The package name is Check_Point_Upgrade_for_R75.40.Splat_to_Gaia.tgz download from https://supportcenter.checkpoint.com/supportcenter/portal/role/supportcenterUser/page/default.psml/media-type/html?action=portlets.DCFileAction&eventSubmit_doGetdcdetails=&fileid=14899&from=wizard.
Followed command line installation guide:
1. Upload the upgrade package through the GUI, it will be placed in: /var/log/cpupgrade/web/
2. Move upgrade.tgz into /var/upgrade
3. #tar -zxvf upgrade.tgz
4. #./UnixInstallScript -NOCRS
In R75.20 the install script is installme.sh
5. Reboot when complete and login to verify upgrade
Do not forget put idle 999 in, else you will get following auto log out messages:
Wait while creating upgrade image … complete
Creating upgrade image is ok
Idle timeout expired, performing auto-logout…
Actually, in my this case, the real reason for failure is because we did not run first time installation wizard and Checkpoint Package did not install first. After tried cpconfig finished first time installation wizard, upgrade was successful.