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How to install OS X Yosemite developer preview in VirtualBox

a guest Jun 5th, 2014 27,303 Never
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  1. # How to install OS X Yosemite inside VirtualBox
  2. http://www.engadget.com/discuss/how-to-install-os-x-yosemite-inside-virtualbox-1rey/
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  4. Image: http://i.imgur.com/dc8qhut.png
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  6. Yosemite's first developer preview was released right after Monday's WWDC opening keynote. For the general public, an open beta will be available to download later this summer. However, for those who want a sneak peek at the new hotness, there is a way to safely install it without risking your machine, using the free and powerful VirtualBox application from Oracle.
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  8. Steps (most likely, the Engadget forums are going to bork the formatting, I'll drop in a Pastebin link below):
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  10. 1. Download Yosemite from the App Store (or your favorite digital content distribution warehouse)
  11. 2. Open terminal
  12. 3. Run "gem install iesd"
  13. 4. Run "iesd -i /Applications/Install\ OS\ X\ 10.10\ Developer\ Preview.app -o yosemite.dmg -t BaseSystem"
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  15. Adding additional steps because certain files end up missing from above:
  16. 5. Run "hdiutil convert yosemite.dmg -format UDSP -o yosemite.sparseimage"
  17. 6. Run "hdiutil mount /Applications/Install\ OS\ X\ 10.10\ Developer\ Preview.app/Contents/SharedSupport/InstallESD.dmg"
  18. 7. Run "hdiutil mount yosemite.sparseimage"
  19. 8. Run "cp /Volumes/OS\ X\ Install\ ESD/BaseSystem.* /Volumes/OS\ X\ Base\ System/"
  20. 9. Run "hdiutil unmount /Volumes/OS\ X\ Install\ ESD/"
  21. 10. Run "hdiutil unmount /Volumes/OS\ X\ Base\ System/"
  22. 11. Run "hdiutil convert yosemite.sparseimage -format UDZO -o yosemitefixed.dmg"
  23. 12. Add yosemitefixed.dmg as a live cd in virtual box
  24. 13. Change the chipset of your virtual machine to "PIIX3"
  25. 14. Start your VM, open Disk Utility within installer and create a new HFS+ partition on the virtual disk
  26. 15. Install it!
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  28. Via: http://forums.macrumors.com/showthread.php?p=19191255
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