What would you be doing? Clean Install or Upgrade?

hirtaza

macrumors member
Original poster
Apr 20, 2014
48
74
Toronto
Hey,
I was just wondering when Yosemite FINAL version gets released? what would you guys be doing? clean install or upgrade from the Macstore?:apple:
 

bradl

macrumors 601
Jun 16, 2008
4,006
11,823
Hey,
I was just wondering when Yosemite FINAL version gets released? what would you guys be doing? clean install or upgrade from the Macstore?:apple:
1. Time machine backup.
2. Clean install.
3. Migration assistant using Time Machine backup as source.

BL.
 

576316

macrumors 601
May 19, 2011
4,062
2,477
I'll probably just be doing an upgrade. I don't really want to go to the effort of doing a clean install when it's not really necessary.
 

hirtaza

macrumors member
Original poster
Apr 20, 2014
48
74
Toronto
I'll probably just be doing an upgrade. I don't really want to go to the effort of doing a clean install when it's not really necessary.
I wanted to do that too but I heard it gets pretty slow if you do an upgrade (happened to my brother's macbook when mavericks comes out)
 

ironman159

macrumors regular
Aug 30, 2008
192
0
Costa Rica
Been upgrading since my first MacBook that came with Leopard circa 2008. Nothing has slowed down. I must confess I've changed hard drives but my main image has never gone through a clean install. You'll do alright.
 

klamzi

macrumors member
Jun 13, 2014
33
0
Don't realy plan to use as main OS.
But will do a clean Install on external drive.
 

576316

macrumors 601
May 19, 2011
4,062
2,477
I wanted to do that too but I heard it gets pretty slow if you do an upgrade (happened to my brother's macbook when mavericks comes out)
I saw no evidence of things slowing down when I upgraded to Mavericks on my MacBook.
 

Nermal

Moderator
Staff member
Dec 7, 2002
18,678
1,183
New Zealand
I always clean install. It's not really required but it's a good opportunity to clean out all the stuff that I don't need anymore :p
 

mmomega

macrumors 68040
Dec 30, 2009
3,178
1,382
DFW, TX
I always clean install.

Since fast USB 3 drives, it really does not take long at all. I keep all major data on my server and externally anyway so to me it's no issue.

+ this gives me my annual clean unnecessary crap off of my computer day.
 

philipk

macrumors 6502
Jun 11, 2008
424
176
I always clean install. It's not really required but it's a good opportunity to clean out all the stuff that I don't need anymore :p
That is what I normally do. It is amazing how much free space I gain.

However, this time will be different. I did a clean install with Mavericks on my two laptops due to an issue of my own making. And I just purchased a new iMac.

So this time it will (probably) be an upgrade.
 

BrettApple

macrumors 65816
Apr 3, 2010
1,098
375
Heart of the midwest
I always clean install on my MacBook's, but we have an iMac that has been upgraded from Tiger! As in Tiger - Leopard - Snow Leopard - Lion - Mountain Lion - Mavericks - Yosemite. And it's still working just fine! I did swap it to an SSD to help with the speed once Mavericks hit, and upgraded to 4GB RAM from 2GB, which was up from the stock 1GB. :cool:

Only reason I clean install is to clear up random stuff I've forgotten about on my SSD. In the past it was only a 120GB in the optical bay, with a 750GB to complement it. But since I've moved to a 256GB model, it won't be as much of a crunch. But seeing as buggy as the stock install of Mavericks has been on my rMBP, I'm clean installing anyway.
 

bobbytomorow

macrumors 6502
Nov 10, 2007
424
22
Left Coast
Clean install for me, I always seem to run into issues with upgrades and its so easy now with fast SSD's and dual drive MacBook's. May as well start fresh eh
 

sualpine

macrumors 6502a
May 13, 2013
500
474
This is not an academic debate. The benefits of clean installs are provable, pragmatic, and necessary.

It has nothing to do with Apple, OS X, or Macs.

Any software engineer will attest to this.

See for example:

http://blogs.technet.com/b/education/archive/2009/11/04/windows-7-clean-install-vs-upgrades.aspx

Here’s a list of why I believe an upgrade is a REALLY BAD IDEA.

Some applications don’t work properly after upgrading from earlier versions of Windows.
Not all security settings migrate to the new operating system (requiring you to harden security post installation).
Exploits (i.e. viruses and spyware) migrate with the upgrade.
Upgrading carries forward performance problems that occur due to normal performance degradation.
Confusion due to inconsistent configurations can lead to an increased total cost of ownership.
Upgrading doesn’t take advantage of the opportunity to start fresh with standardized reference configurations.
The upgrade deployment process is significantly more complicated than the wipe-and-load deployment process.
The same exact issues happen with OS X, (and all software).
 

g-7

macrumors 6502
Feb 14, 2006
389
57
Poland
On my iMac internal SSD: upgrade. I don't have time to copy and reinstall everything. Also, I have never used Migration Assistant or CCC to copy old data, I don't trust those. When I do a clean install, I move all the essential stuff myself, so there is no unnecessary garbage left at all.

On my external HDD: clean install. I need a plain OS for testing, or just saving the day when something bad happens and I cannot boot from the internal drive (no, that Recovery Partition isn't the answer).
 

z06gal

macrumors 6502a
Aug 30, 2011
501
16
Upgrade. I used to do fresh installs but I honestly don't notice any difference so now I just go with upgrades :cool:
 

nefan65

macrumors 65816
Apr 15, 2009
1,345
14
I've done the last few upgrades [10.7 - 10.9] both ways; 10.7/10.8 Clean install. 10.9 upgrade. Couldn't tell the difference either way. I found no speed increases, or slow downs. I think the whole wipe and reinstall clean makes sense if you have had issues. But if things are working fine, I don't see the need.

I tend to think its the placebo affect...
 

grahamperrin

macrumors 601
Jun 8, 2007
4,946
627
Upgrade

Upgrade from Mavericks to Yosemite

… Some of my friends suggest me of doing a clean install indeed. What's your opinion on this issue?
If Yosemite is preferable: backup, then simply upgrade.

Benefits, if any, from a clean installation may be short-lived and/or negligible.

Background

Before Mac OS X, clean installation could be a drastic step within a troubleshooting routine.

Mac OS: When and Why to Perform a Clean Installation

A few years later, around the time of Snow Leopard, we find clean installation ('erase install') suggested by Apple only if there's an irreparable problem with the HFS Plus file system:

Troubleshooting Mac OS X installation from CD or DVD – Apple Support

– and from the archived (outdated) article to which that troubleshooting article refers:

… it may take some time to set up your computer after installation. You will have to configure all of your computer settings, install your third-party and iLife applications, and restore your personal files from the backup you made.

Why use this option?
  • If you've already backed up your computer, this might be a good choice if you are trying to resolve an existing issue and an Archive and Install installation didn't help.
  • This option takes up the least amount of space when the installation is completed.
  • This is a good option if you no longer need the information on the computer, and you have another computer that you would like to easily transfer stuff from ("migrate").
…
Nowadays, it's extremely rare for Apple to require or suggest a clean installation.

Mavericks Server Admin: SSH key fingerprints – a server administrator might choose to perform a clean installation.

OS X: How to erase and install – Apple Support