10.10.2 Combo update "can't be installed on this disk"

osxupdcombo10.10.2.dmg with md5 6ed8811a39f1526381466e545d1c40e8 doesn't work on my wife's MacBook Air with 10.10.1 (14B25). I get the same error as in the initial description.

I'm trying the normal updater next (which I wanted to prevent because we are on a slow Internet link right now).

Topher Kessler, who used to be c|net’s Apple tech reporter, has started his own website dedicated to troubleshooting Macs and OS X. He has posted an article on how to force the 10.10.2 updaters to install. Below is the link...

http://www.macissues.com/2015/01/28/how-to-force-os-x-10-10-2-to-install-on-your -mac/

The BIG caveat though is that disabling the version check routine will result in the update installing over ANY version of OS X. Imagine what would happen if you installed the Yosemite combo update over a running Mavericks installation. I don’t even want to think about it. So he warns to make absolutely sure you are installing over 10.10.0 or 10.10.1.

There *really* should be file checksums on the Combo download page (the date is not good enough) so we can easily check if we already have the correct version or not. People using the Combo updates often try to prevent many large downloads.

So, yet another Apple bug. They are getting as careless as Microsoft. A pity they couldn't divert some of that $18 billion profit into shipping stuff that actually works (remember when you used to do that, Apple?).

--Tim

hmmm.... I thought it was because I was on the 10.10.2 beta. I'm guessing this may be a one off issue and next time it won't matter, but maybe they want to force incremental updates through the app store now . . .

to force it:

http://www.macissues.com/2015/01/28/how-to-force-os-x-10-10-2-to-install-on-your -mac/#more-2888

I found no need to force anything. Just download the Combo update and install.

Pete

It's pretty clear Apple has now re-released this Update.

Original 10.10.2 Combo Update released on the 27th of January was

http://support.apple.com/downloads/DL1786/en_US/osxupdcombo10.10.2.dmg

Name: osxupdcombo10.10.2.dmg

Size: 840,280,237 bytes (840.3 MB on disk)

MD5: 6ed8811a39f1526381466e545d1c40e8

http://support.apple.com/kb/DL1786 -- -- This page shows the original Post Date of 27 Jan

Version that exists on that same page today is:

http://support.apple.com/downloads/DL1786/en_US/OSXUpdCombo10.10.2.dmg

Name: OSXUpdCombo10.10.2.dmg

Size: 841,144,579 bytes (841.1 MB on disk)

MD5: 95c7be3023565453a83a7f7ab81102c1

http://support.apple.com/kb/DL1786?viewlocale=en_US&locale=en_US - This page shows a new Post Date of 28 Jan

Comparing the 2 packages - Line 35 in the Distribution file has been changed:

if (compareBuildVersions(my.target.systemVersion.ProductBuildVersion, '14B24') > 0) {


now reads:

if (compareBuildVersions(my.target.systemVersion.ProductBuildVersion, '14C109') > 0) {

Well, that is a good thing for many. The first release installed fine on my Macs, but will be installing the newer one just in case. I think I would advise others to do the same.

Cheers

Pete

I also could not install the OS 10.10.2 Combo Updater on either of my machines running OS 10.10.1. So, I just went ahead and used the 10.10.2 non-Combo Updater. Of course that worked, but why did Apple do this? In ALL my years of using Combo Updaters, have never had this issue. That is, the Combo Updater for any prior OS could be applied to any version of that OS. Example: the OS 10.9.5 Combo Updater was able to be applied to 10.9.0 (or 10.9), 10.9.2, 10.9.2, 10.9.3, and 10.9.4.

Hopefully, going forward with future Combo Updaters for Yosemite will work as in the past.

akent35 wrote:

but why did Apple do this?

No idea. Perhaps ask them?

feedback

Pete

I neither can't install it.

Why not?

Pete

I have this error also, I have the 14B25 build of Yosemite 10.10.1 on a MacBook Pro 13" 2012 with the i7 CPU, I also see this error on several other machines, this is the first time I see something like this happen with an upgrade from Apple, all other updates have been flawless. I downloaded the combo update to save on download to other machines but the same error is showing on all machines, but i have not tried an an old Macbook that I have.

The second version works. The opening of the install routine is also different.