- #How to make a bootable usb mac el capitan install
- #How to make a bootable usb mac el capitan iso
- #How to make a bootable usb mac el capitan mac
However, unlike any other app, if you run the OS X installer from that default location, the app deletes itself after it’s done installing OS X.
#How to make a bootable usb mac el capitan mac
In this respect, the OS X installer is just like any other app you buy from the Mac App Store.
#How to make a bootable usb mac el capitan install
Like all recent versions of OS X, El Capitan is distributed through the Mac App Store: You download an installer app (called Install OS X El Capitan.app) to your Applications folder. At best, that’s a hassle at worst, it’s hours of waiting before you can get started.)Īs with previous versions of OS X, it’s not difficult to create a bootable installer drive, but it’s not obvious, either. ( OS X Recovery lets you repair your drive and reinstall OS X, but to perform the latter task, you must wait-each time you use it-for the entire 6GB of installer data to download. And if your Mac is experiencing problems, a bootable installer drive makes a handy emergency disk. If you want to erase the drive on a Mac before installing El Capitan, or start over at any time, you can use a dedicated installer drive to boot that Mac, erase its drive, and then install the OS (and subsequently restore whatever data you need from your backups). If you need to install El Capitan on multiple Macs, using a bootable installer drive is faster and more convenient than downloading or copying the entire installer to each computer. In other words, you no longer have the same safety net or convenience.īecause of this, I recommend creating your own bootable El Capitan (OS X 10.11) installer drive on an external hard drive or USB thumb drive. But to install or reinstall a recent version of OS X, you must either download a non-bootable installer from the Mac App Store or (via OS X’s invisible, bootable recovery partition) download 6GB of installer data from Apple’s servers during the installation process. Mv /tmp/ElCapitan.cdr ~/Desktop/ElCapitan.When OS X shipped on a DVD a good number of years ago, you always had the convenience of a bootable installer-an OS X installer that could be used to boot your Mac if its own drive was having problems. I believe the last line should in fact be: Hdiutil convert /tmp/ElCapitan.sparseimage -format UDTO -o /tmp/ElCapitan Hdiutil resize -size `hdiutil resize -limits /tmp/ElCapitan.sparseimage | tail -n 1 | awk ''`b /tmp/ElCapitan.sparseimage Hdiutil attach /tmp/ElCapitan.sparseimage -noverify -nobrowse -mountpoint /Volumes/install_build Hdiutil create -o /tmp/ElCapitan -size 6789m -layout SPUD -fs HFS+J -type SPARSE
#How to make a bootable usb mac el capitan iso
# Rename the ElCapitan ISO Image and move it to the desktop Hdiutil convert /tmp/ -format UDTO -o /tmp/ElCapitan.iso # Convert the ElCapitan ISO Image to ISO/CD master (Optional) Hdiutil detach /Volumes/OS\ X\ Base\ System/ Rm /Volumes/OS\ X\ Base\ System/System/Installation/PackagesĬp -rp /Volumes/install_app/Packages /Volumes/OS\ X\ Base\ System/System/Installation/Ĭp -rp /Volumes/install_app/BaseSystem.chunklist /Volumes/OS\ X\ Base\ System/BaseSystem.chunklistĬp -rp /Volumes/install_app/BaseSystem.dmg /Volumes/OS\ X\ Base\ System/BaseSystem.dmg # Remove Package link and replace with actual files # Restore the Base System into the ElCapitan Blank ISO ImageĪsr restore -source /Volumes/install_app/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erase Hdiutil attach /tmp/ -noverify -nobrowse -mountpoint /Volumes/install_build Hdiutil create -o /tmp/ElCapitan.cdr -size 7316m -layout SPUD -fs HFS+J # Create the ElCapitan Blank ISO Image of 7316mb with a Single Partition - Apple Partition Map Hdiutil attach /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/SharedSupport/InstallESD.dmg -noverify -nobrowse -mountpoint /Volumes/install_app Since I've been looking for this for a couple of days, I figured I'd share it. With the release of El Capitan, the script to create a Bootable ISO for VMware of Mavericks and Yosemite does not seem to work anymore on the El Capitan official release.īelow is what I found that worked.