The following are general features of Oracle Solaris booting and shutdown operations:
On Oracle Solaris x86 platforms, UEFI secure boot combines with the Oracle Solaris Verified Boot feature which confirms signatures on kernel module loads. Together, they provide an end to end chain of trust when you boot the system.
WAN boot is supported on both SPARC and x86 systems that have UEFI enabled. WAN boot enables you to boot and install software over a wide area network.
The boot process accommodates different types of devices for booting, such as firmware-inaccessible storage devices, where the boot pool is separate from the root pool. In addition, on some servers whose boot pool might be unavailable, you can boot the system from fallback images with which these servers are preconfigured.