OS X could not be installed on your computer

is no-one else experiencing this issue?

short of reformatting the drive and doing a clean install, surely this shouldnt be necessary???

thanks Yosemite. Next time I'll go to Yellowstone.

This doesn't work for me.

😟

although the installation process looks like it's slightly different by these means vis a vis the USB installer startup disk i created. With the USB key it gets to about 15 minutes before reporting probelms with the pkg. file, now it gets to random install time left.

via Cmd + R recovery. the first time the installer got to about 4 mins remaining and bombed out saying 'an error occurred while preparing the installation. Try running the installer again. When I rebooted I had to log into my Wireless network again as it had forgotten the password, which somehow it had never asked for during the last several attempts.

During this latest install attempt, the counter showing the remaining time at one point grew to 34 hours, has now shrunk down again to 33 mins and has been stuck on that for at least an hour and a half. Think its timed out somewhere behind the scenes.

Interestingly, the installer log is full of errors. They don't mean much to me, but it isn't happy.

The Install Asst. reports error 395: Failed to verify InstallESD.dmg: hdutil verify failed

then: Retrying Pisa://7fbbe4f7cc90:::/InstallESD.dmg after 1 failure.... 2 failures etc etc/

Im slowly loosing my mind here.Ive never had any uissues like this for as long as I've been a Mac user.

My very first mac was a Mac SE...

and as luck would have it, I didn't have a current backup thinking all would be well (as it has always been during updates/upgrades).

I've been able to copy my HD using the DiskUtil onto another external drive and all my files are accessible that way, so I haven't lost anything,

but this is really really really really annoying. Did I mention this was annoying?

I wonder if encryption on my HD is interfering in any way, as I have the encyrption turned on. Would be interesting to hear from other who have this same issue as to their encryption status.

As said, Ive tried installing Yosemite from the App Store initially, that failed.

Several attempts later I downloaded the Yosemite installer stub and made a USB startup disk with installer. That failed.

Now ive done the Recovery route and it is still failing....

all this headache for what seems to be nothing much more than a GUI update that looks like its a kindergarten project.

But if you don\t update, you get left behind, so there is hardly much choice... :-/

I'm scared now of updating the computer i'm writing this on (Imac desktop), in case it fairs the same destiny. Not to mention my GF's MBP and my dads MBP....even the thought instills horror 😉

As a Windows user said to me recently, Apple are not having a good time with their system software updates. within 1 week of iOS8 being released, there was already a faulty 8.0.1 update which got canned quickly. Now we have issues with Yosemite.

Bring back Jobs, that's what I say.

and another thing, Im so glad I'm on an unlimited ISP tarif via Fibrebroadband. All this repetitive downloading would have eaten a capped connection in next to no time.

not sure if the memory hardware swap is gonna work.

My MBP Retina is OEM so to speak, it has all the original items as shipped from factory incl. the memory units. so i don't think that will help in this situation (but I wish you luck).

interesting, you say you've done a clean install and this didn't do anything? this was going to be my next attempt once I'd come to terms with not having a current time machine backup.

But you're saying this didn't work either???... wow!

I too am on a SSD, but it's the original Apple part in my MacBook Retina.

I have downloaded and copied the Mavericks Installer onto a bootable USB stick so I'm going to try and downgrade back to Mavericks now, but from what you say this may also be a waste of time...

If it does work, and I somehow get my 'puter back up and running, I'll be doing a time machine backup then trying the upgrade process again (i love the pain) 😉