El Capitan Could Not Be Installed

Hi, so I am try to upgrade to El Capitan (I know this sub isn't for beta related questions but from what I've researched this isn't a problem with the beta its a general issue), and while I have been updating I get this error: OS X could not be installed on your computer. Current version is 2.8.1 BUT won't install on OS X El Capitan unless it has been installed before upgrading. The problem seems to be that El Capitan does not allow the creation of the necessary folders in usr. If you installed it BEFORE updating to El Capitan then there is no problem. Please watch version 2 of this video here: the 'install failed' and 'No packages were eligible for install'. Best answer: If you have not touched the crucial ssd yet here’s what I would do: 1. Leave the OWC ssd installed, boot from your El Capitan usb installer, run disk utility and wipe the OWC again, then install Wl Capitan again. If something went wrong with the clone that would fix it. You would still have to copy your files from the old ssd. 'OS X could not be installed on your computer' I'm trying to install El Capitan onto a 2008 iMac. I'm installing it onto an SSD that has been installed in place of the internal optical drive using an iFixit enclosure.

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

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 This happens because the the installer certificates are no longer valid when checked against the clock of your mac.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.

  1. No packages were eligible for install. This is what it looks like in the installer. Upon seeing this I went 'HUH?' Because the installation was from a thumb drive I'd used many times to install Mac OS X (El Capitan) successfully. The above image came from an attempt to install El Capitan. I just got the following message.
  2. Nov 12, 2019 I was repeatedly getting 'Could Not Be Installed on your computer no packages were eligible for install' using both the internet el capitan install and this USB install. Thank you MIKX using terminal date just got me going!!
  3. Oct 01, 2015 This entry was posted in Troubleshooting and tagged 10.11, El Capitan, OS X, OS X 10.11 on October 1, 2015 by Topher Kessler. Post navigation ← Reasons to both install and avoid OS X 10.11 El Capitan Fix package managers not working after installing El Capitan →.

El capitan no packages were eligible for install. Posted by 22 days ago. El capitan no packages were eligible for install. Im in recovery mode and i keep getting the same popup despite going to terminal and typing 'date ' which failed then 'date ' which also failed.

El Capitan Failed To Install

; Date: 2016-10-16 15:41

Tags: Mac OS X

El Capitan Unable To Install

A key step for upgrading the disk on a MacBook Pro is to install a new operating system on the new drive, and then use Migration Assistant to copy over the old data. Depending on how you went about the work, installing Mac OS X on the new system may give you a message: OS X could not be installed on your computer. No packages were eligible for install.

This is what it looks like in the installer. Upon seeing this I went 'HUH?' because the installation was from a thumb drive I'd used many times to install Mac OS X (El Capitan) successfully.

The above image came from an attempt to install El Capitan. I just got the following message, macOS could not be installed on your computer, while trying to install macOS High Sierra.

In both cases there was the same cause. In the El Capitan case, as I say in the next paragraph, the hardware clock had reset to zero because it did not have a battery pack. In the High Sierra case, I had performed a hardware reset of the computer in an attempt to fix a bootup problem. I had found advice to disconnect the battery, the power supply, then hold down the power key for a few moments. In both cases the hardware clock had been reset to zero, and macOS refused to boot.

Could

After some yahoogling (duckduckgoing) I came across a simple solution. This particular computer had been running with no battery, and therefore the hardware clock was reset to zero, and Mac OS X had a test against that condition.

We've discussed elsewhere the process to install Mac OS X onto a computer, and transfer information from an old drive. It's during that process when the above message appears. A couple steps prior is where you can take action to correct the problem.

At this step, click on Terminal ..

Then change the operating system date.

When running this particular Terminal session, you are ROOT meaning you can change anything on the computer. Normally we type 'date' at the command line just to find out the current day/month/year/time. But, the date command can be used to change the time registered in the system clock.

As I said above, for this particular computer the system clock had been reset to zero because the battery pack had been changed. In fact, the computer had run without a battery for many months because the old battery had gone bad.

As you see on the screen, the date had been January 1, 2001. I then changed the system date to the current time as of the writing of this posting.

El Capitan Could Not Be Installed In The Wall

To understand the second command, go to a terminal window and type 'man date'.

Install

In the synopsis section you'll see this as an option for the 'date' command:

No Packages Were Eligible For Install Mac El Capitan Dock

That's a little obtuse, but further down the manpage is this key: Error failed building wheel for mysqlclient macos.

In other words, the date code for this purpose is month-day-hour-minutes-year .. hence, that's what I entered and it changed the system date to match.

No Packages Were Eligible For Install Mac El Capitan

No Packages Were Eligible For Install Os X El Capitan

Afterward I closed the Terminal window and was able to successfully install Mac OS X on the computer.

El Capitan Could Not Be Installed

No Packages Were Eligible For Install Mac El Capitan Update

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