![]() I explained the problem, they gave me a telephone appointment for the next day, and never called back. I called their support number (I live in Italy), a representative answered from Greece. macOS 12 (Monterey) or higher is best and supported, 10.11 (El Capitan) 11 (Big Sur) are unsupported but may work and 10.10 (Yosemite) and older will not run. Contact the software manufacture for assistance. The answer posted by bmike is far simpler and more practice, if your Mac can boot OS X installers from a flash drive and you have another Mac that can install the 'Install OS X El Capitan' application from the InstallMacOSX.dmg file downloaded from Apple. I was lucky - my son had a MacBook 2008 just like the one I was trying to upgrade, and he graciously lent me a working backup disk to do this with.Īpple's response to the problem was highly unsatisfactory. could not be installed on your computer trying to reinstall OS X for resale and it won't let me install El Capitan : No packages were eligible for install. I realize this is a rather lengthly installation procedure. erase the original user's data and put in your own info. 11 I tried to clean install OS X El Capitan on my Mac, but it won’t boot from the USB drive. Clone the USB disk with CCC to the Mac you're trying to upgrade. ![]() This basically comes down to your hardware is too. ![]() Clone the other Mac's HD on a USB disk with CarbonCop圜loner, making sure the clone is bootable (include a working copy of CCC in the process). Simply put, if your Mac isnt old enough to run the latest El Capitan operating system then it wont install. This is the article to follow - simply reinstalling will not work. That should result in installing mavericks and is in addition to the article linked to below. find a computer with installed MacOS 10.11. Use Internet recovery - Command + Option + R - then use its disk utility to erase your hard drive and then choose to reinstall the OS. The only solution that worked was complicated and klutzy: 1. Another error message popped up, and said that my installation file was "probably corrupted" (freshly donwloaded from the Apple Store). Setting back the date to 2015 did not work for me.
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