DVD DL, Mac OS X 10.11 El Capitan Full OS Install Reinstall Recovery Upgrade. Latest certificate (expires ). Please CHECK twice if your Mac model is compatible with this macOS!! If you are not 100% sure please check the pics or message me your mac model and year and I can tell for sure if would work or not! Jul 05, 2021 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. Os x could not be installed on you computer. No packages were eligible for install. What i did so far:-I rebuilt another usb drive from a new El Capitan freshly downloaded from the App store.-I formatted the hard drive, again.-I re tried to install but still the same.-I then held command+r and tried to install from there but I get the same issue. OS x could not be installed on your computer el capitan 100% solution.Step 1: Check whether you have the same issue. Open the terminal.Step 2: Check the date. Go to the Applications folder. Open the program called “Install OS X El Capitan”. Follow the on-screen instructions. If this program is missing or will not run, then move it to the trash and empty the trash, followed by re-downloading it from the App Store. An alternative approach is to create a dedicated installation drive from the El.
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Dear Friends,
I am unable to install OS X El Capitan on my MacBook Pro running 10.6.8. I downloaded the OS X El Capitan from App Store and when I follow the installation instructions, I get this error 'This disk cannot be used to start up your computer'.
I referenced the details mentioned here: https://support.apple.com/en-us/HT203482 (Installer reports 'OS X could not be installed on your computer' or 'This disk cannot be used to start up your computer'), and the problem I am having is that I don't have a Partition on my hard disk. Unfortunately, I do not have a 'startup disk' either and thus I am not sure how to go about installing OS X El Capitan at this time. The instructions says 'If possible, back up and reformat the target disk before installing'.
I do have External Hard disk that I can use to create a backup using Time Machine, but I don't know what to do after that. Should I also copy the OS X El Capitan installation file that currently exists on my Mac Internal Hard Drive on the External Hard Disk? What should I do after I create backup on external hard drive? I have lot of data and software on my Mac and don't want to lose them all in the process of formatting the internal hard drive.
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I am complete n00b with the upgrade and need assistance.
Many thanks!!!
MacBook Pro, Mac OS X (10.6.8)
Posted on May 19, 2016 8:52 PM
; Date: Sun Oct 16 2016Tags: Mac OS X
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.
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.
To understand the second command, go to a terminal window and type 'man date'.
In the synopsis section you'll see this as an option for the 'date' command:
That's a little obtuse, but further down the manpage is this key:
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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.
Afterward I closed the Terminal window and was able to successfully install Mac OS X on the computer.