When using Symantec Encryption Desktop (formerly PGP Desktop) for Whole Disk Encryption with Linux machine and trying to customize the background of WDE BootGuard, the Pre-Boot Authentication screen is displayed without customization and only black background is visible at BootGuard login prompt.
Incorrect handling of the image under the Linux operating system.
This issue is fixed in the following release:
This version/Maintenance Pack is available for download via your account on Symantec File Connect.
Symantec Encryption Desktop 10.3.x PGP Desktop 10.2.x Ubuntu Linux 12 LTS or 14 LTS Red Hat Enterprise Linux/CentOS 5.7, 5.8, 5.9, 5.10, 6.0, 6.1, 6.2, 6.3, 6.4