USB Install?

[mmomega]

The fact that it has changed from the mavericks method does not surprise me that you couldn't get it working. But what perplexes me more is that after installing Yosemite, the recovery partition completly disappeared. The only thing bootable when starting up with the option key is the newly created installation of Yosemite.

We also have to remember that this is not a finished product yet.

The new instructions refer to InstallAssistant.app but I can't seem to find this app anywhere.

Where are the new instructions you are talking about .

I've found InstallAssistantToll and .icns but no .app as you probably found them also.

Actually go to the 10.10 DP.app and right click->Show Package Contents -> Contents and then MacOS has a file labeled InstallAssistant and Resources folder has 2 more files labeled InstallAssistant.icns and InstallAssistantTool

 

[nyc2pdx]

Just saw this on another forum

Worked for me, installing now from USB stick on a clean partition on my rMBP...

1. In applications folder, right click on Install OS X 10.10 Developer Preview, choose "Show Package Contents".

2. Open Contents / Shared Support

3. You'll see a Packages folder. Open terminal, enter:

open "/Volumes/OS X Install ESD/BaseSystem.dmg

4. Using Disk Utility, restore OS X Base System to your USB Stick. (Took a couple of times for me)

5. On the USB Stick, in System/Installation delete the link named Packages

6. Copy Packages from OS X Install ESD to the System/Installation folder on the USB Stick

7. Unhide files from the OS X Install ESD dmg to copy BaseSystem.dmg and Basesystem.chunklist (they are both hidden) and copy them onto the USB stick (not in a folder, top level)

8. Unmount USB stick. You now have a full bootable USB stick with the OS.

Good luck!

 

[saketbash]

Worked for me, installing now from USB stick on a clean partition on my rMBP...

1. In applications folder, right click on Install OS X 10.10 Developer Preview, choose "Show Package Contents".

2. Open Contents / Shared Support

3. You'll see a Packages folder. Open terminal, enter:

open "/Volumes/OS X Install ESD/BaseSystem.dmg

4. Using Disk Utility, restore OS X Base System to your USB Stick. (Took a couple of times for me)

5. On the USB Stick, in System/Installation delete the link named Packages

6. Copy Packages from OS X Install ESD to the System/Installation folder on the USB Stick

7. Unhide files from the OS X Install ESD dmg to copy BaseSystem.dmg and Basesystem.chunklist (they are both hidden) and copy them onto the USB stick (not in a folder, top level)

8. Unmount USB stick. You now have a full bootable USB stick with the OS.

Good luck!

+1 Initially read these instructions on the Developer forums and it works perfectly. Just make sure to have hidden files visible when completing step 7. Clean install works much more smoothly than the Upgrade I made earlier in the day.

 

[mmomega]

Worked for me, installing now from USB stick on a clean partition on my rMBP...

1. In applications folder, right click on Install OS X 10.10 Developer Preview, choose "Show Package Contents".

2. Open Contents / Shared Support

3. You'll see a Packages folder. Open terminal, enter:

open "/Volumes/OS X Install ESD/BaseSystem.dmg

4. Using Disk Utility, restore OS X Base System to your USB Stick. (Took a couple of times for me)

5. On the USB Stick, in System/Installation delete the link named Packages

6. Copy Packages from OS X Install ESD to the System/Installation folder on the USB Stick

7. Unhide files from the OS X Install ESD dmg to copy BaseSystem.dmg and Basesystem.chunklist (they are both hidden) and copy them onto the USB stick (not in a folder, top level)

8. Unmount USB stick. You now have a full bootable USB stick with the OS.

Good luck!

This is what I did earlier today and I got to the install, wiped my disk started installing then it through an error code and I had to reinstall another OS.
This is the same method I had to use for Mavericks DP1... I wonder what my problem is ... USB Media maybe ? I'll give it a go again tomorrow.

 

[vickysud]

+1 Initially read these instructions on the Developer forums and it works perfectly. Just make sure to have hidden files visible when completing step 7. Clean install works much more smoothly than the Upgrade I made earlier in the day.

Restored OS X Based system to USB / copied package folder to USB same as I did with Mavericks now when installing I get error saying " OS cannot be installed undefined error 0 "

 

[mmomega]

Restored OS X Based system to USB / copied package folder to USB same as I did with Mavericks now when installing I get error saying " OS cannot be installed undefined error 0 "

that was the same issue I had earlier today when I tried.
What type of USB drive are you trying ?
Mine is USB 3 Lacie rugged with a Samsung 840 Pro installed.
Next I'm going to just try my trusty Patriot Magnum 64GB USB3, for some reason it has worked installing OS's when some others I tried wouldn't work.

 

[tywebb13]

Where are the new instructions you are talking about .

I've found InstallAssistantToll and .icns but no .app as you probably found them also.

Actually go to the 10.10 DP.app and right click->Show Package Contents -> Contents and then MacOS has a file labeled InstallAssistant and Resources folder has 2 more files labeled InstallAssistant.icns and InstallAssistantTool

The instructions come when you run this in terminal:

/Applications/Install\ OS\ X\ 10.10\ Developer\ Preview.app/Contents/Resources/createinstallmedia

I did find those other files you talked about, but there is no InstallAssistant.app.

Anyway, the unix executable file createinstallmedia is still included in this installer, so it is not as if apple has abandoned it. But the new instructions seem to insist on using this InstallAssistant.app which we can't find. So I think it might not be ready yet. They might update it in the next DP.

Also, no recovery partition is installed with this first DP. So for now it is probably OK to do it nyc2pdx's way:

Worked for me, installing now from USB stick on a clean partition on my rMBP...

1. In applications folder, right click on Install OS X 10.10 Developer Preview, choose "Show Package Contents".

2. Open Contents / Shared Support

3. You'll see a Packages folder. Open terminal, enter:

open "/Volumes/OS X Install ESD/BaseSystem.dmg

4. Using Disk Utility, restore OS X Base System to your USB Stick. (Took a couple of times for me)

5. On the USB Stick, in System/Installation delete the link named Packages

6. Copy Packages from OS X Install ESD to the System/Installation folder on the USB Stick

7. Unhide files from the OS X Install ESD dmg to copy BaseSystem.dmg and Basesystem.chunklist (they are both hidden) and copy them onto the USB stick (not in a folder, top level)

8. Unmount USB stick. You now have a full bootable USB stick with the OS.

Good luck!

 

[helix21]

Worked for me, installing now from USB stick on a clean partition on my rMBP...

1. In applications folder, right click on Install OS X 10.10 Developer Preview, choose "Show Package Contents".

2. Open Contents / Shared Support

3. You'll see a Packages folder. Open terminal, enter:

open "/Volumes/OS X Install ESD/BaseSystem.dmg

4. Using Disk Utility, restore OS X Base System to your USB Stick. (Took a couple of times for me)

5. On the USB Stick, in System/Installation delete the link named Packages

6. Copy Packages from OS X Install ESD to the System/Installation folder on the USB Stick

7. Unhide files from the OS X Install ESD dmg to copy BaseSystem.dmg and Basesystem.chunklist (they are both hidden) and copy them onto the USB stick (not in a folder, top level)

8. Unmount USB stick. You now have a full bootable USB stick with the OS.

Good luck!

I can't see any packages folder. And putting open "/Volumes/OS X Install ESD/BaseSystem.dmg into Terminal does nothing.

I restored the InstallESD.dmg onto a USB stick but that just has a 5.1GB Packages folder in it. Sorry, I would appreciate some help

 

[Daniel97]

Mine 'appears' to be working ..

Downloaded DP1 on the Mac Mini (mavericks) - insert a blank usb (format for mac journaled)

select the DP1 from applications and ask it to install .. choose the USB drive ..

Currently installing with 8 mins left .. It did say the whole process was 14 mins long .. and its currently been about 40 .. its said 8 mins for the last 20 =\

 

[MarcusCarpenter]

Mine 'appears' to be working ..

Downloaded DP1 on the Mac Mini (mavericks) - insert a blank usb (format for mac journaled)

select the DP1 from applications and ask it to install .. choose the USB drive ..

Currently installing with 8 mins left .. It did say the whole process was 14 mins long .. and its currently been about 40 .. its said 8 mins for the last 20 =\

Is it bootable ??

 

[Daniel97]

Is it bootable ??

we shall find out soon lol

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http://support.apple.com/kb/ht5911

 

[knguyench]

" OS cannot be installed undefined error 0 "
I have the same problem. Anybody can fix it.

 

[yeldarbnamdlog]

" OS cannot be installed undefined error 0 "
I have the same problem. Anybody can fix it.

This problem occurs because you didn't copy the two 'hidden' files, as noted in step 7 of the process.

7. Unhide files from the OS X Install ESD dmg to copy BaseSystem.dmg and Basesystem.chunklist (they are both hidden) and copy them onto the USB stick (not in a folder, top level)

I got the Undefined Error: 0, when I first tried these steps, turned out I had not copied those two hidden files across to the USB.

As soon as I copied the two files across, the install completed successfully.

 

[vickysud]

This problem occurs because you didn't copy the two 'hidden' files, as noted in step 7 of the process.



I got the Undefined Error: 0, when I first tried these steps, turned out I had not copied those two hidden files across to the USB.

As soon as I copied the two files across, the install completed successfully.

hidden files you mean copying BaseSystem.dmg (478mb) and Basesystem.chunklist to the OS X Base System USB Drive ?

Where should i copy those two files ?

 

[yeldarbnamdlog]

you copy those two files onto the USB drive itself. Make sure you don't put them in a folder, even accidentally.

 

[vickysud]

you copy those two files onto the USB drive itself. Make sure you don't put them in a folder, even accidentally.

Copied those two files to the drive.

 

[yeldarbnamdlog]

and in System/Installation/ you replaced the blank 'Packages' alias with the actual 'Packages' folder from the Install ESD image?

The only thing I can think of then, is to repeat the entire process, but use a different USB drive.

 

[helix21]

This problem occurs because you didn't copy the two 'hidden' files, as noted in step 7 of the process.



I got the Undefined Error: 0, when I first tried these steps, turned out I had not copied those two hidden files across to the USB.

As soon as I copied the two files across, the install completed successfully.

Could you help me out with the process? I'm stuck at Step 3 and can't see any packages folder under /SharedSupport

Putting the command into Terminal does nothing and if I mount InstallESD.dmg, it just mounts as only a 'Packages' folder.

 

[yeldarbnamdlog]

Could you help me out with the process? I'm stuck at Step 3 and can't see any packages folder under /SharedSupport

Image

Putting the command into Terminal does nothing and if I mount InstallESD.dmg, it just mounts as only a 'Packages' folder.

Yeh, I had issues with that terminal command as well.

Here's how I got access to the BaseSystem.dmg

1) Double-click InstallESD.dmg in the Finder to mount its volume. That volume will appear in the Finder as 'OS X Install ESD'.

The file you want to get to is actually another disk image inside OS X Install ESD called BaseSystem.dmg. Unfortunately, BaseSystem.dmg is invisible, and because this is a read-only volume, you can’t make BaseSystem.dmg visible.

2) Open Terminal and then type open /Volumes/OS\ X\ Install\ ESD/BaseSystem.dmg and press Return.

(You may or may not need to put sudo in front of open, in the command.)

Once Step 2 is complete, BaseSystem.dmg will open and mount on the desktop, and then you can continue with step 4.

 

[helix21]

I managed to fix it For others having the same problem:

To see the "BaseSystem.dmg" file you need to first mount the InstallESD.Dmg AND have hidden files shown on Mavericks (using the terminal command). Then you mount the BaseSystem.dmg into Disk Utilities and restore it to the USB. Then follow carefully steps 7 and 8 like yeldarbnamdlog said and copy Packages from InstallESD into BaseSystem USB folder AND the hidden files.

Installing Yosemite as we speak

 

[Powertoola]

Worked for me, installing now from USB stick on a clean partition on my rMBP...

1. In applications folder, right click on Install OS X 10.10 Developer Preview, choose "Show Package Contents".

2. Open Contents / Shared Support

3. You'll see a Packages folder. Open terminal, enter:

open "/Volumes/OS X Install ESD/BaseSystem.dmg

4. Using Disk Utility, restore OS X Base System to your USB Stick. (Took a couple of times for me)

5. On the USB Stick, in System/Installation delete the link named Packages

6. Copy Packages from OS X Install ESD to the System/Installation folder on the USB Stick

7. Unhide files from the OS X Install ESD dmg to copy BaseSystem.dmg and Basesystem.chunklist (they are both hidden) and copy them onto the USB stick (not in a folder, top level)

8. Unmount USB stick. You now have a full bootable USB stick with the OS.

Good luck!

Thanks nyc2pdx and everyone else who helped, I shall give it a go now spent ages trying to figure this out


The Method seems to be working thus far, I shall confirm to everyone, once the installation has completed.

for any inexperienced people watching this thread, to unhide and rehide files in os x

defaults write com.apple.finder AppleShowAllFiles 1 && killall Finder
defaults write com.apple.finder AppleShowAllFiles 0 && killall Finder

that works on 10.9.x

1 = show all files
0 = do not show all files.

Also if you want a clean installation, make sure once the usb boots, make sure you go to utilities at the top, disk utility and format your installation drive, otherwise you'll just be installing Yosemite over Mavericks

 

[lucansmiles]

Is it safe using the method explained above to install OS X Yosemite on a newly created partition away from the main OS X Mavericks partition on the main internal drive?
I've read somewhere OS X Yosemite will erase partitions on the Mac it is installed on... Is this true? If yes, will the new method circumvent this?

 

[tywebb13]

I just used nyc2pdx's method to make a bootable usb and installed it onto a partition.

I'm now dual booting mountain lion and yosemite.

No partition was deleted.

So it is definitely safe.

(I haven't tried dual booting mavericks and yosemite though - but I expect that should be equally as safe).

Perhaps you may have seen that the "recovery partition" will be deleted if you "upgrade" to yosemite.

But that is very different to dual booting an old system replete with recovery partition and a newly formatted one devoted to a clean install of yosemite, albeit devoid of such an accompanying recovery partition.

 

[yeldarbnamdlog]

I've read somewhere OS X Yosemite will erase partitions on the Mac it is installed on... Is this true? If yes, will the new method circumvent this?

The DP1 build of Yosemite doesn't do any such thing...It works the same as the Mavericks installer that you get from the Mac App Store.

The only difference between this build of Yosemite and the official Mavericks installer, is that the createinstallmedia method doesn't work with Yosemite DP1...It seems as if, for Yosemite, Apple have changed the method to create a bootable USB installer, but haven't fully implemented it in this build.

 

[lucansmiles]

Thanks guys for clearing that up! Just wanted to make sure everything is safe for installing it on my main machine.