Administrator Guide
1. Download the Dell BIOS file from the respective hardware pages on Dell support site.
For example, 5470AIO_bios.bin. The BIOS version may be updated in each release. For the latest version of BIOS, see the latest
Dell Wyse ThinOS Release Notes.
2. Upload the BIOS file to folder WNOS in the file server—ftp or https.
3. Ensure that the INI parameter autoload is enabled for firmware update in WNOS.INI.
4. Restart the thin client.
The BIOS is updated automatically.
To verify whether the new BIOS is updated correctly, from the desktop menu, click the System Information option, or click the System
Information icon in zero mode. In the Event Log tab, the BIOS version log is displayed.
BIOS version can be viewed on the BIOS setup screen. To access the BIOS setup, do the following:
1. Restart the thin client, and during system boot, press the F2 key.
2. Enter the BIOS password, if admin password is set.
3. Click Settings > General > System Information.
The BIOS version is displayed on the screen.
BIOS can also be updated by using the Wyse Management Suite console. For more information about Wyse Management Suite, see Dell
Wyse Management Suite Administrator's Guide.
System configuration and deployment
• USB redirection must be disabled for audio and video devices to use RTME, RTAV, SFB, and JVDI. By default, the USB redirection is
disabled on ThinOS. It is recommended that you do not modify the default settings unless you need the USB redirection for audio and
video devices.
• ThinOS BIOS policy can be configured using Wyse Management Suite Console, Wyse Management Suite group INI, Wyse
Management Suite advanced settings and FTP INI. Dell recommends that you use any one of the methods to configure the BIOS
policy. Setting the BIOS policy simultaneously using different methods may cause a policy mismatch, and the device reboots
repeatedly. This reboot loop issue is observed when you select the reboot immediately option in the BIOS policy settings section on
the Wyse Management Suite console.
• All the installed packages are deleted when you update the ThinOS image version between major releases using FTP or Wyse
Management Suite.
Solution for updating firmware using FTP—Ensure that you have set the PKG install parameters in the WNOS.ini, and the pkg
files are uploaded in the directory. After the device reboot, the packages are re-installed automatically.
Solution for updating firmware using Wyse Management Suite—Wyse Management Suite App policy works only once after the
policy is created. The deleted package cannot be reinstalled using the same policy. It is recommended that you create a new App policy
to install the package after the firmware update is complete.
Automating updates and settings using central
configuration
ThinOS is centrally managed and configured using INI files to automatically push updates and any desired default configuration to thin
clients in your environment. This section describes how to set up your environment to provide your thin clients running ThinOS with
automatic updates and configurations in three simple steps. If no INI files are detected, you can use local dialog boxes on each thin client
to configure the settings. Many of these locally configured settings such as resolution, mouse, and keyboard are saved on ThinOS to
persist after reboot. However, once INI files are detected, rebooting the client causes ThinOS to become stateless, and ignores the locally
configured settings after a reboot. The settings contained in the INI file are used.
NOTE:
Dell Wyse thin clients do not require device management software. They are configured to obtain their IP
address, as well as the location of firmware and configuration instructions, from a DHCP server. However, you can use
Wyse Management Suite for a more hands-on management of your thin clients. For information about configuring your
thin clients to communicate with Wyse Management Suite, see the related INI parameters in
Dell Wyse ThinOS INI
Guide
.
12 Before working on ThinOS