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1. No Packages Were Eligible For Install Os X Operating System
2. No Packages Were Available For Install
3. No Packages Were Eligible For Install Os X Without
4. No Packages Were Eligible For Install Os X Version
5. No Packages Were Eligible For Install Os X El Capitan App Download

OS X could not be installed on your computer.
No packages were eligible for install. Contact the software manufacturer for assistance.
Quit the installer to restart your computer and try again

Apr 18, 2016 “No packages were eligible for install” is a message that appears when attempting to install OS X El Capitan on older macs. MacBooks are a very popular purchase in Melbourne and around Australia so it is important to understand the reasoning behind why this message appears. 'OS X could not be installed on your computer. No packages were eligible for install.' Is there something I'm missing here? It used to be perfectly functional under OS X Yosemite. Any help appreciated. OS X could not be installed on your computer. No packages were eligible for install. Contact the software manufacturer for assistance. Quit the installer to restart your computer and try again. If your macOS Sierra won't install or you face the same problem with other versions, then don't worry. In this guide, we will teach what to do when macOS could not be installed on your computer. Restart and Reinstall Mac. Check Mac Date & Time. Free Up Mac Space.

Oh dear… When trying to install OS X 10.11 (El Capitan) you may encounter this message. This happens because the the installer certificates are no longer valid when checked against the clock of your mac.

Don’t panic though as this is easily fixed using Terminal, so don’t restart immediately.

• Click Utilities on the menu bar
• Select Terminal
• Type date 062112422016
• Exit Terminal
• Click Restart

When you restart the mac and try the installer again it will now believe the certificates are valid and will continue as it should.

Here in Belgium schools are locked down due to #coronavirus. With the school of my two oldest kids now switching to remote teaching, I took the time to set up my old MacBook Pro (model late 2008) for my two oldest kids to use. That didn’t go without any hiccups though: the OS X installer refused to install …

The MacBook I had shelved a long time ago was still running OS X Mavericks. As that version was quite showing its age – and didn’t seem to support 2FA for use with my Apple ID – I decided to upgrade it to El Capitan, of which I still had the installer app lying around. I opened up the installer, it prepared some things, and nicely asked to reboot. Upon reboot the installer was ready to install, but when actually starting it greeted me with this error message:

OS X could not be installed on your computer.

No Packages Were Eligible For Install Os X Operating System

No packages were eligible for install. Contact the software manufacturer for assistance. Quit the installer to restart your computer and try again.

Uhoh! Restarting the MacBook, as suggested, did nothing: the installer kept showing that same error message. Trying to change the startup disk to get back into Mavericks (by pressing ⌥+R upon starting the machine) also didn’t help, as I could only launch the installer and a recovery partition. Yes, the machine was actually stuck in a loop where it would only launch the installer and the installer wouldn’t install.

~

With a Google Search Coupon in hand I found that the installer refuses service because the certificate it was signed with (some time back in 2015, when El Capitan was released) got expired by now.

No Packages Were Available For Install

Thankfully one can easily circumvent this expiration by simply changing the date of your system. You can do this before starting the installer, or through a Terminal if the installer is already loaded (as it was in my case).

1. In the OS X Installer, choose Utilities > Terminal.
2. Enter date 020101012016 and press Enter.
3. Quit Terminal and reboot to retry the installation.

💡 In this particular Terminal you’re running as root, so no need for sudo here 😉

Here the date is being set to Feb 1st, 2016. You might need to tweak the date a bit depending on when you downloaded the installer originally (as it might be signed with a different certificate). Be sure to set it no earlier than the release date of the OS X version you’re trying to install.

No Packages Were Eligible For Install Os X Without

💡 The syntax for the date command is a bit counterintuitive. Choosing your own date will require some puzzling from your end:

~

Later versions of OS X, such as High Sierra, have become a bit smarter: they give you the warning upfront – when first launching the Installer.app – instead of after having prepared your disk for installation.

No Packages Were Eligible For Install Os X Version

~

No Packages Were Eligible For Install Os X El Capitan App Download

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