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Dell ThinOS 2211, 2208, and 2205 Administrator’s Guide

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Convert Ubuntu with DCA to ThinOS 2205 or later versions

Prerequisites

Table 1. Supported conversion scenarios
Platform Ubuntu version DCA-Enabler version
Latitude 3420 20.04 1.5.0-14 or later
OptiPlex 5400 All-in-One 20.04 1.5.0-14 or later
Latitude 3440 22.04 1.7.0-20 or later
Latitude 5440 22.04 1.7.0-20 or later
OptiPlex All-in-One 7410 22.04 1.7.0-20 or later
Ensure that DCA-Enabler is installed on your Ubuntu devices according to above table. For details on how to install DCA-Enabler in Ubuntu operating system and upgrade it, see Dell Wyse ThinOS Migration Guide at www.dell.com/support
  • NOTE:The Ubuntu device must have a factory-installed Ubuntu operating system. If you have custom installed the Ubuntu operating system, you cannot convert it to ThinOS 2205 or later versions.
    NOTE:There are some languages that do not support the conversion from Ubuntu to ThinOS 2205. Dell Technologies recommends you to set Ubuntu to English language for the conversion process.
  • Wyse Management Suite version 3.7 or later versions must be used to convert to ThinOS 2205 or later versions.
  • Ensure that you have connected the device to the external power source using the power adapter.
  • Ensure you have enough ThinOS Activation devices licenses on Wyse Management Suite 3.7 or later versions.
  • Create a group in Wyse Management Suite with a group token.
  • The ThinOS Activation devices license number of Wyse Management Suite must be larger than the Ubuntu device number. If it is not, you cannot create the Advanced Policy for conversion.
  • The Ubuntu devices must be registered to Wyse Management Suite as generic clients. For details on how to register generic clients to Wyse Management Suite, see Dell Wyse ThinOS 2303, 2211, 2208, and 2205 Migration Guide at www.dell.com/support.
  • Ensure you have downloaded the Ubuntu to ThinOS conversion image.
  • Extract the Ubuntu to ThinOS conversion image to get the Conversion Installer file DTOS_Ubuntu_Installer_x.x-dtosx-amd64_signed.tar.gz and ThinOS image ThinOS_YYMM_9.x.pkg.
    NOTE:The ThinOS image ThinOS_YYMM_9.x.pkg can be used for downgrading in the future.

Steps

  1. Go to Apps & Data > App Inventory > Generic Client, and click Add Package file.
  2. Upload the Conversion Installer file DTOS_Ubuntu_Installer_x.x-dtosx-amd64_signed.tar.gz
  3. Go to Apps & Data > OS Image Repository > ThinOS 9.x, and click Add Firmware file.
  4. Upload the ThinOS image ThinOS_YYMM_9.x.pkg.
  5. Go to Apps & Data > App Policies > Generic Client, and click Add Advanced Policy.
  6. Enter the policy name, select the group in which Ubuntu device has been registered, and select Generic Client as OS type.
  7. Click Add app, and select the Conversion Installer file that was uploaded before from the drop-down menu.
  8. Click Add app again, and select the ThinOS image file that was uploaded before from the drop-down menu.
  9. Select all the platform that you want to convert in the Platform Filter drop-down menu.
  10. Click Save.
    NOTE:Ensure that the Apply Policy Automatically option is set to Do not apply automatically.
  11. In the pop-up window, click Yes to schedule a job.
  12. Select Immediately in the Run drop-down menu on App Policy Job window, and click Preview.
  13. Click Schedule.
    The Conversion Installer file downloads and installs first followed by the ThinOS image on Ubuntu device. After installation, the device restarts automatically.
    NOTE:After you register the converted ThinOS device to Wyse Management Suite, the ThinOS activation devices license is consumed automatically.
    NOTE:After conversion, ThinOS is in the factory default status. ThinOS must be registered to Wyse Management Suite manually or using DHCP/DNS discovery.
    NOTE:If the conversion has failed, you can refer to the error log table below and reschedule the job. Go to Jobs > Schedule APP Policy to reschedule the job.
    NOTE:If the conversion has failed, it is recommended to install the ThinOS ISO image.
    If there is /usr/dtos folder in the Ubuntu device, then you can use command “cat /var/log/dtos_dca_installer.log” to get error log. If there is no /usr/dtos folder present in the device that runs Ubuntu, go to the Jobs page in Wyse Management Suite server to check the error messages.
    Table 2. Error logError log
    Error Log Resolution
    No AC plugged in Plug in power adapter, re-schedule job
    Platform Not Supported This hardware platform is not supported
    Error mounting recovery partition The Ubuntu image is not a factory image. Re-install the factory image.
    No DHC/ThinOS package in recovery partition Cannot find the ThinOS image, re-schedule job
    Error in extracting DHC/ThinOS Future packages Failed to extract the ThinOS image, re-schedule job
    Error copying the DHC/ThinOS Future packages to recovery partition Failed to copy the ThinOS image, re-schedule job
    ThinOS package verification failed ThinOS image is not correct, re-schedule job with the correct ThinOS image
    Not enough space in Recovery Partition Clear the recovery partition
    The free space of Recovery Partition is not enough Clear the recovery partition

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