How to install ClearOS on the Vault

Last Updated On October 16, 2018
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ClearOS Overview

According to the ClearOS home page at

“ClearOS is an open source software platform that leverages the open source model to deliver a simplified, low cost hybrid IT experience for SMBs. The value of ClearOS is the integration of free open source technologies making it easier to use. By not charging for open source, ClearOS focuses on the value SMBs gain from the integration so SMBs only pay for the products and services they need and value.”

ClearOS Home Page

Download ClearOS

There are multiple versions of ClearOS at different price points. In order to test ClearOS compatibility with The Vault, we used the ClearOS 7 Community Edition.

ClearOS Download Page

The ClearOS download page is located at

Download the ClearOS installation image using the following steps:

  • Browse to the ClearOS download page and select the desired edition of ClearOS
  • Note this example uses the ClearOS 7 Community Edition
  • Verify the download begins, if not select a mirror and download from there
  • Verify an image such as ClearOS-DVD-x86_64.iso that is about ~1.2 GB is downloaded

Burn the installation image to a USB drive

The easiest way to transfer the installation image to a USB drive is by using software called “Rufus” on Windows or “Etcher” on Apple OSX. See this link for detailed instructions on how to create a bootable USB drive using Rufus or Etcher.

Install ClearOS on The Vault

  • Verify that the Vault is powered down
  • Verify that the VGA or HDMI monitor is connected
  • Verify that the USB keyboard is plugged in
  • Insert the USB install drive into the another USB port on the Vault
  • While powering up the Vault, press “F11” key and hold it down until it boots to the BIOS and you see the boot options screen
  • Select the USB drive to boot from
  • Select Install ClearOS
  • Verify that the Vault boots and begins the installation process
  • Follow the installation prompts for language, keyboard, etc.
  • Verify the Installation summary is displayed
  • If desired, select Date & Time and set them appropriately
  • In this example, the Software Selection is the “Minimum Install”
  • Select System->Installation Destination
  • Select the mSATA SSD
  • Select DONE
  • If there is not enough space for the installation a window, will pop up. Select Reclaim space
  • Follow the prompts to delete old partitions and reclaim space
  • Select Begin Installation
  • While installation begins, select Root Password
  • Set the root password
  • Verify the installation continues and completes
  • Reboot
  • Verify the system boots to GUI with instructions to browse to the web interface, for example
  • Browse to the address displayed in the console
  • Verify the login page is displayed
  • Login as “root” with password that was set during the installation process
  • Verify the Wizard is displayed
  • Follow the prompts to
    • Select the Server Mode
    • Network Settings
    • Registration
    • Configuration
    • Marketplace
    • System->Dashboard
  • ClearOS is now successfully installed on The Vault

Example ClearOS Dashboard

If the system doesn’t reboot successfully after installation, it may be subject to the known issue described below. If so, follow the Rescue instructions below and resume the installation at the point that the error occurred.

Known Issue

There is a documented bug in ClearOS 7 that causes a kernel panic (crash) on some systems at reboot. It is the exact same bug as documented in CentOS 7-1804. Information and a workaround are available at this link. This bug may affect some versions of The Vault. If the newly installed ClearOS is affected by the known issue, it can be “rescued”. “Rescue” means that the new installation can be configured to avoid this bug. See the section below titled “Rescue ClearOS” for instructions to alleviate the issue.

Rescue ClearOS

Follow the instructions below to rescue the system from the known issue with ClearOS 7

  • Reboot the system from the Installation USB
  • Select Troubleshooting
  • Select Rescue ClearOS
  • Verify the system boots up
  • Verify the rescue options are displayed
  • Select “1” to continue
  • Verify the system is mounted at /mnt/sysimage
  • Hit Enter to get a shell
  • Verify the shell is at the prompt (sh-4.2#)
  • Change directory to /mnt/sysimage/etc/modprobe.d
  • Edit/Create the file snd.conf
  • Add the following line to snd.conf “blacklist snd-hdmi-lpe-audio”
  • Save the file
  • Reboot the system
  • Verify the system boots from the mSATA
  • Verify the system boots successfully
  • Continue the installation from the point of the failure and verify it completes successfully

System Compatibility

The table below shows the latest tested release of ClearOS on each of the Vaults.

VaultLatest Version Tested

At this point, ClearOS should be up and running on The Vault.  However, if you experience any issues, please feel free to reach out to us at: