If using the OVFtool make sure to use the –skipManifestCheck this allows the OVF to be created after removing the references to NVRAM without this command the OVF Tool would not be able to confirm the manifest file and will return an error
E:\PC_SAVE\VMwareESXi-Backup>C:\“Program Files\VMware\VMware OVF Tool\ovftool.exe“ –datastore=“HDD500GB“ –diskMode=thin –name=VA-DB-I-029 –skipManifestCheck F:\PC_SAVE\VMwareESXi-Backup\medico27SystemWorkshopTemplate\VA-DB-I-029\VA-DB-I-029.ovf vi://root:<password>@192.168.1.143 Opening OVF source: F:\PC_SAVE\VMwareESXi-Backup\medico27SystemWorkshopTemplate\VA-DB-I-029\VA-DB-I-029.ovf The manifest does not validate Opening VI target: vi://root@192.168.1.143:443/ Deploying to VI: vi://root@192.168.1.143:443/ Transfer Completed Warning: – The manifest is present but user flag causing to skip it Completed successfully
root@pve-02:~# ls -la VM* -rwxrwxr-x 1 root root 35814258 Jun 17 09:45 VMware-ovftool-4.2.0-5965791-lin.x86_64.bundle
root@pve-02:~# ./VM* Installing VMware OVF Tool component for Linux 4.2.0 Configuring… [######################################################################] 100% Installation was successful.
root@pve-02:cd /mnt/pve/Migration
root@pve-02:/mnt/pve/Migration# ovftool vi://root@192.168.1.127/va-db-o-28 . Accept SSL fingerprint (CD:4D:B2:2F:6B:A0:78:88:D5:92:B3:86:F7:AC:73:E9:BA:B1:D7:26) for host 192.168.1.127 as source type. Fingerprint will be added to the known host file Write ‚yes‘ or ’no‘ yes Enter login information for source vi://192.168.1.127/ Username: root Password: ******** Opening VI source: vi://root@192.168.1.127:443/va-db-o-28 Opening OVF target: . Writing OVF package: ./va-db-o-28/va-db-o-28.ovf Transfer Completed Completed successfully
Importing – go to the command line interface of Proxmox VE and use the command qm importovf <new-vmid> </path/to/file.ovf> <storage> to import the virtual machine
Proxmox VE – 
VMware vSphere VM Service – 