I've tried to use YafuKCS tool to update BMC locally, but Linux archive contained only Yafuflash for USB/Network flashing. Is there YafuKCS version for Linux, which is possible to update BMC firmware from Linux via KCS media?
The Linux version of YafuKCS tool on our FTP site can actually do what you want. Due to the hardware connection between the motherboard & BMC chip, you'll have to attach the virtual media for the tool to use first.
Below is the procedure:
1) Log in IPMI and go to Configuration --> Remote Session, change Virtual Media Attach Mode to "Attach."
2) Issue command like: "./Yafuflash -auto -cd X8DTT_205.ima"
You don't need the network or USB media any more. You can flash the IPMI firmware via local KCS bus, directly.