is dead in 10.7 on.
Hmmm. I have been totally happy with much older Mac OSs--but when the real world steps in I have little choice but to try to keep up. I honestly never gave Windows a second thought- presuming I had to go PC. My experiences with PCs have been less than stellar, but this situation is fast becoming untenable. Something else to think about - if for nothing more than having a inexpensive PC solely for the TT aspect--in honesty I think that convoluted solution may be les expensive than... Ah yes, something else to think about-- thank you and I will think on it. I don't need all the bells and whistles that are showing up-and which mandate chaning things that are perfectly serviceable the way they are/until they become were and one is forced to make undesired but required changes. Once again- thank you.
I really need to continue using the drawing software that is dead in 10.7 on.
That's why I triple-boot. Use SL for computing and the iOSified OSs for only playing around and testing. I have no use for iOS devices or cloudy stuff. When the day comes I can't do that with my machines, might be the day I give it up.
Aha- another player just entered the scene--- Apple is giving me a 2 TB Time Capsule (long story). Since I know nothing about these--can it be used as one of the (2) external Hard Drives I am going to need (one for a copy of my current system in toto in case I manage to botch things and one to house Mountain Lion) ? On that topic- no one at Apple would make any suggestions as to what External hard Drive manufacturers to look at- any ideas? My Apple Care on this iMac runs out in 50 days, so if I am going to experiment, I want to do it now (even though they have already told me they do not support this attempt to access both OS 10.6.8 and 10.8) so that -if I foul everything up they have to talk to me- they may not help if I really destroy anything but they'll at least have to tell me that as a covered "service".
I am getting closer to trying this out. Thanks to you all