User's Manual Part 3

PERFORMING DOWNLOADS

Omni 3600 Download Differences

MNI 3600 REFERENCE MANUAL 73

Chapter 5 discussed how signer certificates are required inputs to FILESIGN.EXE

when preparing a deployment terminal. Each signature file generated under that

signer certificate contains a logical link that allows the application to authenticate

and run on the terminal only if the signature files and corresponding target files

are downloaded into the target GID.

Although you can store files in any file group simply by selecting the target group

in system mode, the files you download are not authenticated for the target group

you selected unless they are properly signed under the authority of the sponsor

and signer certificates issued for that terminal.

Download an Operating System Update Provided by VeriFone

Because the operating system software for the Omni 3600 is developed and

controlled by VeriFone for its customers, VeriFone provides the necessary

certificates and signature files to ensure the authenticity and integrity of the

operating system update as part of the download package.

The file authentication procedure for OS downloads is much the same as

application downloads, with the following exceptions:

• VeriFone provides all files required for the OS download, including

• The operating system files (such as Q.out, 1.out, and 2.out),

• An encrypted list of the new files, called VFI.PED, and

• A signature file generated by the VeriFone CA under the authority of a

higher-level OS partition sponsor certificate, called VFI.P7S. The file

authentication logic on the receiving terminal uses this signature file to

confirm the origin and authenticity of the encrypted list of files, VFI.PED.

• You must download the entire OS package into Group 1 RAM. If you select a

target group other than Group 1, the operation fails.

• Before you initiate an OS download, either full or partial, ensure enough

memory space is available in Group 1 RAM to temporarily store the OS files

and that any application files can also be stored in Group 1.

• If you have selected a full OS download in system mode, the terminal restarts

automatically and the new OS is processed and replaces the existing OS. In

this download operation, all application files stored in Group 1 are

automatically erased.

• If you select a partial OS download, the operating system returns control to

system mode after the download completes. To process the new OS, you

must manually restart the terminal by selecting the appropriate system mode

NOTE

Operating system files can only be transferred to an Omni 3600 terminal using a

PC-to-terminal download procedure, either direct or by telephone. OS files cannot

be downloaded to an Omni 3600 terminal in a back-to-back operation.