So don’t forget to backup your data first.įor more about OS X 10.11 and its new features, check out our handy El Capitan Compatibility and Transition Guide. It should be noted that DiskMaker X erases the volume or the drive you chose, according to the options you chose. All you need is an 8 GB (minimum) USB thumb drive, a USB, FireWire, or Thunderbolt drive or an SD-Card the OS X 10.11 El Capitan Installer from the App Store (once the download is complete the installer file will appear in the Applications folder - do not move it) and the DiskMaker X installer. Like the previous versions, DiskMaker X is free of charge (however, donations are accepted). Luckily, DiskMaker X helps fill the void by allowing you to make a bootable OS X 10.11 El Capitan USB install drive, making a task such as installing on several different machines easier.
So if you previously relied on DVD installs, you won’t be able to do so with this version. And as with previous OS X versions dating back to OS X 10.7, El Capitan is only available for install via download from the App Store. With OS X El Capitan, Apple has built on many of the changes that were brought on by Yosemite. UPDATE 09/2016: Create a Bootable macOS Sierra Install Drive with DiskMaker X UPDATE 09/2017: Create a Bootable macOS High Sierra Install Drive with DiskMaker X 7 (also feel free to throw a virtual tomato at me for being dumb.UPDATE 09/2018: Create a Bootable macOS Mojave Install Drive with DiskMaker X 8 I'm sure there has to be some little-documented way of actually accomplishing this. How do I create an OS X El Capitan installation media from an iMac running MacOS Monterey? The new iMac won't run the El-Cap installer package inside the. I have a brand new iMac running MacOS Monterey. Now I have an '09 iMac (iPaperweight) with no OS, and it won't let me download OS X from the App Store through recovery because apparently that's no longer available (?).īut. Turns out it didn't, and then I ruined it anyway by trying to change the partition size/filesystem type from 64 GB OS X Journaled to ExFAT 12 GB (I'm not sure why on earth I thought that would work and not erase the partition. So, I did the dumb, I erased the HDD on an '09 iMac (El Capitan) without verifying that the third-party-created thumbdrive installer (DiskCreatorX) actually worked as a bootable drive on the machine.