Upgrading to Lion

[Wreckie]

Basically I have Lion installer downloaded earlier from AppStore. I am still running SL and now I am considering to upgrade it. Do I need to back up things or all programs and stuff will remain on HD when upgrading?

 

[henry72]

All your stuff including Apps and your files should remain unchanged. Backup your stuff using Time Machine is always a good idea

 

[Wreckie]

So this is not going to full format and just upgrades what is changed?

 

[Lankyman]

So this is not going to full format and just upgrades what is changed?

Lion is installed over the top of SL nothing else changes i.e. documents files etc. all remain unchanged.

 

[Parkin Pig]

Definitely perform a Time Machine backup before you install Lion. Firstly as a safety measure, and secondly because you may not like Lion - it's been a very contentious update, and you may want to change back to SL until a few issues are sorted. I installed Lion on my iMac and my MacBook Pro, then reverted back to SL on both as I found it to be very dumbed-down for an Apple product and I absolutely hate the autosave function. Of course that is only my opinion, but I would suggest you should have a contingency plan in case you don't get on with Lion.

 

[DarkVinda]

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You can do either upgrade will leave all your apps as they are unless they need Rosetta or are old apps you might have to get an update I did the update at first! But I've also done the full format n install option as had too much clutter and only run a few apps these days!

You need to decide if you can be bothered to install the apps that's what swayed it for me