Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Systems and Services > OS X > Mac OS X 10.7 Lion

Reply
 
Thread Tools Search this Thread Display Modes
Old Feb 26, 2011, 02:49 AM   #1
littleasian
macrumors member
 
Join Date: Jun 2009
how to clean install 10.7?

i recently got a copy of the 10.7 dmg. how do i go about clean installing it on my macbook pro (2009)? i know for iso files you can simply burn it on a dvd with disc utility, does that work for dmg's as well?

i'd prefer not to do an upgrade installation from SL to Lion.

thanks!
littleasian is offline   0 Reply With Quote
Old Feb 26, 2011, 02:54 AM   #2
Hellhammer
Moderator
 
Hellhammer's Avatar
 
Join Date: Dec 2008
Location: Helsinki, Finland
Send a message via MSN to Hellhammer
You should not replace your main OS with Lion as it's still in very early beta stage and may not be stable and support all the apps you need. Create a partition with Disk Utility and install it there. That way you will have both, 10.6 and 10.7.
__________________
SSD Editor for AnandTech
You can also follow me in Twitter!
Hellhammer is offline   0 Reply With Quote
Old Feb 26, 2011, 03:12 AM   #3
littleasian
Thread Starter
macrumors member
 
Join Date: Jun 2009
yea i'm aware of the risks but since i usually just use safari/office 11 i think i'll be ok.
littleasian is offline   0 Reply With Quote
Old Feb 26, 2011, 03:29 AM   #4
newfoundglory
macrumors regular
 
Join Date: Nov 2007
I installed Lion on my Mid 2010 mac mini server and 2008 MBP.

The mac mini doesn't have an optical drive, so i used a spare external USB hard drive, created a few partitions (must be GUID) on it and then restored Lion dmg contents to one of those partitions (all done using Disk Utility). You can then boot the installer by holding alt/option key on startup and selecting what you just restored. If you created a few partitions on the USB HDD, you can even install Lion back to one of those partitions on the USB disk and boot of it rather than the internal hard drive of your Mac if you prefer (i didn't).

It was so easy off USB that I repeated the process on my MBP.

Lion is very stable. I'm very surprised.
newfoundglory is offline   0 Reply With Quote
Old Feb 26, 2011, 03:36 AM   #5
littleasian
Thread Starter
macrumors member
 
Join Date: Jun 2009
hrmm that sounds pretty easy but i don't have any spare external's lying around. do you have any idea how i would go about doing this with a dvd-r?
littleasian is offline   0 Reply With Quote
Old Feb 26, 2011, 03:46 AM   #6
simsaladimbamba
macrumors Core
 
simsaladimbamba's Avatar
 
Join Date: Nov 2010
Location: located
I used Disk Utility to partition my internal HDD into two partitions, one for the existing SL installation, and one for the coming Lion installation.
I then used CarbonCopyCloner to clone the DMG's contents to a USB thumbdrive with 4GB capacity and installed Mac OS X via that thumbdrive without problems.
To do a clean install, you might be able to use these steps: Clean Install of OS X 10.6 Snow Leopard
__________________
living on the moderately profane edge
simsaladimbamba is offline   0 Reply With Quote
Old Feb 26, 2011, 04:59 AM   #7
newfoundglory
macrumors regular
 
Join Date: Nov 2007
Quote:
Originally Posted by littleasian View Post
hrmm that sounds pretty easy but i don't have any spare external's lying around. do you have any idea how i would go about doing this with a dvd-r?
Not tried it personally with Lion, but it should work if you burn it to DVD with Disk Utility. Just hold C on startup.
newfoundglory is offline   0 Reply With Quote
Old Feb 26, 2011, 05:19 AM   #8
antmarobel
macrumors regular
 
Join Date: May 2009
Location: Brasília
If you wanna do a clean install:
after the language choice, click on Apple menu and chose "quit install" ( at least I think is "quit install" since in Portuguese this is the meaning...) In the following window chose Disk Utility and run it as usual if you wanna send your SL back to Himalyan! as I did). After the erase process, close Disk Utility and click in install Mac OS X!!!!
antmarobel is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Systems and Services > OS X > Mac OS X 10.7 Lion

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
thread Thread Starter Forum Replies Last Post
Will you upgrade to Lion or do a clean install? unobtainium Mac OS X 10.7 Lion 78 Oct 24, 2011 12:51 AM
Clean Install 10.7.2 help indshrty Mac OS X 10.7 Lion 3 Oct 13, 2011 10:30 AM
newbie questions about clean install sn Mac OS X 10.7 Lion 1 Jul 30, 2011 03:26 PM
Are You Installing 10.7 Dev Preview on Your Primary Machine? Ahheck01 Mac OS X 10.7 Lion 69 Jul 2, 2011 04:23 PM
How to clean install 10.6 but keep iTunes and aTV synched? mechamac Apple TV and Home Theater 2 Aug 26, 2009 11:54 PM


All times are GMT -5. The time now is 05:07 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC