On June 2, 2014, Apple announced the next iteration of its powerful, yet elegant OS X operating system. Continuing the naming trend, was made available the same day as the in the form of a Developer Preview beta for software developers to test their apps on the new platform. What about the end-user? Must we really wait until later this year to try out Apple's latest OS? Those interested in testing Yosemite may sign up for the, which will allow them to test the new OS, if selected. A word of caution, however, as beta software is just that. Largely untested and full of bugs, this may lead to conflicts with production systems.
Additionally, certain applications may not work fully (or at all) until updates are made available. It you decide to install beta software, you should do so on a sanitized, secondary device that meets to minimize issues. With that said, follow the steps below to create a bootable USB installer:. Insert the USB Flash Drive (or SD Card) into the Apple computer, and launch Disk Utility.app from the Applications Utilities folder.
Select the drive you wish to use from the device list and click the Partition tab. Under Partition Layout, select 1 Partition from the drop-down menu. Enter a name for the device, and select the format as Mac OS Extended (Journaled) from the drop-down list next to Format ( Figure A). Figure A. Click the Options button to bring up the partition scheme menu. Select the radio button next to GUID Partition Table, clicking OK to accept the change ( Figure B).
Figure B. Verify the changes to be made to the drive are correct, and then click Apply. A verification prompt will appear.
Click Partition to execute the changes ( Figure C). Figure C.
Depending on the size of the drive, the changes typically take several minutes to process. Once completed, the removable drive will be prepped for OS X ( Figure D). Figure D.
Launch Terminal.app to enter a command that will unhide the hidden files needed to complete the next few steps. Enter the following command ( Figure E): defaults write com.apple.finder AppleShowAllFiles 1 KillAll Finder Figure E. Navigate to the location where the OS X 10.10. DP1.app file is saved. Right-click the installer and select Show Package Contents from the context menu ( Figure F). Figure F.
Sort through the file hierarchy Contents SharedSupport and mount the InstallESD.dmg file by double-clicking it ( Figure G). Figure G. With the contents of the InstallESD.dmg file visible, there are two files specifically that will be used to create the OS X installer to the removable drive: BaseSystem.dmg and the Packages folder ( Figure H). Figure H. Switch back to Disk Utility.app to select the partition name created in step #2.
Next, select the Restore tab and drag the partition from the device list to the Destination box. Also, drag the BaseSystem.dmg file from the finder window to the Source box ( Figure I). Figure I. Clicking the Restore button will prompt a confirmation message. Clicking Erase will initiate the process to install the files onto the drive. Additionally, Disk Utility will request administrative authorization to perform the task. Enter the administrative credentials and click OK to execute the commands ( Figure K).
Figure K. The process can take several minutes to complete. However, by my experience, it is far shorter than what is stated by the progress bar ( Figure L). Figure L. Upon completing the file transfer, the drive will auto-mount in Finder. Navigate to the System Installation directory where you will find an alias to the Packages folder. Delete the Packages alias by right-clicking the file and selecting Move to Trash from the context menu ( Figure M).
Figure M. To replace the alias, copy the Packages folder from Step #9 to the Installation directory.
Use the Restore Disk Image to Drive dialog box to browse for the DMG file with the installation files for Mac OS X Yosemite in this case, and click OK to create a bootable USB of the operating system. Now, you’ll have to wait a long time. Use the Restore Disk Image to Drive dialog box to browse for the DMG file with the installation files for Mac OS X Yosemite in this case, and click OK to create a bootable USB of the operating system.
![Bootable Bootable](/uploads/1/2/5/5/125511601/681737877.jpg)
![How To Make A Bootable Usb For Mac Os Yosemite How To Make A Bootable Usb For Mac Os Yosemite](/uploads/1/2/5/5/125511601/459362516.jpg)
Again, the transfer time will depend greatly on the age of the machine ( Figure N). Figure N.
As a rule of thumb, unless specifically necessary to your daily functions on the computer, launch Terminal.app to enter the command to make the system files hidden again. While optional, it is generally not considered a good security measure to keep these files unhidden. Enter the following command ( Figure O): defaults write com.apple.finder AppleShowAllFiles 0 KillAll Finder Figure O With the transfer completed and the files safely hidden again, the removable drive is ready to perform a clean or upgrade installation of OS X Yosemite.
The process is almost identical to the. To perform a clean install, simply insert your drive, power on the computer, and hold down the option key to access the boot selection menu. From there, select the USB drive partition, and follow the prompts to install OSX 10.10 on your Mac. If performing this as an upgrade, then launch the Install OS X 10.10 Developer Preview.app from the root of the newly created drive, following the prompts to install it from a live environment. Also see.
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Hey everyone, I wanted to share a method I've borrowed (and tweaked) from other sites in regards to making a bootable Yosemite installation DVD that works. Before going any further, I fully know and agree that DVD installation media is old and being phased out and replaced by bootable USB installer media. This guide however is for those computer/network technicians who still need AND use optical media for our own systems or customer systems. PLUS it's more economical to have a small CD booklet with each OS X version readily available for quick use.
So if you want to make issue over why I created a DVD guide vs USB, just don't waste your time. So far this is confirmed with Developer Preview 1. Will edit as I confirm with other previews/betas. Simply open up terminal (Hard Drive - Applications - Utilities - Terminal) and copy and paste each command. Then burn the.iso file created on the desktop. I had issues burning on the MacBook Pro 13, so I copied it to my Windows PC and used imgburn which works just fine. I've included comments detailing what each command does.
In case anyone is interested. Mount the InstallESD image to 'installapp' without verifying or opening Finder. Code: mv /tmp/Yosemite.cdr /Desktop/Yosemite.isoNow you will have 'Yosemite.iso' on your desktop. You can try using Disk Utility, Toast, or even a Windows PC to burn this image. My experience created too many coasters burning this with Disk Utility or Disco.
But was flawless on IMGBURN on Windows. I would like to thank and give credit to the two following sites. I took my method from the terminal commands posted by 'tywebb13' for creating bootable Mavericks discs, and similar terminal commands by Dan Frakes over on MacWorld aimed at specific Yosemite changes. Not sure if that will work with yosemite.
I'm not curious enough to waste a DL DVD to test it yet. I'm still going to wait for public release of yosemite. However I will say that when mavericks was publicly released experiments were made with that and attempts to make a bootable dvd with createinstallmedia did not work properly. It did actually make a bootable dvd, but when one attempted to use it to actually do an installation, it did not work. Hence the terminal method instead.
Also, the mavericks dvd did not make a recovery partition. I don't know yet if the yosemite dvd will create a recovery partition. If it doesn't, you can make one by doing the following. Firstly, if the yosemite dvd makes a core storage logical volume, revert it to get partitions back to normal by running these 2 commands in terminal. Diskutil cs list and then diskutil coreStorage revert lvUUID where lvUUID is the last lvUUID reported by the previous Terminal command.
Then restart for everything to get back to normal after you have run these commands in Terminal. Next, you create the recovery partition by following these steps: 1. Download the Lion Recovery Update from. Make sure it is in your downloads folder. If you still happen to have the yosemite installer app somewhere, right click on it and click Show Package Contents. Go to Contents/SharedSupport/. Copy the InstallESD.dmg file into your Downloads folder.
If you don't still have the installer, you can get it again by redownloading from your purchases tab in your mac app store. Download and decompress the file recovery.sh.zip from and move recovery.sh into your Downloads folder if it's not there already. Open Terminal and type the following commands: chmod +x /Downloads/recovery.sh sudo /Downloads/recovery.sh 4.
Wait a few minutes for it to finish and return back to a prompt. Reboot with holding down the option key to test your 10.10 recovery partition. Hi there, I just wanted to post and let everyone know that this method DOES work. I created the boot DVD using the steps above and it successfully created an install DVD.
I did a lot of research and found this to be the only method that works. I have some nice DL coasters now after attempting other methods to create a Yosemite install DVD. The installer also created a recovery partition for me on my Mac mini. Keep in mind, it takes a LONG time to install with this method. It was about 30 to 45 minutes just to boot from the DVD, and then about an hour to install Yosemite. I'm not really sure why Yosemite has such a long boot time compared to other OSes (I don't recall Mavericks taking this long).
I do want to give a big thanks to everyone who helped create this method, and to those who did a lot of trial and error trying to get it to work. It truly saved me many more hours of research and DL DVD coasters. Thanks again!!!
How to create a complete YOSEMITE install DVD Superseeded by post #14 Hi there bawalker, hello to all, thanks a lot for sharing your method with us! I see only one drawback. It will not create a recovery partition. Yesterday I was curious to find out if I would manage to create a complete install DVD of YOSEMITE.
That is an install DVD that would also create a recovery partition. And eventually I did! My first guess was to use the createInstallMedia tool together with an image file. I could create that image file and burn it to a double layer DVD. I could also boot from that DVD but in the end it told me I cannot start the installation from readonly media.
My second guess was to create an install USB key with the createInstallMedia tool and copy it to a DVD. That turned out the same as the first try. I noticed some time ago that when you install from an USB key dialogs differ between the first time you use an USB key and the subsequent times.
So I concluded there must be some change on the USB key. So my third try was to copy the USB key to DVD after I made an installation with the USB key. And here we go. But now I was eager to find out what had changed on the USB key. I run a diff command and found out there is just one difference, a file that is created on the USB key while installing for the first time!
And here is the solution how to create a complete install DVD that would also create a recovery HD with just a few shell commands: 0. Download the latest YOSEMITE installer from the app store. Grab a double layer DVD. Open a terminal window. Create the image file you will copy the installer to. How to create a YOSEMITE install and recovery DVD Superseeded by post #17 Hi there, As there is still enough free space left on a double layer DVD when you copy the installer to it, I decided to additionally create a recovery partition on the DVD.
So you have the choice to install from DVD with the installer or to download the setup from the internet and install that with the recovery. Download the latest YOSEMITE setup from the app store, get a double layer DVD and open a terminal window. Create an empty image of a double layer DVD. Create Yosemite Install and Recovery DVD Superseeded by post #49 Hi there, finally I managed to create the recovery partition with Apple's dmtest tool So here is the (mostly) complete guide: 0. What you need:. the from the app store, it's version 10.10.3 on 20150409 or later, leave it in the /Application folder. from the Apple website, leave it in the /Downloads folder.
the text file attached to this post, matching your version of the Yosemite installer, leave it in the /Downloads folder. 1. Create an empty disk image. Asr adjust -target /dev/diskXsY -settype AppleHFS diskutil mount /dev/diskXsY Look at 1.
For the actual value of X, in my case '/dev/disk1' Look at the previous command for the actual value of Y, in my case '3' so together its '/dev/disk1s3' 8. Actually we should burn the image at this point and we would be done. But there's one glitch: We had to use GPT for the dmtest tool.
Unfortunately I've not been able to burn a DVD with GPT AND two partitions. The partitions are always missing on the DVD (not on the disk image, just on the physical DVD). So as a workaround we have to move stuff to a second disk image with MBR or APM. Workaround the GPT DVD glitch. Hdiutil burn /Desktop/DVD-fix.dmg I hope this helps! In case you see some optimization, just let me know.
I think it would be nice to minimize user interaction, but I'm not going into sed or awk now. And of course would be much better without the workaround for GPT.
So if you know how to burn GPT with two partitions to DVD. Thanks go to a lot of people who helped me with bits and pieces of their knowledge:. The guys in THIS thread, especially bawalker and tywebb13.
The guys in over at apple forums. And some more I don't remember right now. And Children of Bodom and Iced Earth for musical support Regards, Mike. Still no luck.
First of all, just want to say excellent write up, and I love the creativity involved in hacking together a bootable DVD. It's been a loooong time since my command line days. But I've not been successful with this. Yes the DVD boots, and yes, the recovery partition shows up when it is inserted, but I still get this message: The Install OS X Yosemite application can't be used from this disk. Copy this application to a writable Mac OS Extended formatted disk and reopen it to continue installation.
I did include the command to add the file IAProductinfo10103.txt cp /Downloads/IAProductInfo10103.txt /Volumes/Install OS X Yosemite/.IAProductInfo And it does show up correctly on the DVD volume as.IAProductinfo Could there be something I'm missing? First of all, just want to say excellent write up, and I love the creativity involved in hacking together a bootable DVD. It's been a loooong time since my command line days. But I've not been successful with this.
Yes the DVD boots, and yes, the recovery partition shows up when it is inserted, but I still get this message: The Install OS X Yosemite application can't be used from this disk. Copy this application to a writable Mac OS Extended formatted disk and reopen it to continue installation. I did include the command to add the file IAProductinfo10103.txt cp /Downloads/IAProductInfo10103.txt /Volumes/Install OS X Yosemite/.IAProductInfo And it does show up correctly on the DVD volume as.IAProductinfo Could there be something I'm missing?