Upgrading to Lion from Snow Leopard

fterh

macrumors member
Original poster
Feb 14, 2011
56
0
Hi,

I have a question regarding upgrading to Lion.

I did some research on the Internet and it seems there are 2 ways to upgrade to Lion:

1) After buying Lion off App Store, run it and it'll do its magic and once it's done and restarted - presto, Lion ready for action.

2) After buying Lion off App Store, open the package and burn the InstallESD.dmg to a DVD/USB drive/etc. and reboot from there.

So what are the differences between these two methods?

And say I want to try out Lion before buying; if I download a pirated copy of Lion, the instructions say to install via method #2 (InstallESD.dmg way), but can I install it using method #1?
 

Duff-Man

macrumors 68030
Dec 26, 2002
2,980
2
Albuquerque, NM
Duff-Man says...doing option 1 deletes the installer when it's finished, option 2 (or a combo of 1 & 2 - burn the image then run the install as in option 1) gives you a disc you can use on *your* other Mac (if you have one) without having to download again (for some bandwidth is an issue), or just for having a handy bootable disc to carry around in case of emergency. As far as your option 3 goes, nobody here should be giving any kind of advice when it comes to pirating no matter what your intent may be....oh yeah!
 

DoFoT9

macrumors P6
Jun 11, 2007
17,530
32
Singapore
Duff-Man says...doing option 1 deletes the installer when it's finished, option 2 (or a combo of 1 & 2 - burn the image then run the install as in option 1) gives you a disc you can use on *your* other Mac (if you have one) without having to download again (for some bandwidth is an issue), or just for having a handy bootable disc to carry around in case of emergency. As far as your option 3 goes, nobody here should be giving any kind of advice when it comes to pirating no matter what your intent may be....oh yeah!
Option 1 deletes the downloaded installer.app? I never had that happen to me, mind you I used the developer beta's..... :confused:
 

fterh

macrumors member
Original poster
Feb 14, 2011
56
0
Duff-Man says...doing option 1 deletes the installer when it's finished, option 2 (or a combo of 1 & 2 - burn the image then run the install as in option 1) gives you a disc you can use on *your* other Mac (if you have one) without having to download again (for some bandwidth is an issue), or just for having a handy bootable disc to carry around in case of emergency. As far as your option 3 goes, nobody here should be giving any kind of advice when it comes to pirating no matter what your intent may be....oh yeah!
Alright, thanks a lot! Another thing: It's personal preference but I always prefer clean installs of OSes. So if I want to do a clean install I need to do option #2, right? Or can I do option #1 WITH clean install?

And I have Bootcamp running Windows 7. Will upgrading/clean installing Lion preserve Bootcamp, or will it break it?
 

DoFoT9

macrumors P6
Jun 11, 2007
17,530
32
Singapore
Alright, thanks a lot! Another thing: It's personal preference but I always prefer clean installs of OSes. So if I want to do a clean install I need to do option #2, right? Or can I do option #1 WITH clean install?

And I have Bootcamp running Windows 7. Will upgrading/clean installing Lion preserve Bootcamp, or will it break it?
You do realise that all option #1 does, is create a temporary partition, copy the InstallESD.dmg to it, and boot from it.... Right?

Once the app does its thing, you are presented with the "usual" installer screen like with Snow Leopard, it gives you access to Disk Utility, restore Time Machine, Terminal, etcetc. Basically - you can reformat/etc from option #1. =
 

fterh

macrumors member
Original poster
Feb 14, 2011
56
0
You do realise that all option #1 does, is create a temporary partition, copy the InstallESD.dmg to it, and boot from it.... Right?

Once the app does its thing, you are presented with the "usual" installer screen like with Snow Leopard, it gives you access to Disk Utility, restore Time Machine, Terminal, etcetc. Basically - you can reformat/etc from option #1. =
Really? I didn't know that, thanks for clearing that up! :D

What about bootcamp? Should I expect any problems?
 

eawmp1

macrumors 601
Feb 19, 2008
4,135
8
FL
And say I want to try out Lion before buying; if I download a pirated copy of Lion, the instructions say to install via method #2 (InstallESD.dmg way), but can I install it using method #1?
Really, to save $29.99 you'd pirate it?!!! :mad: