Specifications
PERFORMING DOWNLOADS
Omni 37xx Download Differences
O
MNI 37XX REFERENCE MANUAL 95
Download an Operating System Update Provided by VeriFone
Because the operating system software for the Omni 37xx 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
• 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
menu option. In a partial OS download operation, application files stored in
Group 1 are not erased.
• When you initiate the OS download, the OS file authentication progress
displays on the screen as new certificates are authenticated and added to the
terminal’s certificate tree, and as signature files for corresponding OS files are
detected and authenticated, as shown in Table 21.
• While the new OS is being processed, there is no visible indication on the
terminal display of progress. When the new OS is processed (this usually
NOTE
Operating system files can only be transferred to an Omni 37xx terminal using a
PC-to-terminal download procedure, either direct or by telephone. OS files cannot
be downloaded to an Omni 37xx terminal in a back-to-back operation.