This article provides instructions to enable kernel extensions that have been blocked during software installations in macOS.
Apple introduces a new security mechanism in macOS High Sierra 10.13 that requires a user’s approval before loading third-party kernel extensions (kexts). Several LaCie programs are impacted by this macOS feature. Please see below for the list of impacted applications:
||macOS alert message|
|LaCie RAID Manager||2big Dock Thunderbolt 3|
6big Thunderbolt 3
12big Thunderbolt 3
5big Thunderbolt 2
8big Thunderbolt 2
|"Marvell Semiconductor Inc"
|LaCie Desktop Manager||Rugged Family*|
"LaCie Ltd"During software installation macOS won't prompt and alert message, but it still needed to be enabled under Security & Privacy. For additional information please visit here.
|LaCie Private-Public||Rugged Family*|
|Toolkit||Rugged SECURE||"Seagate Technologies LLC"|
Click OK, then proceed to Security & Privacy to enable the kernel extension in order to complete the installation.
Note: It’s important to know that once you press OK , you have 30 minutes to approve the software.
See Instructions to enable a blocked software:
Click on Apple icon
Open System Preferences
Go to Security & Privacy
Click on the Allow button displayed in front of the blocked software
Note: If you may not be able click on Allow button, you need to unlock the pane. Click on lock icon at the bottom of the pane, then enter your admin password.
Click on Restart to restart computer right away or OK if you prefer to manually restart your computer.
If the System software is not listed under the general tab of macOS Security and Privacy, it’s recommended to reinstall the software and immediately proceed with the steps 1 to 5.
It’s recommended to install the latest version of LaCie RAID Manager LRM v18.104.22.168 or later
Make sure that “Marvell Semiconductor Inc” kernel extension is enabled under the macOS Apple icon>System Preferences>Security & Privacy.
If kernel extension is not listed under Security and Privacy, please reinstall LRM v22.214.171.124 or later, don’t restart the computer, and immediately go to System Preferences>Security & Privacy to enable the “Marvell Semiconductor Inc” kernel extension.