Upgrade straight from OSX Leopard to Lion?

[imacipad]

Quite frankly, anyone who supports this limited upgrade option by Apple is an idiot. It;s fine for those with access to broadband, but a lot of countries around the world don't have good broadband network, and many that do charge horrendously for bandwidth. Plus users should not be forced to upgrade to SL if they are still running L, just to get app store access - heck, SL has only been around a short time, and L is still working fine for many uses. Looks like some users will have no choice but to download an ISO from the darknet...

 

[eddieeckhardt]

I tested the install on 10.5.8 (leopard) successfully. However, if direct from Leopard, you will need to erase your HDD and install Lion fresh.. otherwise upgrade to SL first (the retail version.. not the OEM)

First expand and burn the content of the .app to a dvd (.app or .dmg will not work during boot obviously)

Second, press and hold C immediately upon booting and choose erase disk at the utility menu.

Third, install Lion. That's it.

 

[LABachlr]

I tested the install on 10.5.8 (leopard) successfully. However, if direct from Leopard, you will need to erase your HDD and install Lion fresh.. otherwise upgrade to SL first (the retail version.. not the OEM)

First expand and burn the content of the .app to a dvd (.app or .dmg will not work during boot obviously)

Second, press and hold C immediately upon booting and choose erase disk at the utility menu.

Third, install Lion. That's it.

I just bought Lion and burned it to DVD via this method:

http://lifehacker.com/5823096/how-to-burn-your-own-lion-install-dvd-or-flash-drive

I successfully upgraded from Snow Leopard to Leopard via this DVD. Now I'd like to update my older system running Leopard directly to Lion. So you're saying that I'm going to have to do the following?

1. Backup data via Time Machine
2. Boot from the Lion DVD by holding down the C button immediately upon starting the computer with the DVD in it
3. Once booted from it, go to Disk Utility and erase the disk
4. Install Lion on erased disk
5. Import data and settings from the Time Machine backup using migration assistant
6. Done

Is that right? Am I missing anything?

So I can't boot from the DVD and upgrade directly from Leopard to Lion? I have to do a clean install of Lion on to the disk after I erase it?

 

[Slysandrou]

10.5 upgrade

hi folks
Ok I'm not an expert. my main concern about upgrading to snow Leopard is the gut who had this mac book pro seemed to have lost some of the registration details and licence numbers for the software I have on the machine. when installing with products like Adobe need to be re installed or re registered, as I fear risk loosing them!

Thanks Steve

 

[talmy]

hi folks
Ok I'm not an expert. my main concern about upgrading to snow Leopard is the gut who had this mac book pro seemed to have lost some of the registration details and licence numbers for the software I have on the machine. when installing with products like Adobe need to be re installed or re registered, as I fear risk loosing them!

Thanks Steve

My experience was that I didn't have to reregister anything, and that includes Adobe CS5, Microsoft Office 2011, Parallels, and a bunch of smaller apps. Be more concerned that you have software that might use Rosetta (not in Lion) or otherwise don't work in Lion without paid upgrades. I had several of those.

 

[Slysandrou]

My experience was that I didn't have to reregister anything, and that includes Adobe CS5, Microsoft Office 2011, Parallels, and a bunch of smaller apps. Be more concerned that you have software that might use Rosetta (not in Lion) or otherwise don't work in Lion without paid upgrades. I had several of those.

Thanks for the advice, I'm not familiar with rosetta, but from a quick search i can see it is a bolt on software. I have a mac book pro, and only really use adobe and ms office so hope that this will be ok.

Cheers
Steve

 

[techmonkey]

This thread has me confused. Can you in fact do a clean install of Lion from Leopard?

 

[talmy]

You can do a clean install of Lion. "From Leopard" doesn't matter for a clean install, which wipes out whatever might be there.

For the lowest upgrade cost you need to borrow a system with Snow Leopard, go to the App Store and buy Lion. Then you extract the Lion image from the downloaded package and burn it to a DVD. You then boot the DVD on the system you want to do the clean install on, wipe the disk, and do the install.

There are instructions on the web on how to extract the Lion image, and there is certainly a link to it earlier in this thread.

 

[techmonkey]

You can do a clean install of Lion. "From Leopard" doesn't matter for a clean install, which wipes out whatever might be there.

For the lowest upgrade cost you need to borrow a system with Snow Leopard, go to the App Store and buy Lion. Then you extract the Lion image from the downloaded package and burn it to a DVD. You then boot the DVD on the system you want to do the clean install on, wipe the disk, and do the install.

There are instructions on the web on how to extract the Lion image, and there is certainly a link to it earlier in this thread.

Yes, I plan on extracting the Lion install to a flash drive and doing a clean install, overwriting my Leopard install. I also have Win7 installed on a Boot Camp partition. Will that be untouched an will I be able to use it after installing Lion? I also would like to resize my OSX partition so I can increase my Bootcamp partition. Should this be done before installing Lion?