Installation fails if you attempt to boot the system by using the following command:
# boot -F wanboot -vV -o prompt
As a result, a system panic occurs. The following error message is displayed:
wanboot: panic - boot: can't alloc ramdisk memory
This problem occurs on both Sun4u and Sun4v platform types. This problem was introduced in the Solaris 10 10/08 release.
Workaround: Do not use wanboot program to boot the system. Instead, boot the system directly from the installation media.