Some systems with BIOS firmware will not boot if the EFI_PMBR entry in the master boot record, which is the only partition, is not active. After installing Oracle Solaris 11.2, the system does not boot. The following message is displayed:
No Active Partition Found
Possible Cause 1: The system firmware incorrectly handles the boot disk because the boot disk is partitioned with the GUID Partition Table (GPT) partitioning scheme.
Workaround 1: Invoke the fdisk program and then activate the Protective Extensible Firmware Interface (EFI) partition on the boot disk.
Possible Cause 2: The system was originally installed in UEFI mode but rebooted in legacy (BIOS) mode.
Workaround 2: Install the system in legacy mode by changing the firmware setup option, for example, by selecting “Boot Mode” or a similar option.