Download macOS

It provides python script to patch, yet unfortunately it does not work well in python3, after converted by 2to3.py, still have modules missing, print sytax and str on buffer API etc so just open command prompt with Admin right, then run win - install.cmd & win - update - tools.cmd, it will patch VMWare workstation for appleSMCTable about. 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. I’m trying to sell a 2009 MacbookPro. It’s the model MacbookPro5.5 and Apple supports macOS El Capitan 10.11 as latest available version. I’ve wiped all data from the installed SSD and had to boot from an external disk.
Get FetchMacOS and place it in a known folder.
Open
Command Promptand usecdto go to the known folder.Run
fetch-macos.exe -p PRODUCTID -o SharedSupportwherePRODUCTIDis the macOS package you want to download.
Edit Downloaded Files
Rename
InstallESDDmg.pkginside theSharedSupportfolder toInstallESD.dmgEdit
InstallInfo.plistusing WordPad (or another text editor) and remove thechunklistURLandchunklistidkeys for InstallESD as well as renameInstallESDDmg.pkgtoInstallESD.dmg(example here)
Write BaseSystem to USB
Format the USB drive using Boot Disk Utility. Select
DLandSave after DLfor Clover Bootloader Source,Cloverfor Format Options, and a200MB Boot Partition Sizefor Multi PartitioningExtract
4.hfsfromSharedSupportBaseSystem.dmg--> save to it's local folderRestore
4.hfsto the USB's second partition ---> 2nd partition becomes bootable 'OS X Base System'
Resize BaseStstem USB Partition
Open Paragon Partition Manager Free and resize the second partition of the USB drive to the full size allowed. Don't forget to apply the changes at the end.
Copy Additional Data
Open TransMac and navigate to the
HFS+ Volume/Install macOS High Sierra.app/Contentsfolder. Right click anywhere in the empty space on the RHS pane and selectCopy Here.In the next stage, select the
SharedSupportfolder we created earlier as theFiles and Folders to be copied to the Mac Volume.


It's very easy to create a bootable ISO image of El Capitan, if you have aworking El Capitan system installed on your machine.
Contents/sharedsupport/installesd.dmg Missing
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:
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.
Contents Shared Support Installesd.dmg Missing Windows
The method described above was found on forums.MacRumors.com(permalink).Thanks to colt2!