New SSD install OsX

judojustin

macrumors newbie
Original poster
Feb 18, 2017
15
1
USA
Im gonna put in a new SSD in my mbp mid 2012. Do I will I need Osx on a usb or something or is there something in the machine that can just fetch it from the internet? I only found tutorials of people trying to back up what was already on there computer. Im not. I just want to start from scratch. that is to say I dont want any of the crap on my current hard drive on the new ssd. Only osx.
 

chscag

macrumors 68040
Feb 17, 2008
3,740
1,293
Fort Worth, Texas
Im gonna put in a new SSD in my mbp mid 2012. Do I will I need Osx on a usb or something or is there something in the machine that can just fetch it from the internet? I only found tutorials of people trying to back up what was already on there computer. Im not. I just want to start from scratch. that is to say I dont want any of the crap on my current hard drive on the new ssd. Only osx.
You're referring to a clean install. You can always do an internet install from Apple which will install the original version of OS X that came with your 2012 Mid MBP. However, unless you have a very fast connection, an internet install may take hours or all night. It's better to have a bootable USB flash drive with OS X and use it to install clean. Much faster that way.
 

judojustin

macrumors newbie
Original poster
Feb 18, 2017
15
1
USA
You're referring to a clean install. You can always do an internet install from Apple which will install the original version of OS X that came with your 2012 Mid MBP. However, unless you have a very fast connection, an internet install may take hours or all night. It's better to have a bootable USB flash drive with OS X and use it to install clean. Much faster that way.
Thanks for the speedy response. Follow up, So I installed it. Did everything in the OWC vid on YouTube. Booted it up and all I get is a folder in the center of the screen with a question mark. So I put in the CD that came with the Samsung SSD and it just spins the disc and nothing. Just a blank screen. Could it be a bad Hd ? I did put in new ram as well could it also be that?
 

Gav2k

macrumors G3
Jul 24, 2009
9,217
1,606
Thanks for the speedy response. Follow up, So I installed it. Did everything in the OWC vid on YouTube. Booted it up and all I get is a folder in the center of the screen with a question mark. So I put in the CD that came with the Samsung SSD and it just spins the disc and nothing. Just a blank screen. Could it be a bad Hd ? I did put in new ram as well could it also be that?
Did you format the drive before doing anything?
 

makinao

macrumors regular
Dec 27, 2009
248
76
The video only shows how to physically replace the drives. It only mentioned, but did not show how to prepare the drive for MacOS, or transfer the data to the new drive.
 

kiwipeso1

Suspended
Sep 17, 2001
646
167
Wellington, New Zealand
Get the install USB. Plug it in. Start up the mac. Hold option key down until it shows the disks. select the install mac USB.
Takes about half an hour after that if USB 2 disk, or no more than 20 minutes if USB 3 disk.
That is all you need.

(There are tutorials on how to do this with terminal on many websites, google is your friend).
 

an-other

macrumors 6502
Aug 12, 2011
329
115
Congratulations on the new drive. We all have to learn through our first experience. Please let us know your thoughts on your upgrade once your system is back and running.
 

Fishrrman

macrumors Core
Feb 20, 2009
19,700
6,868
OP:

Important question:
How well is the OS running on your current HDD?

IF there are no problems other than "the slowness of the drive", you could do this, quick-n-easy:
1. Get a USB3 enclosure
2. Put the SSD in the enclosure (temporarily)
3. Connect to Mac, initialize SSD
4. Download CarbonCopyCloner. CCC is FREE to download and use for the first 30 days
5. Use CCC to clone the contents of the internal HDD to the SSD. CCC will even clone over the recovery partition.
6. Now, TEST the SSD BEFORE you install it. Reboot and hold the option key until the startup manager appears, then select the external SSD and hit return.
7. Do you get a "good boot"? Does everything look as it should?
8. If so, NOW is the time to power down and "do the swap".

When done, put the old HDD into the external enclosure to serve as a bootable backup.
 

judojustin

macrumors newbie
Original poster
Feb 18, 2017
15
1
USA
So to reformat the HD I have to either A)do via USB or enclosure before installation or B) have a USB with osx connected after installation to temporarily run on?

So hypothetically,
if I were building a computer from scratch I would need another computer for the reformat process?
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
30,470
10,275
California
So to reformat the HD I have to either A)do via USB or enclosure before installation or B) have a USB with osx connected after installation to temporarily run on?

So hypothetically,
if I were building a computer from scratch I would need another computer for the reformat process?
No... newer Macs like yours have what is called Internet recovery. This is a small utility in the firmware that allows you to connect to the Internet and download the OS version that came from the factory. From there you can update to Sierra if you like.

Hold command-option-r at boot and select and login to your wifi. You should see a spinning globe while the recovery utility downloads and boot up in memory. You will then see the recovery screen. From there use Disk Utility to format the new disk to Mac OS Extended (Journaled). Then quit Disk Utility and click on reinstall OS X.
 
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judojustin

macrumors newbie
Original poster
Feb 18, 2017
15
1
USA
No... newer Macs like yours have what is called Internet recovery. This is a small utility in the firmware that allows you to connect to the Internet and download the OS version that came from the factory. From there you can update to Sierra if you like.

Hold command-option-r at boot and select and login to your wifi. You should see a spinning globe while the recovery utility downloads and boot up in memory. You will then see the recovery screen. From there use Disk Utility to format the new disk to Mac OS Extended (Journaled). Then quit Disk Utility and click on reinstall OS X.
Thanks this helped alot. Finally got it
 
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