How to Burn OS X Mountain Lion to a DVD

1. at Disk Utility

"File->New->Blank Disk Image" 선택.

Name: Mountain Lion DVD

Size: 4.6GB

Format: Mac OS Extended (Journaled) 

Partitions: Single partition - CD/DVD

Image Format: read/write disk image

2. at Finder

"Applications->Install OS X Mountain Lion" 선택, 오른쪽 클릭 메뉴에서 "Show Package Contents" 선택.

"Contents->SharedSupport" 안에 있는 "InstallESD.dmg"를 더블클릭하여 마운트.

3. at Finder

"Mountain Lion DVD"와 "Mac OS X Install ESD"가 마운트 되어 있는 것을 확인.

4. at Terminal

 cp -Rv "/Volumes/Mac OS X Install ESD/*" "/Volumes/Mountain Lion DVD/" 

5. 복사가 끝나면...

새로 만든 "Mountain Lion DVD.dmg" 디스크 이미지를 이용하여 DVD를 구우면 됨.

출처 - http://alexcline.net/2012/07/28/how-to-install-os-x-mountain-lion-from-a-single-layer-dvd/