have you tried the mavericks developer previews?
1st one had build 13A476u.
This adds Extend Desktop to airplay mirroring and is worth the upgrade from mountain lion just for that.
i put it on an mba today.
the golden master should be out in a few months and a bit later the final version will be available on the mas.
just a word of warning regarding making bootable usb drives.
the old method available all over the net for the last few years doesn't work with mavericks.
you have to do it slightly differently to get it to work.
(EDIT: Note that this should ONLY be used for DP1. NOT build 13A603 or subsequent updates. Other, better methods exist for these which you can see further down in this thread.)
1. Show hidden files. There are several ways to do this, but the easiest is probably to use the Revealer app from http://trcdatarecovery.com/software-apps/revealer-app.
2. Right click Install OS X 10.9 Developer Preview.app file and click Show Package Contents, Open Contents folder, then look in SharedSupport folder. You will see InstallESD.dmg.
3. Mount InstallESD.dmg.
4. Copy the BaseSystem.dmg file out to somewhere convenient.
5. Do not mount BaseSystem.dmg. Just open Disk Utility and restore it to a flash drive.
6. When that's done look in the flash drive you just restored to and go to /System/Installation/. In that folder you will see a white icon with an arrow called Packages. That's a broken alias. Delete it.
7. Now go back to your InstallESD.dmg file. Inside is a folder weighing in at about 4.5GB called Packages. Copy that folder onto the flash drive in place of where the alias was.
8. Boot from the flash drive and install.
Note that unlike previous versions, this bootable usb will not create a recovery partition for mavericks.
To do that, follow these steps:
1. Download the Lion Recovery Update from http://support.apple.com/kb/dl1464 . Make sure it is in your downloads folder. Then right click on the Install OS X 10.9 Developer Preview.app file and click Show Package Contents. Go to Contents/SharedSupport/. Copy the InstallESD.dmg file into your Downloads folder.
2. Download and decompress the attached file and move recovery.sh into your Downloads folder if it's not there already.
3. 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 to test your new recovery partition.
1st one had build 13A476u.
This adds Extend Desktop to airplay mirroring and is worth the upgrade from mountain lion just for that.
i put it on an mba today.
the golden master should be out in a few months and a bit later the final version will be available on the mas.
just a word of warning regarding making bootable usb drives.
the old method available all over the net for the last few years doesn't work with mavericks.
you have to do it slightly differently to get it to work.
(EDIT: Note that this should ONLY be used for DP1. NOT build 13A603 or subsequent updates. Other, better methods exist for these which you can see further down in this thread.)
1. Show hidden files. There are several ways to do this, but the easiest is probably to use the Revealer app from http://trcdatarecovery.com/software-apps/revealer-app.
2. Right click Install OS X 10.9 Developer Preview.app file and click Show Package Contents, Open Contents folder, then look in SharedSupport folder. You will see InstallESD.dmg.
3. Mount InstallESD.dmg.
4. Copy the BaseSystem.dmg file out to somewhere convenient.
5. Do not mount BaseSystem.dmg. Just open Disk Utility and restore it to a flash drive.
6. When that's done look in the flash drive you just restored to and go to /System/Installation/. In that folder you will see a white icon with an arrow called Packages. That's a broken alias. Delete it.
7. Now go back to your InstallESD.dmg file. Inside is a folder weighing in at about 4.5GB called Packages. Copy that folder onto the flash drive in place of where the alias was.
8. Boot from the flash drive and install.
Note that unlike previous versions, this bootable usb will not create a recovery partition for mavericks.
To do that, follow these steps:
1. Download the Lion Recovery Update from http://support.apple.com/kb/dl1464 . Make sure it is in your downloads folder. Then right click on the Install OS X 10.9 Developer Preview.app file and click Show Package Contents. Go to Contents/SharedSupport/. Copy the InstallESD.dmg file into your Downloads folder.
2. Download and decompress the attached file and move recovery.sh into your Downloads folder if it's not there already.
3. 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 to test your new recovery partition.
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