Contents Sharedsupport Installesd.dmg Missing

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Introduction

Apple officially released OS X 10.11 El Capitan operating system in September 2015 as an update through Apple App Store. This actualization will update core of your system and preserve your user data.

However, if you want to have a clean installation of El Capitan on your Mac you will need to create a special installation USB drive and in this article we will show you how.

After Beta 2 released, I download the installer from appstore and its named 'Install MacOS Beta.App'. Is this Beta 1 installer? Then I used terminal to create usb boot. Make sure it is in your downloads folder. If you still happen to have the el capitan DP1 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. Mount the InstallESD.DMG. To get the InstallESD.DMG, right mouse on “OS X Yosemite” select “Show Package Contents”. Go to Contents/SharedSupport, InstallESD.dmg should be there. Make a double click on InstallESD.dmg to make a volume of Yosemite installation on the left side: 3. Convert Yosemite.DMG to ISO format using Disk Utility.

It is indeed SharedSupport folder missing that causes this. In order to fix it, you should launch the small 'stub' installer, it will download all needed files to your home (/Users/username). You will need to cancel the installation after downloading ends of course. Jan 24, 2018 DMG, then convert High Sierra.DMG to High Sierra.ISO (available solutions in both Mac OS X and Windows). Mac Users obviously can not download High Sierra App from Apple store, then locate where to get the InstallESD.DMG from the installer in Applications folder: Right mouse on Install MacOS High Sierra app, then choose Show Packages Contents to reveal Contents.

Four ways how to create El Capitan USB installation flash drive:

Preparation - get OS X El Capitan installer and USB flash drive

Download El Capitan installer (Install OS X El Capitan.app in Applications folder) available in Mac App Store.

Prepare a flash drive with OS X Disk Utility. Format it with GUID Partition Table and name it as Untitled. The minimal capacity of flash drive must be 8 GB.

How to create El Capitan installation USB drive with createinstallmedia tool

The createinstallmedia is a command line tool distributed with OS X installer.

When you have prepared your USB flash drive and El Capitan installer is downloaded from App Store ► open Terminal and type command:

sudo /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install OS X El Capitan.app --nointeraction

In our case 'Untitled' is the name of USB flash drive! Replace 'Untilled' by name of your flash drive.
Wait a few minutes and your El Capitan installation USB drive will be prepared.

To install OS X El Capitan ► restart computer ► hold the Option key and select Installation USB drive from the menu.

How to create El Capitan USB installation with Terminal commands

When your USB flash drive is ready and El Capitan installer downloaded from App Store ► Open Terminal and type the following sequence of commands:

sudo hdiutil attach /Applications/Install OS X El Capitan.app/Contents/SharedSupport/InstallESD.dmg

Contents Sharedsupport Installesd.dmg Missing

sudo asr restore -source /Volumes/OS X Install ESD/BaseSystem.dmg -target /Volumes/Untitled -erase -format HFS+

sudo rm /Volumes/OS X Base System/System/Installation/Packages

sudo cp -a /Volumes/OS X Install ESD/Packages /Volumes/OS X Base System/System/Installation/Packages

sudo cp -a /Volumes/OS X Install ESD/BaseSystem.chunklist /Volumes/OS X Base System

sudo cp -a /Volumes/OS X Install ESD/BaseSystem.chunklist /Volumes/OS X Base System

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sudo cp -a /Volumes/OS X Install ESD/BaseSystem.dmg /Volumes/OS X Base System

hdiutil detach /Volumes/OS X Install ESD

Now wait until your bootable installation flash drive with OS X 10.11 El Capitan is made.

To install OS X El Capitan ► restart computer ► hold the Option key and select Installation USB drive from the menu.

How to create El Capitan USB installation with Disk Utility and Finder

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When your USB flash drive is ready and El Capitan installer downloaded from App Store ► Open Terminal and type:

defaults write com.apple.finder AppleShowAllFiles 1 && killall Finder

This command allows you to view hidden files in Finder.

Now Open Finder ► Applications ► Install OS X El Capitan.app ► right click ► Select Show Package Contents option.

Navigate to Contents/SharedSupport ► Mount InstallESD.dmg file

Open OS X Install ESD archive in Finder and mount BaseSystem.dmg archive

Connect USB drive and open Disk Utility (/Applications/Utilities)

Select the USB drive from the list of disks, select Restore tab and pick Select OS X Base System archive as a source and USB flash drive as the destination. When ready click on Restore button.

After the Restore process is finished, open Finder ► open USB drive (OS X Base System) ► go to the System/Installation folder and select Packages file and delete it.

Contents Shared Support Installesd.dmg Missing Files

Open OS X Install ESD volume in Finder, select Packages folder and copy them to System/Installation folder on USB drive.

Also copy BaseSystem.chunklist and BaseSystem.dmg files from InstallESD.dmg volume to root of USB flash drive (OS X Base System).

Contents Shared Support Installesd.dmg Missing File

Now your El Capitan installation USB drive is prepared and ready for use.

To install OS X El Capitan ► restart computer ► hold the Option key and select Installation USB drive from the menu.

Contents Sharedsupport Installesd.dmg Missing

How to create El Capitan USB installation disk with DiskMaker X

Contents Shared Support Installesd.dmg Missing Windows

Support

DiskMaker X tool is Wizard like tool that allows you create OS X installation disk. Download DiskMaker X to your Mac and copy it to Applications folder.

When you have prepared your USB flash drive and El Capitan installer is downloaded from App Store ► open DiskMaker X.

Select version of OS X (in our case El Capitan)

Select copy of OS X installation app

Select USB drive that will be used for USB installation

What Is Installesd.dmg

And wait a few minutes till the the DiskMaker X finish creating process.

Contents/sharedsupport/installesd.dmg Missing

To install OS X El Capitan ► restart computer ► hold the Option key and select Installation USB drive from the menu.