目前iDRAC 2.40.40.40 ，准备升级到最新 2.83.83.83，直接Failed，提示RED007: Unable to verify Update Package signature.（无法验证 Update Package 签名）。
官方文档：https://www.dell.com/support/kbdoc/zh-cn/000135299
解决方法：
https://www.dell.com/support/home/zh-hk/drivers/driversdetails?driverid=1hy5m&oscode=naa&productcode=poweredge-r630
根据教程介绍，在较旧版本内下载并逐个版本升级
先 2.61.60.60
https://dl.dell.com/FOLDER05296873M/3/iDRAC-with-Lifecycle-Controller_Firmware_1HY5M_WN32_2.61.60.60_A00_02.EXE
再到2.75.75.75
https://dl.dell.com/FOLDER06305194M/1/iDRAC-with-Lifecycle-Controller_Firmware_KRCXX_WN32_2.75.75.75_A00.EXE
再到2.83.83.83
https://dl.dell.com/FOLDER08379910M/1/iDRAC-with-Lifecycle-Controller_Firmware_DDK5R_WN64_2.83.83.83_A00.EXE
大功告成！