Yesterday Dell posted the 2.10 BIOS update for the R210 to address the latest speculation control exploit. I downloaded the BIOS update package for Windows and after it asks to upgrade from 2.09 to 2.10, the update fails after about 20 seconds with the following message: "BIOS update failed using RBU method" The error code given is 0001. No other information is provided. I haven't had this issue installing the update on any other servers. I have already tried clearing the NVRAM, downloading both the Win32 and Win64 BIOS updates, and also tried downloading the 2.09 update and reinstalling it, but all of them fail with the same error. Alright, so I think I figured out the cause of the problem. Somehow, the update must have failed at some point and wrote some information to the registry, which the updater checks before upgrading the BIOS. If this registry key is present or corrupt, the update fails with this error message. I removed the registry keys: HKLM\SOFTWARE\Dell\Dell System Update\ HKLM\SOFTWARE\Dell Computer Corporation\DellHAPI HKLM\SOFTWARE\Dell Computer Corporation\UpdatePackage   Some of the keys in UpdatePackage were BiosPkgVer, biosupdatepending, dellcomcorpkeypresence, and hapiuninstallpending. These keys were set to 1 even though no update was in progress. Once I deleted everything, the update completed successfully.
Yesterday Dell posted the 2.10 BIOS update for the R210 to address the latest speculation control exploit. I downloaded the BIOS update package for Windows and after it asks to upgrade from 2.09 to 2.10, the update fails after about 20 seconds with the following message: "BIOS update failed using RBU method" The error code given is 0001. No other information is provided. I haven't had this issue installing the update on any other servers. I have already tried clearing the NVRAM, downloading both the Win32 and Win64 BIOS updates, and also tried downloading the 2.09 update and reinstalling it, but all of them fail with the same error.
R210 II BIOS 2.10 "BIOS Update failed using RBU method"