How can I uninstall OS X Yosemite and return to OS X Mavericks?

media maniac wrote:

So, when is the next update, 10.10.1

Only Apple would have any idea and I'm certain that at this point it would only be a guess on their part.

What happens if the DISK UTILITY HAS DIED? (anyone else had this problem?) I cannot access my disk utility to erase/make clone .The keychain

access is constantly going haywire- none of my passwords work to get into Disk Utility.

How do I destroy Yosemite off my system???? in this case ?

My computer came with Mavericks and is on my App account to re-downloaded and is my 'good news'.

Also should we have downloaded the X11.app and the Xcode app? I wonder if all of that contributes to the problems...

I installed Symphony AFTER I upgraded to Yosemite and --so far-- haven't hit any snags at all. (Ditto another Symphony/Yosemite user on YouTube...)

😉

Hi Robin,

I was in the same boat. I have a 2009 MacBook Pro running Mountain Lion with applications that I know will not run on Yosemite. I just purchased a new MacBook Pro and got quite a bit of fluff from Tech Support about the only option being to migrate my files. Last night, I had created a bootable backup recovery disk for my 2009 MacBook Pro and tried to recover the new MBP using disk utility in recovery mode. It of course gave me an error which I promptly dismissed. So, with nothing to lose except a trip back to the Apple store to return their $3000 piece of junk, I decided to used disk utility to erase the Macintosh HD drive. Once that finished, I clicked the restore tab and restored the Macintosh HD from last night's bootable backup. It's in process now and I'll see if it worked. If not, I'll return the very expensive paperweight until I have the massive hours of spare time Apple requires me to have in order to keep up with what they feel I should be doing with my laptop. What's interesting is Support sent me a link in which basically says you can't trust anything about an older mac, a time machine backup from one model mac to another even if the OS is the same...Great news for Apple's competitors ;-).

Anyway, sorry about ranting, but I'll post the outcome of my erase/restore-from-backup.

The main problem is: Macs are unable to boot from an OS older than what they came with. That has always been the case. So, when you say you used the "restore" tab, were you in recovery mode? That should install the newer OS which the new MBP came with and then port over your files - I know of no way that you can "restore" a newer Mac to an older OS and make it work/boot.

chopper_pilot wrote:

I just purchased a new MacBook Pro and got quite a bit of fluff from Tech Support about the only option being to migrate my files.

What is your reluctance to do just that? I suspect 99% of non-first time users have been doing exactly that for many many years now. Migration Assistant is smart enough to know a great deal about what it can and cannot migrate from older systems. I can't think of a single application that I was using with Mountain Lion that could not be upgrade to work with Yosemite. After spending $3,000 on a new Mac are you not willing to spend a few bucks more to have updated software?

I don't agree with your statement. There was a time pre-snow leopard at least when I took my old 2005 mac and was able to clone it operating system and all to my 2009 mac. It didn't update the OS, it just cloned from one machine to the other. Simple. Straightforward.

I guess I didn't answer the other part of your question. I was in recovery mode and was using my bootable backup of Mountain Lion as the source. The Macintosh HD was the destination. The only reason I purchased this mac now is that i need more memory. If i have to do an OS upgrade, I know I have several applications that don't run on Yosemite and I'll need to figure out what to do with those first. In the meantime, I'll return the $3000 paperweight from apple and after I get all my applications current and the litany of other behaviours that Apple requires of me (for example dumping all my Calendar info if I don't use 'the Cloud' which happened on the last OS upgrade) I'll buy another computer and give it another try.

Try Parallels 8 as an example. Quickbooks 2010 as another.

Oh and the issue is not money - it's time. I thought the fastest way to not break stride was to get a new computer. Now I have to upgrade at least 2 applications, then upgrade an operating system and then buy a new computer. Do you have a 9-5 job? I don't and I don't really have time to discuss this unless you're offering a solution.

So that didn't work. Now I got a circle with a slash through it instead of an apple logo. I might use the macbook as a doorstop while I order a Yosemite OS disk but I'll probably just return it and use external drives to offload some of the information on my current mac.

chopper_pilot wrote:

Try Parallels 8 as an example. Quickbooks 2010 as another.

RoaringApps says that Parallels 8 will run with Yosemite.

Quickbooks 2012 & 2014 run in Yosemite.

chopper_pilot wrote:

Do you have a 9-5 job?

Not that it's any of your business, but taking care of my wife is a 24/7 job for me.

I don't and I don't really have time to discuss this unless you're offering a solution.

I thought I did. Migrate from Time Machine as I did when I upgraded my iMac G5 Leopard to iMac i7 Mountain Lion. Took maybe an hour while I was doing several other things. But then I did have an order of magnitude more than two applications to upgrade at the time.

chopper_pilot wrote:

So that didn't work. Now I got a circle with a slash through it instead of an apple logo.

Yep, as predicted. I don't know how you were able to do that with your 2005, but it's certainly nothing I've ever been able to do.

I might use the macbook as a doorstop while I order a Yosemite OS disk

There is no Yosemite OS Disk. You will need to do an Internet Recovery by holding down <Command>-<Option>-R. That will download and re-install the OS your new MBP first shipped with.

chopper_pilot wrote:

I don't agree with your statement. There was a time pre-snow leopard at least when I took my old 2005 mac and was able to clone it operating system and all to my 2009 mac. It didn't update the OS, it just cloned from one machine to the other. Simple. Straightforward.

Unfortunately, I guess I was correct. And, like MadMacs, I do not know how you could have accomplished it with a 2005 Mac. Their builds prevent them from booting from a build earlier/older than what they came with. FYI, here is a list of Macs and their builds which shows if one Mac might be booted with more than one OS:

http://support.apple.com/en-us/HT1159

So, exactly where are you at and what do you want to try next?