Am trying to upgrade a Dell R310 server from 2008 R2 to 2012 R2 ( both Standard editions) but the upgrade fails towards the end of the process. It does the usual prep work, copies files etc. successfully. It then boots into 2012 and you get the "Getting ready" and device enumeration % messages. Finally, it tries to boot again into 2012 but crashes shortly after the Windows logo and rotating dots appear.
I assumed it was a BIOS or firmware problem, even although the server met Dell's minimum criteria for 2012. Anyways, I updated the system BIOS, PERC H700 firmware and iDRAC as follows:
H700 package: 12.10.6-000
H700 firmware: 2.100.03-2514
H700 BIOS: 3.18.0
Despite the BIOS upgrades the system still fails. You can't boot into safe mode and there are no error messages. Have tried booting without driver signature checking and any other options I could find but with no luck.
Have reverted back to Server 2008 R2 for now, but we really need to upgrade this machine.
Any ideas on what I could try next?