12/27/2021

Make Bootable El Capitan Installer

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In the following instruction, we show specifically how to make a Mac OS X bootable installation USB from El Capitan.DMG, Yosemite.DMG, Maverick.DMG or any OS X older versions on Windows PC. Plants vs zombies 1.0.40 dmg. Below are the steps needed to create an USB flash drive El Capitan bootable installer. Download the InstallMacOSX.dmg file by clicking on the OS X El Capitan 10.11 link in the Apple document 'How to get old versions of macOS'. These instructions assume this file has been downloaded to your /Downloads folder.

  1. Create Bootable Usb From Dmg El Capitan Download; Os X El Capitan Create Bootable Usb From Dmg; After a few minutes, the system creates a bootable USB drive that has the El Capitan installer. Enter the following path to the terminal. Take the El Capitan iso or dmg installer. Jan 24, 2018 Download Mac OS X 10.11 El Capitan.ISO – Download El.
  2. Here's how you can create a Mac OS X El Capitan bootable USB flash drive. OS X El Capitan is finally here, and if you're looking to install Apple's new desktop OS fresh from the ground up, then.
  3. Sep 30, 2015 To create a bootable El Capitan installer drive, you need the El Capitan installer from the Mac App Store and a Mac-formatted drive that’s big enough to hold the installer and all its data.
  4. A bootable ISO or bootable USB can be made from this installer. Now Create bootable USB for Mac OS El Capitan on Windows. Now it is the time to create a bootable USB installer using TransMac, To install Mac OS El Capitan on VirtualBox on Windows 10 you need a Bootable USB here you will learn the steps of creating a bootable USB installer for.

After a few minutes, the system creates a bootable USB drive that has the El Capitan installer. Enter the following path to the terminal. Take the El Capitan iso or dmg installer. Jan 24, 2018 Download Mac OS X 10.11 El Capitan.ISO – Download El Capitan.DMG installer – El Capitan Torrent download – Without using Apple Store ID. Make a Bootable El Capitan USB Drive for Mac from Windows PC After a couple days of random Google searches, I finally was able to put together enough information to figure out how to make a bootable USB drive to restore my Mac using a PC. Installing or booting every operating system needs to create bootable USB whether OS X or any other. Of course, we’ve to make an installer drive for installing Mac OS X. It may sound simple or an easy task but make sure that it is much more complicated from installing OS X El Capitan on VMware, Mac or PC because Mac OS switches harder to use than Windows or Linu.

https://anadoxin.org/blog/creating-a-bootable-el-capitan-iso-image.html

The installer you create can be used to install OS X El Capitan 10.11 on any eligible Mac computer. This is a more convent and less time consuming way to install OS X El Capitan on multiple machines, gives you a handy emergency disk, and enables a fresh OS X install.

It's very easy to create a bootable ISO image of El Capitan, if you have aworking El Capitan system installed on your machine.

Start with going to AppStore and installing El Capitan, so you'll have anapplication named Install El Capitan in your Application list. Then, youshould follow the steps below.

There is an installation image file inside /Applications/Install El Capitan.app, named InstallESD.dmg. It's not a bootable ISO that can be usedto install the system on a virtual machine, but we'll get there. Mount thisimage to some directory by using the hdiutil tool:

Make bootable el capitan installer app store

The -noverify and -nobrowse options are there to make mounting operationfaster and to make sure that Finder will not automatically pop up.

Now let's create a placeholder image of our ISO file.

This can take a while.

After an empty ISO file will be created, we need to mount it:

Then, we will use asr tool to populate the contents of our new drive:

The asr tool will automatically create a new mountpoint, /Volumes/OS X Base System. We're going to put some files into this directory.

First of all, remove an invalid link that won't be needed here:

Instead of this link, we need a proper directory, full of package files. We'regoing to copy this directory from the ESD image that we have mounted few stepsearlier.

We're going to copy some additional installer dependencies as well.

After that, we can unmount stuff we don't need anymore:

Last step is to convert our ISO file into the UDTO format.

Done. The ElCapitan3.iso.cdr can be renamed to ElCapitan.iso, and can beused in virtualization software like VirtualBox 5.

The method described above was found on forums.MacRumors.com(permalink).Thanks to colt2!

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.

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

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

Create Bootable El Capitan Usb From Dmg

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

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

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

Make Bootable El Capitan Installer

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.

Make Bootable El Capitan Installer Dmg

Navigate to Contents/SharedSupport ► Mount InstallESD.dmg file

Create Bootable Usb From Dmg El Capitan Mac

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.

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

Make Bootable El Capitan Installer

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

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.

Create Bootable El Capitan Installer From Dmg

How to create El Capitan USB installation disk with DiskMaker X

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.

Create Bootable Usb From Dmg El Capitan Download

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

Bootable

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

Make Bootable El Capitan Installer On Windows

Os X El Capitan Create Bootable Usb From Dmg

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

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Summary

How to make a bootable USB drive on Linux Mint (19.3) to allow you to install Mac OS X El Capitan on a MacBook with broken or corrupted recovery mode.

Background

I was recently given a 2011 MacBook Pro that had been “well-loved” and was therefore a mess of missing applications, ghost files and generally slow-as-hell. Since there wasn’t much worth saving I wiped it and initiated recovery mode in order to re-install OS X (El Capitan).

Having recently fixed a busted MacBook Air I had learned a bit about Recovery Mode (hold Command+R whilst pushing the Power button and release a few seconds after the machine wakes up). I tried that with this machine, and upon hitting “Reinstall MacOS X” was greeted with a prompt telling me it would take -2,148,456,222 days and 8 hours (an uncaught buffer overflow, me thinks). After about 30 seconds, a window pops up saying “Can’t download the additional components needed to install Mac OS X” and the installation gives up. The detailed error log says “Chunk validation failed, retrying” about 1000 times and eventually gives up altogether.

Further investigation suggests this may be something to do with security certificates having expired and hence the machine not being able to download the necessary files from Apple’s servers, but it seems the error can appear for all sorts of reasons. I also tried Internet Recovery (Command+Option+R) but that gave exactly the same error (and would also only have installed OS X Mountain Lion).

I then turned to attempting to make a bootable USB stick of OS X El Capitan from an image downloaded from Apple. I use Linux Mint on my main laptop and that was all I had available. Apple seem to assume everybody has a spare MacBook from which to create a bootable USB so they provide absolutely no documentation to help with this. I also couldn’t find a single guide online that worked from start to finish, so here I summarise what needs to be done.

Steps

As usual, this is all at your own risk 🙂

First you need to go to Apple’s OS Download Page and (step 4) get ahold of “InstallMacOSX.dmg” for El-Capitan. It’s a 6GB file so it might take a ‘lil while. You will also need to find a USB drive with at least 8GB capacity, and make sure it’s blank. The format doesn’t matter, because this procedure will format it correctly.

(In total you will need to use about 15-18GB of disk space by the time you’ve done all the extracting necessary, which shouldn’t be a problem for most computers but it was a challenge for my laptop with it’s 128GB SSD and dual boot Windows/Linux!)

Then you need to get a program called ‘dmg2img’

You can then extract the DMG

Now double click the .img file to mount it. In there is a InstallMaxOSX.pkg file. This requires a utility called “xar” to extract, which can be installed with these instructions (from https://www.oueta.com/linux/extract-pkg-and-mpkg-files-with-xar-on-linux/)

Then build and install with

Now you can extract the .pkg file. It will extract to the current working directory

Now, within the extracted files you will find something called InstallESD.dmg. This actually contains all the interesting boot files, but it isn’t a pristine image, so we can’t just burn it to a USB. Thankfully, a script exists to convert this DMG to a bootable usb, and it’s available here. It takes the DMG and writes everything directly to the USB in the right place.

ONE CAVEAT: When I ran this script on my InstallESD.dmg, it crashed because it didn’t recognise the checksum. I think this is because Apple updates the dmg’s anytime there is a security update for El Capitan so the checksum list isn’t updated. All I did was delete the checksum check from the script above. Essentially, just open the script and delete this section

Once I had done this, I ran the script with my USB connected (/dev/sdb for me, but CHECK YOURSELF with fdisk or similar) and after quite a while it finished copying.

Create Bootable El Capitan Installation Usb In Windows

I plugged the USB into the MacBook, and opened the startup menu by holding down Option whilst pushing the power button. This gave me the choice of booting from EFI, or choosing a WiFi network. Click on the EFI, and then follow the prompts to install OS X from the USB drive!

When you’re done, you may need to use Parted or a similar utility to re-format your USB as a normal drive again.

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