User's Manual

Using Dell Update Packages 21

Obtain the Linux DUP and its associated signature file from the

Dell Support website at

support.dell.com/support/downloads

NOTE: Each Linux DUP has a separate signature file, which is shown on the

same web page as the DUP. You need both the DUP and its associated

signature file for verification. By default, the signature file is named the

same as the DUP filename with a .sign extension. For example, if a Linux

DUP is named PE1850-BIOS-LX-A02.BIN, its signature filename is

PE1850-BIOS-LX-A02.BIN.sign. To download the files, right-click the

download link and use the "Save Target As..." file option.

Verify the DUP:

gpg --verify

<Linux Update Package signature

filename> <Linux Update Package filename>

The following example illustrates the steps that you follow to verify a 1425SC

BIOS DUP:

Download the following two files from

support.dell.com

• PESC1425-BIOS-LX-A01.bin.sign

• PESC1425-BIOS-LX-A01.bin

Import the public key by running the following command line:

gpg --import <linux-security-publickey.txt>

The following output message appears:

gpg: key 23B66A9D: "Dell Computer Corporation

(Linux Systems Group) <linux-

security@dell.com>" not changed

gpg: Total number processed: 1

gpg: unchanged: 1