Administrator Guide

GRUB menu password
GRUB is the default boot loader for Dell Hybrid Client. Dell Hybrid Client enables you to set a password for the GRUB boot menu
to restrict access to the following operations:
● Enabling dev mode to access the terminal—You can use the Bremen account on this mode to manage sudo or elevated
privileges.
● User access to the GRUB boot menu
A random GRUB password is generated when you start a device that is powered by Dell Hybrid Client for the first time.
This feature is available from Dell Hybrid Client version 1.5 onwards. As an administrator, you must change the default GRUB
password. For information about how to set the GRUB password, see Enable GRUB menu password protection.
NOTE: Changing the GRUB password is mandatory and you cannot leave the password field blank.
GRUB password change complaint—When the GRUB password is changed, the device compliance status on the Devices
page on Wyse Management Suite displays green. This feature is available from Wyse Management Suite Pro version 3.2
onwards. When you hover over the green mark, the status is displayed as Compliant. If the default GRUB password is
not changed, the device compliance status shows red. When you hover over the red mark, the status is displayed as Grub
password not changed. The administrator must change the GRUB password to change the device status to Compliant. If
the same device is unregistered and registered again, the changed GRUB password is resynchronized during check-in to Wyse
Management Suite. The device compliance status shows green, and the administrator does not need to change the GRUB
password again.
You can use the Wyse Management Suite console to view the GRUB password. For more information about how to view the
GRUB password, see View the GRUB password. If the device registration fails, the administrator can still generate a GRUB
password using the serial number and Universally Unique Identifier (UUID) of that particular device. For more information about
how to generate the GRUB password, see Generate the GRUB password.
Enable GRUB Menu Password Protection
Steps
1. Log in to Wyse Management Suite.
2. Go to the Groups & Configs page, and select your preferred group.
3. Click Edit Policies > Hybrid Client.
The Configuration Control | Hybrid Client page is displayed.
4. Click the Advanced tab.
5. Expand Privacy & Security, and click GRUB Password.
6. In the GRUB Password field, enter the password.
NOTE: As an administrator, you must change the GRUB Menu password during the initial setup for improved security.
7. Click Save & Publish.
8. Power on the device.
9. During boot, keep tapping the Esc key to enter the GRUB menu. When prompted, enter the password that you have
specified in Wyse Management Suite.
View the GRUB password
Prerequisites
Ensure that your device is registered to Wyse Management Suite.
Steps
1. Log in to Wyse Management Suite.
2. Go to the Devices page.
3. Locate your Dell Hybrid Client-based device and click the device name.
4. From the More Actions drop-down list, click GRUB Password.
The View GRUB Password dialog box is displayed.
Managing user accounts
17