最近將舊的 HP Proliant G8 G8 從 ESXI 5.5 升級到 6.5，遇到 兩個 異常
1.VIB 錯誤
2.Intel CPU 漏洞警告
1.VIB 錯誤
執行升級作業到 檢查時，會出現 這個錯誤
The upgrade contains the following set of conflicting VIBs:
Mellanox_bootbank_net-mlx4-en_2.0.0.0-1OEM.550.0.0.472560
Remove the conflicting VIBs or use Image Builder to create a custom upgrade ISO image that contains the newer versions of the conflicting VIBs, and try to upgrade again.
參考網路連結處理
https://nolabnoparty.com/en/esxi-upgrade-from-5-5-to-6-5-conflicting-vibs-with-hpe-image/
https://casesup.com/knowledgebase/how-to-fix-conflict-vibs-error-esxi-host-upgrade-from-5-5-to-6-5/
處理步驟：
Step 1: Login ESXi Host Over SSH
Step 2:Remove Conflict VIBS
列出 Mellanox 所有的 VIB
esxcli software vib list | grep Mell
查看目前網卡
esxcli network nic list
移除有異常的 VIB
esxcli software vib remove -n net-mst
Step 3:Restart ESXi Host and Start Upgrade Steps
2.Intel CPU 漏洞警告
升級完，重開機後，出現警告 esx.problem.hyperthreading.unmitigated
查詢發現是 Intel CPU漏洞 警告
參考VMWare KB，關閉這個 警告
https://kb.vmware.com/articleview?docid=57374&lang=zh_CN
把 UserVars.SuppressHyperthreadWarning 的值，改成 1
