Deployment Guide

Introduction
This guide contains instructions to migrate from ThinOS 8.6 to ThinOS 9.1 using Wyse Management Suite 3.1.
NOTE: All device settings are erased after you upgrade from ThinOS 8.6 to 9.1 except the Wyse Management Suite server
settings, wireless connections, wireless certificates, and proxy settings. You must back up your device settings before you
start the upgrade process.
The overall migration process includes the following tasks:
1. Register the thin client to the Wyse Management Suite server using any of the following methods:
● Automate the Wyse Management Suite server and Group Registration Token discovery using the DHCP or DNS records
—see Register ThinOS devices by using DHCP option tags and Configuring devices by using DNS SRV record.
● Manually configure the Wyse Management Suite server and Group Registration Token information using the ThinOS 8.6
user interface—see Register ThinOS devices using Wyse Device Agent.
2. Optionally, add a ThinOS 8.6-based device to a policy group in Wyse Management Suite to retain the INI file configurations
—see Relationship between INI file based and Wyse Management Suite group based configuration.
3. Download the ThinOS 9.1 firmware from the www.dell.com/support site—see Download the ThinOS firmware.
4. Upgrade the ThinOS 8.6 firmware to ThinOS 9.1—see Upgrade ThinOS 8.6 to ThinOS 9.1.
NOTE:
Make sure that the 5070 BIOS version is 1.3.1 or later before upgrading to ThinOS 9.1. If you upgrade to ThinOS
9.1 with earlier BIOS version and then upgrade the BIOS version to 1.3.1 or later, it may fail to boot up the devices.
5. Configure the ThinOS 9.1-based device using Wyse Management Suite version 3.1—see Configuring a new ThinOS 9.1 client
using Wyse Management Suite 3.1.
NOTE:
Once the system is upgraded to ThinOS 9.1, if the BIOS password is set as default or if the password field is empty,
then the Secure Boot is enabled automatically. If the BIOS password is not set as default, you must enable Secure Boot
through Wyse Management Suite or admin policy tool.
NOTE: You cannot boot into ThinOS 9.1 when you perform the following operations:
● Disable the on-board Network Interface Card (NIC), Trusted Platform Module (TPM), or Platform Trust Technology
(PTT).
● Clear TPM or PTT.
● Reset BIOS to factory default settings.
English-language user—Do not modify any language settings in Wyse Management Suite. The default language is English
after you upgrade from ThinOS 8.6.
Multilanguage user—ThinOS 9.1 supports nine languages—English, German, French, Italian, Spanish, Japanese, Chinese
Traditional, Chinese Simplified, and Korean. Users of all regions must use the English language firmware image. There is no
separate firmware image for Japanese language. The firmware image includes the font and language packages for all the nine
languages. You do not need a separate font and language package. You must set the region language in Wyse Management
Suite before upgrade from ThinOS 8.6. After the device upgrade process is complete and checked in to the Wyse Management
Suite server, the user interface language is changed to the language that you have configured in Wyse Management Suite. You
can change the language from either Wyse Management Suite or ThinOS interface.
NOTE:
When you upgrade from ThinOS 9.0 to 9.1, the thin client downloads all the application packages that are applicable
to 9.1. After you upgrade to 9.1, all the application packages are removed and you must reinstall the application packages.
Dell Technologies recommends you to upgrade from ThinOS 9.0 to 9.1 without installing the application packages. If you
add multiple application packages along with the operating system image in the same Wyse Management Suite group, the
upgrade may fail due to the low disk space. In this scenario, you must reset to factory default settings for upgrading the
ThinOS client again.
NOTE: If you are using ThinOS 9.0.1136, you will not be able to upgrade the operating system firmware or install application
packages post September 2021. You can update the operating system firmware or install the application packages by
disabling the time server on ThinOS and changing the system time to August 2021. Dell Technologies recommends you to
update to ThinOS 9.1.1131 or later version where this issue is resolved.
1
4 Introduction