BMC communication failed: EMMC2USB unmount failure. Failed to update the firmware
User Action
- Restart BMC via supported method and reboot the system.
- Reflash the BMC firmware
- If the problem persists, perform AC reset or virtual reseat.
Note: When performing AC reset, after powering off AC, wait several seconds before powering on AC. After AC power is restored, power on the host system.
- If the problem persists, try a different Lenovo tool to perform the update (eg. XClarity Administrator, XClarity Controller, or XClarity Essential OneCLI).
- If the problem persists, contact technical support.