Installing El Capitan Still Waiting For Root Device

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Feb 10, 2017  OSX El Capitan Notebook Latitude E6430 Hi, have this PC: CPu: i5 3320 2.60Ghz Ram: 8Gb Graphics: Intel Graphics HD 4000 SSD: 256 GB. Ive tried to install OSX El Capitan, Yosemite and Maverick. Without result. With generic error: still waiting for root device. Oct 24, 2019 OS X El Capitan remains available for Mac computers that can't upgrade to macOS Catalina, Mojave, High Sierra, or Sierra, or that need to upgrade to El Capitan first. I find only updates of specific OS Xs here but not whole ISO file, which you can boot for the install. I have had licences of El Capitan on my Apple store but cannot login now to any Apple store. “Still waiting for root device” on a macbook pro mid 2009 with osx 10.11.6. Oct 24, 2019  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. Aug 12, 2013  right ok - so i am now getting a bit lost as the more i read the more it seems that the USB issues are geared towards USB3 in 10.11 however my board only has USB2 ports. I have tried the installer, using 2 different known good sticks, into EVERY port i have during the install and the result is the same 'Still waiting for root device'.

I'm afraid something is badly hosed. I recommend you do the following:

Install El Capitan from Scratch


Backup if possible before continuing.


  1. Restart the computer. Immediately after the chime hold down the Command and Rkeys until the Apple logo appears. When the Utility Menu appears:
  2. Select Disk Utility from the Utility Menu and click on Continue button.
  3. When Disk Utility loads select the volume (indented entry, usually Macintosh HD) from the Device list.
  4. Click on the Erase icon in Disk Utility's main window. A panel will drop down.
  5. Set the Format type to Mac OS Extended (Journaled.)
  6. Click on the Apply button, then wait for the Done button to activate and click on it.
  7. Quit Disk Utility and return to the Utility Menu.
  8. Select Reinstall OS X and click on the Continue button.


If the drive is badly hosed such that you cannot boot from the Recovery HD, then you need to do this:

Snow Leopard Erase and Install


Be sure you back up your files.


Installing El Capitan Still Waiting For Root Device Ra1nusb

  1. Insert Snow Leopard DVD into the optical drive and restart the computer.
  2. Immediately upon hearing the chime hold down the C key.
  3. Release the key when the Apple logo appears and wait for the loading to finish.
  4. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After Disk Utility loads select the out-dented disk entry from the side list (mfgr.'s ID and drive size.) Click on the Partition tab in the Disk Utility’s right window. Set the number of partitions to (1) from the drop down menu. Click on Options button and select GUID, click on OK, set the format type to MacOS Extended, Journaled. Finally, click on the Apply button.
  5. After formatting has finished quit Disk Utility. Continue with the OS X installation and follow the directions.
  6. When the installation has finished the computer will restart into the Setup Assistant. After you complete the Setup Assistant you will be running a fresh installation of Snow Leopard. Open Software Update and install the recommended updates.
  7. If you are planning to sell or give your computer away, then do the following: After you reformat your hard drive and reinstall Snow Leopard, the computer restarts to a Welcome screen. To leave the Mac in an OOTB (Out Of The Box) state, don't continue with the setup. Instead, press Command and Q keys to shut down the computer. The Setup Assistant will guide the new owner through the setup process after he/she turns on the computer.
  8. Download and install Mac OS X 10.6.8 Update Combo v1.1. if needed. It is not needed if you are selling or giving away the computer.

From here you can download and install El Capitan from the App Store.

Sep 19, 2016 4:59 PM

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

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.

Installing El Capitan Still Waiting For Root Devices

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.

Installing El Capitan Still Waiting For Root Device Dev Mmcblk0p2

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

  • 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.