I had wondered about this same question, so , I created a usb thumbdrive
with the mountain lion installer and OS utilities on it. I used Lion Disk
Maker for this. I got the ML installer from the app store on my purchases
page.
Then, I booted from the USB drive, and using the OS utilities there, erased
the Mac HD and did the ML reinstall from the USB installer.
It worked very nicely, and I felt a little safer working off The USB drive,
than from the Mac HD recovery partition, which as you say, is erased along
with the erasure of the Mac Hard Disk.
Phew, hope that made some sense.
----- Original Message -----
From: "John Panarese" <[email protected]>
To: <[email protected]>
Sent: Friday, January 11, 2013 4:50 PM
Subject: Re: A somewhat geeky question about partitioning the internal hard
drive
You would need to erase the entire partition first. Then, partition the
drive with 2 partitions. When you erase the drive, the recovery HD is
erased as well. However, when you install the OS on each partition, it will
create a new recovery partition.
Note that if you got that Mac with Mountain Lion, you will not be able to
install Lion on it. You cannot install a previous version of the OS than
what initially came with the Mac.
Take Care
John D. Panarese
Director
Mac for the Blind
Tel, (631) 724-4479
Email, [email protected]
Website, http://www.macfortheblind.com
APPLE CERTIFIED SUPPORT PROFESSIONAL FOR MAC OSX LION
AUTHORIZED APPLE STORE BUSINESS AFFILIATE
MAC and iOS VOICEOVER TRAINING AND SUPPORT
On Jan 11, 2013, at 5:52 AM, Krister Ekstrom <[email protected]>
wrote:
Hello folks.
I have a 21 inch Imac running Mountain lion. Now i want to repartition the
internal hard drive because i've just baught Pro tools and it doesn't play
well with Voiceover under ML. I take it i have to erase everything and
reformat my internal drive and somehow make both partitions bootable, one
with ML and one with Lion and what i wonder is what happens with the
recovery pratition when i erase and partition the drive? How do i go about
reformating so that everything is done right?
/Krister
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