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Mac Pro 2,1 and OS X Mavericks

Ok...I'm using the Tiamo hack which reinstalls a new boot.efi after every restart so that I can do maverick updates. Would the hacked boot.efi be reinstalled automatically during a Yosemite DP1 upgrade?

I installed the Yosemite DP1 onto my MBA and its awesome but a little laggy, I may hold off a month or so for a updated release before installing on my 2,1 MP. Hopefully this will all be sorted out by then.
 
azimuthal said:
Any one have any thoughts as to running Yosemite on Mac Pro 1,1? I have Mavericks running on my Mac Pro 1,1 and am really hoping we can use the same 32bit boot.efi to run Yosemite...

Any thoughts?

Thanks,

Azi
Click to expand...
The post directly above yours………...
 
666sheep said:
Didn't work on my 2,1 with Tiamo's boot.efi so far. Just sits on grey screen with Apple. I'll play some more with it later today (verbose mode, clean install, another graphics card etc.).

BTW, it's really fugly :mad:
Click to expand...

tiamo may be will write/modify his boot.efi
 
JoSch said:
You know, crap is in the eye of the beholder ;-)
Click to expand...

Absolutely but I’d suggest that even those that prefer the plain look can’t deny that it’s less functional/descriptive.
Anyway, we’re off topic. Mind you even my next topic about 10.10 and the MP1,1 is off topic…….

----------
fhenry said:
tiamo may be will write/modify his boot.efi
Click to expand...

Just installing to an external HD right now, I’ll have a play about later, (after stealing the wallpapers for my current install).
 
H2SO4 said:
Just installing to an external HD right now, I’ll have a play about later, (after stealing the wallpapers for my current install).
Click to expand...
Tried it last night, but I ended up restoring Mavericks on the disk.

It appears that during the install process, Yosemite changes the partitions to use CoreStorage even on unencrypted volumes. Older versions of Disk Utility cannot check these. I also suspect that boot.efi has to be replaced on the Recovery HD used during part of the boot.

I upgraded the disk on a system supporting Yosemite all the way to a working system and then replaced the boot.efi. But on restoring into the Mac Pro 2,1, I ended up with a black screen on boot, then a reboot to a white Apple screen that never changed.

After that, I ran out of time.
 
haralds said:
Tried it last night, but I ended up restoring Mavericks on the disk.

It appears that during the install process, Yosemite changes the partitions to use CoreStorage even on unencrypted volumes. Older versions of Disk Utility cannot check these. I also suspect that boot.efi has to be replaced on the Recovery HD used during part of the boot.

I upgraded the disk on a system supporting Yosemite all the way to a working system and then replaced the boot.efi. But on restoring into the Mac Pro 2,1, I ended up with a black screen on boot, then a reboot to a white Apple screen that never changed.

After that, I ran out of time.
Click to expand...

That’s very unfortunate and very annoying. I have no doubt that somebody somewhere will get the better of it soon enough though.
 
I just sucessfuly upgraded my Mac Pro 2,1 (Tiamo Boot.efi) from 10.9.2 to 10.9.3 with the delta update through the App store with no issues. I did not use his latest script fix either. So don't use the combo update, or you'll have to copy the boot.efi files again. I would only use the combo if for some reason I need to start from 10.9 again with a fresh install which may be required from time to time. Looks like Quicktime screen recording is fixed with 10.9.3. Yeah ;)
 
Can't restore mavericks hard drive crash using time machine

I used Tiamo's method to run Mavericks on a 2,1 2007 machine. It was working great. Months later, My hard drive crashed. I got a new hard drive and tried to boot from an old Lion usb so I could use Time machine to restore it. Time Machine says,

You can't restore this backup because it was created by a different model of mac.

(I also put in the old graphics card because I couldn't see the screens if that has anything to do with it? The new one is an ati 5770 recommended by this forum).

Is there some way to restore my harddrive. I have lots of time machine backups with mavericks on it but can't figure out how to get past this error.
 
tripmusic said:
I just sucessfuly upgraded my Mac Pro 2,1 (Tiamo Boot.efi) from 10.9.2 to 10.9.3 with the delta update through the App store with no issues. I did not use his latest script fix either. So don't use the combo update, or you'll have to copy the boot.efi files again. I would only use the combo if for some reason I need to start from 10.9 again with a fresh install which may be required from time to time. Looks like Quicktime screen recording is fixed with 10.9.3. Yeah ;)
Click to expand...

As soon as I can muster the courage I will be upgrading my Late=2006 iMac 5,1 from Lion to 10.8.2 Mountain Lion. I was planning to use the Combo Update to bring it up to 10.8.5, but now you’ve got me worried. Do you think the same issue will effect me too?
 
PorkPieHat said:
As soon as I can muster the courage I will be upgrading my Late=2006 iMac 5,1 from Lion to 10.8.2 Mountain Lion. I was planning to use the Combo Update to bring it up to 10.8.5, but now you’ve got me worried. Do you think the same issue will effect me too?
Click to expand...

I'm not sure. I went straight to Mavericks from Snow Leopard. Haven't played with ML. Even if you use the Combo update, copying the boot files back over to the MP 1,1 isn't too dificult and may only require you to type one line in Terminal. This is of course after staring senselessly into my monitor for a few hours figuring out how to optimally do things with my set-up. Are you using this Tiamo boot efi to run ML, or ML PostFactor?
 
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Can someone clarify what Tiamo's boot efi is actually doing as the Mac boots up? Mav's shows a 64bit kernel running. People here are saying a 32bit boot efi.
 
Trying to upgrade to 10.9.3 but get this error

I'm using the direct download link for 10.9.3 someone posted earlier on this thread. The combo link did not work for me. I'm trying to upgrade from 10.9.1 to 10.9.3 directly and with the direct download I get an error of

OsX update can't be installed on this disk. This volume does not meet the requirements for this update.

This is a new hard drive with 10.9.1 installed using tiamo's method.

This is on a 2,1 2007 with 5570 ati card. Was working fine until the original hard drive crashed. Still haven't figured out how to restore it using time machine so I'm trying to start fresh with 10.9.3.
 
tripmusic said:
Can someone clarify what Tiamo's boot efi is actually doing as the Mac boots up? Mav's shows a 64bit kernel running. People here are saying a 32bit boot efi.
Click to expand...
Mac Pro cannot boot, because it has a 32 Bit EFI ROM and Mavericks runs in 64 bit mode. Certain low level APIs to NVRAM etc. are only available as 32 bit calls.

Tiamo's BOOT.efi inserts a THUNK, which translated the needed calls from 64 bit to 32 bit thus presenting a 64bit EFI ROM to the OS.

Otherwise, it uses the Darwin boot.efi source.

The changed PLISTs list the hardware as supporting Mavericks in 64 bit mode.

You will need a video card supported by Mavericks.
 
haralds said:
Mac Pro cannot boot, because it has a 32 Bit EFI ROM and Mavericks runs in 64 bit mode. Certain low level APIs to NVRAM etc. are only available as 32 bit calls.

Tiamo's BOOT.efi inserts a THUNK, which translated the needed calls from 64 bit to 32 bit thus presenting a 64bit EFI ROM to the OS.

Otherwise, it uses the Darwin boot.efi source.

The changed PLISTs list the hardware as supporting Mavericks in 64 bit mode.

You will need a video card supported by Mavericks.
Click to expand...

So it IS running in true 64bit :confused:
 
Homebrew bootloader for OS X 10.9 questions

Thanks, in advance, for guidance.

1. I've created a Maverick's 10.9.3 Installer on a USB thumb drive, but a few things about tiamo's steps are unclear.

Should I have started with 10.9.1 or 10.9.2 instead of 10.9.3?

2. replace boot.efi
boot.efi can be found at System/Library/CoreServices/boot.efi and usr/standalone/i386/boot.efi

Replace which boot.efi (where)? Replace a version of the file that is on the thumb drive, I assume? And from where do I obtain the replacement boot.efi file? It can't be off the Mac Pro 2,1 that I need to install this on. Can it?

3.insert your board-id into OSInstall.mpkg (please google it)

4.insert your board-id into InstallableMachine.plist (please google it)

I've only looked on the first page of Google results, but have not yet found this for my Mac Pro 2,1...
 
My initial boot.efi installation questions below finally were answered by closely following three Web posts (two here and one elsewhere). I'm happy to report I have successfully installed OS X v10.9.2 Mavericks onto a new, OWC 480GB Electra 3G SSD drive I just added to the lower optical bay of my 2008 (late 2007) Mac Pro (2,1). I still have all the 10.9.3 and App updates to do, but this is a start.

http://eshop.macsales.com/shop/SSD/OWC/

Four unanswered questions:
1. Can a recovery partition be added to an SSD and installed after the fact?
2. At this point, could I have started with OS X v10.9.3, which obviously, would save me (and everyone) all the extra updating?
3. Once the updates are run, will I have to replace the boot.efi file in multiple locations yet again?
4. Does it have to be replaced every time you reboot the machine? I thought I read about this somewhere (I hope not).


The procedures I followed did not install a recovery partition on the new drive; I recall reading about this somewhere along the way but forgot to go back to it — I was jumping around between instruction sets way too much. It took me two tries across a long ten-hour day to get this right — the first one did work (I must have missed a step when building the the first Installer disk. Ideally, someone with more experience needs to review and re-edit all the procedures and combine them into a single, long update from time-to-time...

Thanks to all in this group who made this possible, especially Tiamo and Rough Edge!

The Posts to follow for success:
How to create an OS X Mavericks install drive [Updated]
http://www.tips-and-tricks-in-mavericks.com/how-to-create-an-os-x-mavericks-install-drive/

Tiamo's HOMEBREW BOOTLOADER post (Msg. #26 on page 2 of this forum)
https://forums.macrumors.com/threads/1598176/

Rough Edge's COMPLETE GUIDE TO INSTALL MAVERICKS ON MACPRO’S 1,1 AND 2,1 USING TIAMO'S BOOT.EFI
(Msg. #388 on page 16 of this forum)
https://forums.macrumors.com/threads/1598176/



MY QUESTIONS AFTER THE FIRST, UNSUCCESSFUL ATTEMPT
(mostly answered already)
__________________________________________________
HD Boy said:
Thanks, in advance, for guidance.

1. I've created a Maverick's 10.9.3 Installer on a USB thumb drive, but a few things about tiamo's steps are unclear.

Should I have started with 10.9.1 or 10.9.2 instead of 10.9.3?

2. replace boot.efi
boot.efi can be found at System/Library/CoreServices/boot.efi and usr/standalone/i386/boot.efi

Replace which boot.efi (where)? Replace a version of the file that is on the thumb drive, I assume? And from where do I obtain the replacement boot.efi file? It can't be off the Mac Pro 2,1 that I need to install this on. Can it?

3.insert your board-id into OSInstall.mpkg (please google it)

4.insert your board-id into InstallableMachine.plist (please google it)

I've only looked on the first page of Google results, but have not yet found this for my Mac Pro 2,1...
Click to expand...
 
HD Boy said:
Four unanswered questions:
1. Can a recovery partition be added to an SSD and installed after the fact?
Click to expand...
Yes, there is a script, that creates a recovery volume (Google it).
But remember: Replace boot.efi on that recovery volume with tiamo's.
 
SFOTT does all that stuff and I've used it to create boot media for Mac Mini 1,1's as well as Mac Pro 1,1s.

http://oemden.com/?page_id=585

BTW, in my experience get the most RAM you can, I have two Mac Pro 1,1's, one I bought 8 GB of NEMIX RAM (4 X 2 GB FBDIMMs) and the other is using the crappy 5 GB of RAM it came with (2 X 1 GB FBDIMMs, 6 X 512 MB FBDIMMs) and the 8 GB oMP runs BOINC jobs about 20% faster than the 5 GB one.
 
Last edited:
JoSch said:
Yes, there is a script, that creates a recovery volume (Google it).
But remember: Replace boot.efi on that recovery volume with tiamo's.
Click to expand...

The AppleScript mentioned automatically creates a 10.7, 10.8 or 10.9 Recovery Partition after the fact — and it worked perfectly.

I am about to replace the boot.efi on the new recovery partition, but before doing that, I first installed Apple's 10.9.3 Software Update. I figured this 2,1 machine would not boot after running that updater, but it did and I thought I was going to have re-install the boot.efi files onto the two, hidden OS X folders where it resides.

What's up with this? Is it possible that the boot.efi file is not touched by minor OS X updates?
 
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