I'm guessing that you're even looking at this because you either have an old Open Directory host that can't be upgraded past 10.7.5 Lion, and/or that you're in the process of upgrading and migrating.
MacOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks or Mountain Lion. Safari will download the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. Open the disk image, then open the.pkg installer inside the disk image. It will install an app named Install Version Name. Latest Version Of Itunes For El Capitan /hp-scanjet-5400c-driver-for-mac-os-yosemite/. To go along with Wednesday's release of macOS 10.13.2 High Sierra, Apple pushed out a fresh version of iTunes that comes packed with minor app fixes and improvements.
The only thing I use it for right now is syncing photos from my iPhone 6 to my OS X El Capitan. Stack Exchange Network Stack Exchange network consists of 177 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Okay, so to paraphrase your question and what you're faced with here, your choice involves having a consistent implementation of Open Directory using consistent software versions, or to override the existing version lockouts here and try to use different and variously incompatible and rather less-tested combinations of Open Directory versions across your authentication servers.
If access is important enough to have replicated Open Directory servers and likely replicated DNS and related, then get everything to at least Yosemite and probably preferably to El Capitan. Now if this was a business that was considering replication, then your business outage costs are probably far higher than the cost of a (new or used) Mac mini or other small box that can run Yosemite or El Capitan. For a less-critical environment or for a family environment, I'd likely do a reinstallation and a migration and get that OD data transferred over to the new server.
Or the shorter version: can I override the lockouts? Probably. But do you really want to do that? With your directory servers?
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Check compatibility
You can upgrade to OS X El Capitan from OS X Snow Leopard or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space.
MacBook introduced in 2009 or later, plus MacBook (13-inch, Aluminum, Late 2008)
MacBook Air introduced in late 2008 or later
MacBook Pro introduced in mid 2007 or later
Mac mini introduced in early 2009 or later
iMac introduced in mid 2007 or later
Mac Pro introduced in early 2008 or later
Xserve models introduced in early 2009
To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with OS X El Capitan, the installer will let you know.
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
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It takes time to download and install OS X, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
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Download OS X El Capitan
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of macOS.
If you still need OS X El Capitan, use this link: Download OS X El Capitan. A file named InstallMacOSX.dmg will download to your Mac.
Install the macOS installer
Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallMacOSX.pkg.
Follow the onscreen instructions, which will guide you through the steps necessary to install.
Begin installation
After installation of the installer is complete, open the Applications folder on your Mac, then double-click the file named Install OS X El Capitan.
Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both OS X and related updates to your Mac firmware.
Learn more
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- OS X El Capitan won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.
- You can use macOS Recovery to reinstall macOS.