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As with prior versions of OS X, the new version 10.11 “El Capitan” is available as a free purchase from the App Store, and should then download and run to allow you to upgrade your system. If all goes well, you should see the OS X installation window that instructs you to begin the upgrade process, but there may be instances where this does not appear, or does not work when you attempt the install.
First, the OS X installer should run automatically, but if not then you can try running it manually:
El Capitan Install Error No Packages Were Eligible For Install
- Go to the Applications folder
- Open the program called “Install OS X El Capitan”
- Follow the on-screen instructions.
Nov 15, 2019 In certain circumstances, such as when an installer is damaged, you'll see an alert that says the application can't be verified and may have been corrupted or tampered with during downloading.
Nov 12, 2019 After a good night's sleep I read a list o Mac OS/OSX versions, then realised that Mavericks is older than Yosemite, which I managed to install in 2016! Unfortunately, Yosemite kept booting into a lo res mode. Now plan to try and insttall El Capitan. I'll post about that in the El Capitan. Sep 30, 2015 The OS X 10.11 El Capitan installer from the Mac App Store in your Applications folder. The installer will delete itself when you install the operating system, but it can be re-downloaded if.
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 Capitan installer, and use that to install the upgrade. For this, you will need a spare external drive (USB drive, or hard drive) that is at least 8GB in size, and then perform the following steps:
- Attach the drive to your Mac
- Use Disk Utility to format it to HFS+ with a GUID partition scheme, naming it INSTALLER
- Open the OS X Terminal and run the following command (copy and paste all 5 lines):
![Packages Packages](/uploads/1/2/6/6/126602300/231150935.jpg)
Press Enter to run the pasted command, and supply your password when prompted (it will not show when typed). Note that if you get any errors, be sure your USB drive is formatted and named “INSTALLER” so the command will properly target it. You will also need to have first downloaded the OS X El Capitan installer from the App Store, and have this present in your Applications folder.
The Terminal may take a while to complete this step, but when done you can reboot your Mac and hold the Option key to show the boot menu, and then select the El Capitan installation drive you just created to run the installer and upgrade your Mac’s internal hard drive. Adobe flash for mac os catalina.
![Packages Packages](/uploads/1/2/6/6/126602300/377504132.jpeg)
If the procedure still fails with an error, then hopefully you have a full system backup ready, which you can restore to your Mac using the option to restore from a Time Machine backup in the OS X Recovery partition, or whatever cloning software you use. When done, attempt the above procedures to try again.