1. Connect to your local ESX Server over SSH.
2. copy this link to the ssh session
esxcli software vib install -v
3. copy the vib file you want to install behind the above command
for example: https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/esx/vmw/vib20/esx-base/VMware_bootbank_esx-base_6.0.0-1.17.3029758.vib
press enter and let you esx server download the vib file and install.
4. After installation, you have to reboot you esx server depending on which vib you just installed.
if not already happend, stop your virtual machines before rebooting.
thats it! saved a lot of bucks 🙂