导入密钥、添加源、安装软件:

curl -fsSL https://linux.dell.com/repo/pgp_pubkeys/0x1285491434D8786F.asc | gpg --dearmor -o /etc/apt/trusted.gpg.d/dell-apt-key.gpg
echo 'deb [signed-by=/etc/apt/trusted.gpg.d/dell-apt-key.gpg] http://linux.dell.com/repo/community/openmanage/11000/jammy jammy main' >> /etc/apt/sources.list
apt-get update && apt-get install srvadmin-idracadm8
racadm getsysinfo # 输出系统信息代表BMC通讯正常

image
开启OS-BMC (RNDIS):

racadm set iDRAC.OS-BMC.AdminState 1
racadm set iDRAC.OS-BMC.PTMode 1
racadm set iDRAC.OS-BMC.OSIpAddress 0.0.0.0
racadm set iDRAC.OS-BMC.UsbNicIpAddress 169.254.0.5 # 可选，如果你不喜欢默认的 0.1

然后在系统内即可看到idrac虚拟网卡，手动配置一个IP，即可访问到BMC
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如果不记得/需要重置密码:

racadm getconfig -u root # 先获取root用户编号
racadm set iDRAC.Users.2.Password calvin # 重置用户2的密码为: calvin

参考文章:

https://blog.williamdes.eu/Infrastructure/tutorials/install-dell-idrac-racadm-on-proxmox-7/
https://www.dinghui.org/esxi-idrac-tools-racadm-reset-idrac-password.html

Q.E.D.