Have tested in-place Gaia upgrade from R80.40 to R81.20 using Check_Point_R81.20_T634_Fresh_Install_and_Upgrade.tar on several systems, both gateways and management servers, and not once has it run successfully. All are open server, not appliances.
The package imports OK, the verify process says upgrade is possible, and then the upgrade fails silently at around 85% and the device gets automatically rolled back to R80.40. Well, management servers get rolled back, gateways have to be rebuilt from scratch as the rollback fails.
Found a log file that stops logging anything prior to the failures, so there is no useful information there.
This upgrade path is supported. The deployment agent is the latest version. There is enough disk space. The verification process succeeds. Am running "installer upgrade". Systems are all 64-bit. Am doing everything according to the documentation.
These failures occur even on brand-new clean R80.40 installs.
Am honestly wondering if this process has ever worked for anyone.