a bootable USB drive running an OSX installer? Is one more fool proof or easy to do than the other?ĭoes the Recovery partition on the target Mac need to be intact in order for this method to work? I think my partition is corrupted because the computer boots directly into Internet Recovery Mode when I hold Command-R at startup. Am I correct that these are just two ways of getting the same result, i.e. It requires 1) a second functioning Mac using High Sierra to create the install media with Terminal and 2) a USB flash drive with at least 12 GB available. The second method is to use another Mac to create an install image using Terminal. The method is summarized in a comment in this Apple Community discussion thread This method requires 1) a functioning second Mac for running DiskMakerX and 2) a USB drive with at least 12 GB available. One way is to use DiskMakerX to create a bootable USB drive with a downloaded install image of the OSX loaded on it.
I found two ways to go about doing this, but I have questions. I’m trying to create a bootable USB flash drive to re-install Mac OSX High Sierra on my late 2013 27” inch iMac (3.2GHz/8GB RAM/ 3TB HDD) running 10.13.6 High Sierra.
