User's Manual
22 Using Dell Update Packages
3
Validate the Dell public key, if you haven’t done so previously, by typing
the following command:
gpg --edit-key 23B66A9D
At the command prompt, type the following commands:
fpr
sign
Answer the validation questions.
4
Verify the PESC1425 BIOS package digital signature by running the
following command:
gpg --verify PESC1425-BIOS-LX-A01.bin.sign
PESC1425-BIOS-LX-A01.bin
The following output message appears:
gpg: Signature made Thu 14 Apr 2005 04:25:37 AM
IST using DSA key ID 23B66A9D
gpg: Good signature from "Dell Computer
Corporation (Linux Systems Group) <linux-
security@dell.com>"
NOTE: If you have not validated the key as shown in step 3, you will receive
additional messages:
gpg: WARNING: This key is not certified with a
trusted signature!
gpg: There is no indication that the signature
belongs to the owner.
Primary key fingerprint: 4172 E2CE 955A 1776
A5E6 1BB7 CA77 951D 23B6 6A9D
Compatibility Concerns
DUPs are designed to confirm that all prerequisites are satisfied before applying
the update to your system. Each DUP checks to ensure the following:
• The logged-on user has root privileges.
• The DUP to be applied in the command is compatible with your target system.
• The DUP to be applied in the command is compatible with the operating
system running on your system.