Users Guide

CB10 A544 756B A70B 1019 CED6. If the ngerprint of the imported key is the same as the key owner's, you have a correct
copy of the key. You can verify the key's owner in person, over the phone, or by any other means that guarantees that you are
communicating with the key's true owner.
d c While still in the key editor, type sign.
e Answer the list of trust-validation questions that appear and create a passphrase to use as the secret key. You must import and
validate the public key only once.
4 Obtain the Linux DUP and its associated signature le from dell.com/support/manuals/downloads.
NOTE: Each Linux DUP has a separate signature le, which is displayed along with the DUP. You need both the DUP and
its associated signature le for verication. By default, the signature le is named the same as the DUP lename with a
sign extension.
5 Verify the DUP using the following command: gpg --verify <Linux Update Package signature lename> <Linux Update Package
lename>.
Executing DUPs On Systems Running Windows
To run DUPs from the interactive graphical user interface (GUI), perform the following steps. This procedure applies to all Update
Packages.
1 Execute the DUP by double-clicking the lename from within Windows Explorer.
2 Read the update information displayed in the DUP window.
3 Check the DUP inventory report for Package version and installed versions of component.
4 Click Install to install the DUP.
5 Reboot the system, if necessary.
To execute DUPs from the command line interface (CLI), see Command Line Interface Reference.
Verifying the Digital Signature On Systems Running Windows
To verify the Update Package’s digital signature:
1 Start Windows Explorer and locate the Update Package whose digital signature you want to verify.
2 Right-click the lename.
3 Click Properties in the pop-up menu.
4 In the Properties window, click the Digital Signatures tab. If this tab is not displayed, the Update Package is not signed.
5 Select the signature from the signature list, and click Details.
The Digital Signature Details window appears.
NOTE
: The signature is not veried until you click Details.
6 Read the digital signature information to verify that the digital signature is OK.
7 Click OK to close the window.
Compatibility checking
DUPs are designed to conrm that all prerequisites are satised before applying the update to the system. Each DUP checks to ensure the
following:
• The logged-on user has root privileges.
• DUP to be applied in the command is compatible with the target system and the operating system running on a system.
• The device associated with the DUP is present on the system.
• The minimum required versions of related system software are running on the system.
Using Dell Update Packages
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