MAKE A BOOTABLE USB FOR OSX INSTALL MACOS X

Make A Bootable Usb For Osx Install MacOS X

I tried that with this machine, and upon hitting вЂњReinstall MacOS XвЂќ was greeted with a prompt telling me it would take -2,148,456,222 days and 8 hours (an uncaught buffer overflow, me thinks). Boot macOS, Windows, and Linux in UEFI or legacy mode on Mac or PC.Having recently fixed a busted MacBook Air I had learned a bit about Recovery Mode (hold Command+R whilst pushing the Power button and release a few seconds after the machine wakes up). Since there wasnвЂ™t much worth saving I wiped it and initiated recovery mode in order to re-install OS X (El Capitan).unibeast alternative for windows UniBeast will now create the bootable USB. I was recently given a 2011 MacBook Pro that had been вЂњwell-lovedвЂќ and was therefore a mess of missing applications, ghost files and generally slow-as-hell. For all earlier versions of macOS, launch the App Store on your Mac, and search for the macOS version you want (this option is only available when running macOS High Sierra. If you're currently running macOS Mojave, click this link to find the Mojave installer in the App Store.

ItвЂ™s a 6GB file so it might take a вЂlil while. I also couldnвЂ™t find a single guide online that worked from start to finish, so here I summarise what needs to be done.As usual, this is all at your own risk рџ™‚First you need to go to AppleвЂ™s OS Download Page and (step 4) get ahold of вЂњInstallMacOSX.dmgвЂќ for El-Capitan. Apple seem to assume everybody has a spare MacBook from which to create a bootable USB so they provide absolutely no documentation to help with this. I use Linux Mint on my main laptop and that was all I had available. I also tried Internet Recovery (Command+Option+R) but that gave exactly the same error (and would also only have installed OS X Mountain Lion).I then turned to attempting to make a bootable USB stick of OS X El Capitan from an image downloaded from Apple. The detailed error log says вЂњChunk validation failed, retryingвЂќ about 1000 times and eventually gives up altogether.Further investigation suggests this may be something to do with security certificates having expired and hence the machine not being able to download the necessary files from AppleвЂ™s servers, but it seems the error can appear for all sorts of reasons.