upgrade vmware esx 5.1 to 5.5 via comman line

# open firewall for outgoing http requests:

2 esxcli network firewall ruleset set -e true -r httpClient

3 # Install the ESXi 5.5 GA Imageprofile from the VMware Online depot

4 esxcli software profile update -d https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml -p ESXi-5.5.0-1331820-standard