I want to create a bootable copy of Mountain Lion, and I've been reading instructions on various forums, and they all say to copy the installESD.dmg file that's located within the Install OS X Mountain Lion.app. I was wondering, what is the difference between the two? I know once you install OS X, the app is deleted. What wouldbe the difference between copying Install OS X Mountain Lion to the USB vs copying InstallESD.dmg to the USB?
- I'm trying to extract the InstallESD.dmg image so that I can create a USB key any time I want to in the future, to recover/boot my 2011 iMac. I would think this would be no problem at all, since the machine obviously is authorized to run Lion.
- Aug 03, 2019 Making a High Sierra USB Installer Entirely From Scratch in Windows. This is a proof of concept tutorial, to show it's possible to create a vanilla High Sierra installer, entirely from scratch, in Windows (even without App Store downloaded 'Install macOS High Sierra.app' from a real Mac ). @PikeRAlpha's link to Apple's Software Catalog provides us with all the URLs necessary to download.
Extract InstallESD.dmg Time it takes 2nd InstallESD.dmg 3.hfs is the main Basesystem in 3.hfs Extract BaseSystem.dmg 3.hfs basesystem to restore to installation USB flash No Users After Upgraded To macOS High Sierra; How To Join Apple Ecosystem with Windows Laptops and Desktops; macOS Catalina On Supported Windows Laptops and PCs.
Thanks very much 🙂
Burn Dmg To Usb Windows
MacBook Pro (13-inch Late 2011), OS X Mountain Lion
How To Extract Installesd Dmg 2
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