SoftRAID version 5 is fully compatible with Mac OS X 10.10 Yosemite

SoftRAID version 5 has been extensively tested with Mac OS X 10.10 Yosemite. All of the features you love in SoftRAID will continue to work after you upgrade.

Installing Mac OS X 10.10 Yosemite onto a SoftRAID volume

The Mac OS X Installer for Mac OS X 10.10 recognizes all SoftRAID volumes as bootable. You can use the Mac OS X Installer to upgrade or install Mac OS X on a SoftRAID volume. This works with all RAID levels.

SoftRAID version 4 does not support Mac OS X 10.10 Yosemite

SoftRAID version 4 will not work with Mac OS X 10.10 Yosemite (or any OS X later than 10.10). Apple has made significant changes to the Mac OS X since version 4 was first released in 2009. These changes prevent parts of SoftRAID version 4 from working correctly.

Make sure you upgrade to SoftRAID version 5 before installing Mac OS X 10.10 Yosemite.

SoftRAID volumes not showing up when running OS X 10.10 Yosemite

Mac OS X 10.10 Yosemite requires all drivers to be code signed, a cryptographic process which detects modification of a driver. When running Yosemite, if a driver has been modified, the OS refuses to load it. You can find a fix for this here: Getting SoftRAID volumes to appear on Mac OS X 10.10 Yosemite.

Mac won’t boot up from SoftRAID startup volume running OS X 10.10 Yosemite

This is another issue stemming from Mac OS X 10.10 Yosemite requiring all drivers to be code signed (see immediately above). When running Yosemite, if a driver has been modified, you may no longer be able to boot your Mac if your start volume is a SoftRAID volume. You can find a fix for this here: Fixing a Mac which no longer starts up from a SoftRAID volume with Mac OS X 10.10 Yosemite.

Getting SoftRAID volumes to appear on Mac OS X 10.10 Yosemite

If your SoftRAID volumes are not appearing, the most likely cause is that the SoftRAID driver on your Mac has been modified by the OS or a third party utility.

To fix this problem, follow the steps below to download and install a fresh copy of the SoftRAID application. After installing the new driver copy, your volumes will appear.

Why a fresh copy? Sometimes the SoftRAID driver gets modified, even when it is inside the SoftRAID application. Downloading a fresh copy ensures that you are starting with an unmodified copy of the driver.

For more information on what may have caused your SoftRAID driver to be modified, please read the relevant FAQ.

Steps to get missing volumes to appear:

  1. Download a new copy of SoftRAID. This ensures that the driver in your SoftRAID application had not been modified. (Some third party utilities modify the copy of the driver in the SoftRAID application each time you run them).
  2. Copy the SoftRAID application to your Applications folderAfter downloading the latest copy of SoftRAID from our web site, copy the SoftRAID application to your Applications folder. You should delete all other copies of the SoftRAID application in your Applications folder to avoid confusion.
  3. Double click the SoftRAID application to launch itSelect Applications from the Go menu to display the contents of your Applications folder. Double click on the SoftRAID application to launch it.
  4. Select the tile for your startup volumeGo to the list of volumes on the right side of the main window and click once on the tile which corresponds to your startup volume. It will have contain the text “(Mac OS X 10.10 startup)” in the top line of the tile.
  5. Select Reinstall SoftRAID driver… from the Volume menuThis will install a fresh, unmodified copy of the SoftRAID driver in your system.
  6. Quit SoftRAID
  7. Restart your Mac
  8. Your SoftRAID volumes will now appear

Fixing a Mac which no longer starts up from a SoftRAID volume with Mac OS X 10.10 Yosemite

If your Mac no longer starts up from a SoftRAID volume, the most likely cause is that the SoftRAID driver on your Mac has been modified by the OS or a third party utility. If you install a new, unmodified, copy of the SoftRAID driver onto this volume, your Mac will be able to startup normally.

You will need to have a second startup volume to fix your original SoftRAID startup volume. This startup volume must contain Mac OS X 10.10 Yosemite.

For more information on what may have caused your SoftRAID driver to be modified, please read the relevant FAQ.

Steps to fixing OS X 10.10 startup issue:

  1. Turn your computer offMake sure your Mac is turned off, before you continue.
  2. Attach a extra disk which contains a startup volume with Mac OS X 10.10 YosemiteAttach a second disk with a volume containing Mac OS X 10.10 Yosemite. If you don’t have one, you can create one using any disk, even a USB thumb drive (it must be at least 16 GB in size). Just follow the Mac OS X 10.10 Yosemite installation instructions on the Apple web site.
  3. Startup your Mac from the volume on the extra diskImmediately after pressing the power button, hold down the Option key. This will give you a list of volumes you can start your Mac with. Select the startup volume on your external disk which contains Mac OS X 10.10 Yosemite.
    Note: If you are using an Apple Wireless Keyboard, you will have to wait until right after the startup chime before you hold down the Option key. If you hold it down too early, you will not see the list of available startup volumes.
  4. Download a new copy of SoftRAID. You should download a new copy SoftRAID. This ensures that the driver in your SoftRAID application had not been modified. (Some third party utilities modify the copy of the driver in the SoftRAID application each time you run them).
  5. Copy the SoftRAID application to your Applications folderAfter downloading the latest copy of SoftRAID from our web site, copy the SoftRAID application to your Applications folder. You should delete all other copies of the SoftRAID application in your Applications folder to avoid confusion.
  6. Double click the SoftRAID application to launch itSelect Applications from the Go menu to display the contents of your Applications folder. Double click on the SoftRAID application to launch it.
  7. Select the tile for your SoftRAID startup volumeGo to the list of volumes on the right side of the main window and click once on the tile which corresponds to your original startup volume, the one which no longer works. It will have contain the text “(Mac OS X 10.10)” in the top line of the tile.
  8. Select Reinstall SoftRAID driver… from the Volume menuThis will install a fresh, unmodified copy of the SoftRAID driver in your system.
  9. Quit SoftRAID
  10. Select System Preferences… under the Apple menu
  11. Select the Startup Disk item in the System Preferences
  12. Select your SoftRAID volume in the list of available startup volumes
  13. Click the Restart button
  14. Your Mac will now startup from your SoftRAID volume