Not a complete answer, but:
You do NOT have to reformat your hard drive.
You DO need full backups of everything.
You DO need to first check with their developers that all your third-party applications will run on Snow Leopard and/or that there are updates available of them. This applies particularly to printer drivers.
Snow Leopard will over-write Tiger.
I am a bit anxious not to confuse my current data storage of pictures, films, music, documents and graphics.
Be certain to have at least 2 backups, one a clone of the drive that you can boot from.
Must I fully reformat my HD...
have major backups done and set aside, before inserting my 10.6 diskette?
Not unless all your stuff is important... meaning a very good idea to Backup first.
must I uninstall certain programs before just backing up?
Mostly not a worry, some 3rd party things will likely need updating after the Install.
My iMac desktop is 6 years old, dec. 2006, Intel duocore.
If it's a core Duo & not a Core2Duo, then it'll only run in 32 bit mode.
Snow Leopard/10.6.x Requirements...
* Mac computer with an Intel processor
* 1GB of memory (I say 4GB at least, more if you can afford it)
* 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?...
It's been pulled from the online store & Apple Stores, so you have to call Apple to buy it, last I heard.
Call Apple Sales...in the US: 1-800-MY-APPLE. Or Support... 1-800-275-2273
Your Intel Mac will run Snow Leopard. If it is an older machine you may want to upgrade RAM ("memory").
Snow Leopard 10.6 Technical Requirements - http://support.apple.com/kb/SP575 - note by K Shaffer - http://discussions.apple.com/message/12921514 : "Some early Intel-based Macs can't use Snow Leopard 10.6 installers; of those, the Core Duo (not 2 duo) were suspect and had issues." - and a qualifier by "a brody" http://discussions.apple.com/message/13028822 : "I think that refers to the ones without at least 1 GB of RAM."
Macs and Software that will run with Snow Leopard (Mac OS X 10.6.x) - https://discussions.apple.com/docs/DOC-2455
A Mac OS X 10.6 Snow Leopard Application Compatibility List - http://snowleopard.wikidot.com/
One nice thing about Snow Leopard is most of your old applications should work (with an Intel Mac you already won't be running any "Classic" applications).
A complete backup is a good idea before doing any major software changes to your computer, even installing a major applicaiton. While in theory nothing bad should happen, so too in theory you should never have an accident with your car.
You do not have to erase your hard drive. Snow Leopard will install over your old system.
For comparison with the system requirements information above, get more information about your computer. Go to the Apple in the upper left corner of any window, then "About This Mac"and "More Info..." Copy and paste the information here, but omit the serial number and Hardware UUID (if present).
Hi Limnos ,
Many good points provided here! Esp. take your point about the car not working...hm
I have core2-duo 1GB 667 Mhz SDRAM hence10.6 ought to work
The direct overwrite facility is good.
Somewhat surprised to learn that f.inst. HP printers won't support anything but Mountain Lion.
Mountain Lion in turn won't take all data from a 10.4.11 environment (they seem to say - )so need to go
no higher than 10.6
thanks for the good poimts!
Hi Klaus 1 !
Appreciated especially your word about "printer drivers". Led me to check closer..
With "only" Tiger - f.inst. H-P is no longer supporting whether their original driver for my excellent (but also old!)
H-P PSC2400 series all-in-one printer will work on OS10.6. They only like the Mountain Lion + get a new printer (who is surprised?)!
So now it has to be either trial-and-error ie potential printerfreeze and scrapping - or go for a newer printer
directly and give up that part of the updating effort right away. I thought H-P were more helpful..
Well, never mind but thanks again.
You may find some of these Knowledge Base Articles useful to know about:
HP are not the only printer manufacturer! I previously used Epson (did well for 8 years), now using a Canon Pixma. Have never used a HP printer.
Hi Forum guys -
The 10.4.11 upgrade to 10.6.8 is up and running. The Snow Leopard is purring in its cage.
Apple provided the 10.6.3 diskette "overnight", further upgrade to 10.6.8 offered online and downloaded.
None of my profuse backup-stock seemed to be required, and both the Logitec musicunit and (7 years old) HP 2400 printer caught immediately. The printer indeed was "scared" up to much higher black printing speed
before I had time to ponder much over the driver - 10.6.8 appears to modify the printing mood with-
out anyone asking..and did not request another driver program.
The plain overwrite of the 10.6.3 took 44 mins. and showed no hangups.
Wish to state your Forum support "solved the problem" and gave me confidence - many thanks!
I am 78 years old and just trying to "hang in there"..seems quite possible after all..