The GUID Partition Table entry order is not validated.
I did not test if the backup GPT header (backup LBA) was used/validated. I did not test if the disk identifier was also used/validated, but it's not unreasonable to assume such. This should not be confused with the partition type GUID. The disks are set up with a standard GUID Partition Table layout, with strict validation of both header and partition array CRC32 checksums.Īll partitions must also be assigned a well-known GUID. This can invalidate hard disk backups very quickly. (More testing is needed in this area.)Īnti-rollback protection is present and used, preventing use of older versions of the OS after an update. The boot loader appears to maintain state about previous successful/unsuccessful boots, which could lead to unexpected behavior when swapping disks. This presents a hypothetical hardware configuration data persistence problem when migrating data from one disk to another. If this is not plugged in, you will not be able to complete the out-of-box-experience (OOBE), even in a wired configuration.Įncrypted container use is common on this platform. The wireless chipset reports antenna status to the operating system. This part swap was likely due to the scarcity and current cost of SATA2 disks.
The Xbox One S ships with a SATA3 drive but the same controller, limiting the drive to theoretical SATA2 speeds. That means an Xbox One 500GB will always want to restore a partition layout compatible with a 500GB disk.Īll Xbox consoles ship with a SATA2 controller. This configuration is used to rebuild the partition layout on the internal disk in recovery scenarios, presenting an obstacle for a quick and easy disk swap. 500GB, 1TB) that have this configuration burnt into its flash memory. All Xbox consoles ship in storage configurations (e.g.(Thanks for your patience, Stefán!) Hardware Considerations My hypothesis at the time was that the disk, because of its slow speed, must be very busy and that swapping it out would yield a noticeable performance boost to the operating system and improve overall UX.īut a few folks on Twitter expressed interest in reproducing the experiment so here are my notes. In a desperate effort to improve the Xbox One user experience (UX), I experimented with swapping out the Samsung Spinpoint M8 5400 RPM hard disk for a solid-state disk (SSD).
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