Dell Wyse ThinOS Version 9.1.3129, 9.1.3112, 9.1.2101, and 9.1.1131 Migration Guide

Important notes

• All device settings are erased after you upgrade from ThinOS 8.6 to 9.1.3129 except the following settings:

  • Wyse Management Suite group token and server settings
  • Static DNS
  • Certificates
  • IEEE802.1x wired authentication settings
  • Wireless connections
    • The WEP/Sharekey security type is changed to Open as they are not supported in ThinOS 9.1.
  • Proxy settings
• If you are an 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.
• If you are a 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.
• You cannot boot into ThinOS 9.1 when you perform the following operations:
  • Disable the onboard Network Interface Card (NIC), Trusted Platform Module (TPM), or Platform Trust Technology (PTT).
  • Clear TPM or PTT.
  • Reset BIOS to factory default settings.
• If you are using ThinOS 9.0.1136, you cannot 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.
• When you upgrade from ThinOS 9.0 to 9.1, the thin client downloads all the application packages that are applicable to ThinOS 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.
• If the thin client is registered in Wyse Management Suite group 1 and you set Wyse Management Suite group 2 token in group 1 policy, then the group 2 token is applied on GUI but the thin client remains in group 1. You must reboot the thin client to change the thin client to Wyse Management Suite group 2.
  NOTE Dell Technologies recommends that you set a new 9.1 application package or an 9.1 OS firmware package in group 1, so that thin client installs the package and automatically reboots and changes to group 2.
  NOTE If you are using ThinOS 9.1.1131 or any previous version, you must set Wyse Management Suite group token and server in group 2 policy, or the connection from the client to Wyse Management Suite is lost.
• ThinOS 9.1 does not apply operating system firmware application package and BIOS firmware in the child select group.
• When you set a new firmware or an application package in Wyse Management Suite group 2 and then change the device from group 1 to group 2 before upgrading, the following two notifications are displayed:
  • WMS server or group is changed. System is going to reboot to load full configuration. Press cancel in 60 seconds to prevent reboot.
  • A new firmware or application is available, do you want to upgrade now or defer to the next reboot? The changes will automatically be applied in 120 seconds.

  If you do not select an option, the thin client reboots after 60 seconds. After reboot the new application or firmware is installed and the thin client reboots again.

• If the Live Update option is disabled, the thin client cannot download and install a firmware or package until the next reboot. However, the firmware or packages are downloaded in the following scenarios even when the Live Update option is disabled:
  • When you register the thin client to Wyse Management Suite manually.
  • When you power on the thin client from a power off state.
  • When you change the Wyse Management Suite group.
• When a new firmware or an application notification is displayed on your thin client, clicking Next Reboot will:
  • Displays a notification if you have changed the Wyse Management Suite group and if the files are downloaded from the new group.
  • Displays a notification if the new firmware or application is downloaded in the same group.
  • Installs the firmware or package after a reboot.