#INSTALL OS X EL CAPITAN DOWNLOAD ON EXTERNAL SSD INSTALL#
If you are running Snow Leopard or Lion and would like to upgrade to High Sierra, you need to install El Capitan first. This version of OS X El Capitan is for users running OS X Snow Leopard or OS X Lion who would like to upgrade to macOS High Sierra. For example, your storage capacity is likely to be significantly less than your normal system disk, especially if you use a flash drive. Download OS X El Capitan for macOS 10.6.8 or later and enjoy it on your Mac. Of course, while these are some pretty good advantages, there are also some distinct disadvantages. Or you can take it with you to work or a friend’s house while keeping all your applications and files. Maybe you’re having problems booting into your Mac and you want to try to access the internal drive to do some troubleshooting or back up important files-this will let you do that. This allows you to take a fully-fledged macOS installation with you wherever you go, for use on any Sierra-compatible Mac. The method described here actually creates a fully functioning macOS Sierra installation on an external USB device. Keep in mind, this is not the same as using an external device to install macOS, which lets you install macOS from an external USB device. With the recovery drive created, attach it to your Mac and reboot with the Option key held down, and you should see it appear as an option in the boot menu. I just need a bootable version of El Capitan, or to install on an external hard drive so I can reboot my early 2008 machine. I am unable to open the El Capitan package to get the installer on my 2019 machine. The installer for OS X El Capitan will be downloaded to your Downloads folder as a disk image named InstallMacOSX.dmg. Enterprise administrators: Download from Apple, not a locally hosted software-update server. Ever wish you could take your Mac with you on an external drive? You can actually install macOS Sierra on an external drive, flash drive, or SD card, then use that device as your macOS system disk wherever you go. I've forwarded the early 2008 machine drives (unaware than getting the installer is going to be so challenging). Download on a Mac that is using macOS Sierra 10.12.5 or later, or OS X El Capitan 10.11.6.