8.2.5.5 PARTIES Partition
Start of informative comment
The PARTIES Partition is a hidden partition on the hard drive that BIOS can use for additional storage space and as a virtual drive. In the PARTIES Partition, there is a small section called the BEER. Prior to turning control over to the PARTIES Partition, the BIOS must measure the BEER area into PCR[5].
The partition that is booted to in the PARTIES Partition must also have the initial IPL image code measured into PCR[4] prior to turning control over to this code.
End of informative comment
When executing, this is treated as IPL Code including the measurement of it even if the binary image is already measured into PCR[0].
(According to Google, this seems to be there at least since 2003.)
Sicher ist sicher? 