Factory reset from U-boot

In the event of a forgotten or lost BMC root password, if the IPU-Machine BMC firmware is an earlier version than 1.9.0, a factory reset is required. This can be done from u-boot, using the steps described below.

1. Gain physical access to the IPU-Machine and connect your laptop or server to the IPU-Machine management port with a micro-USB cable.

2. Start a serial communication program, for example minicom. Settings should be: baud speed: 115200, data bits: 8, stop bits: 1. Enable software Fflow control if using minicom. Flow control should be set to “none” if using putty.

3. Do an AC power cycle by unplugging the AC cables from the power supplies. Let the system power down, and then reinsert the cables, while having the serial terminal running. When the BMC reboots, enter U-Boot by pressing any key.

4. You should now see the #ast prompt.

5. Issue the command setenv openbmconce factory-reset, then save, save, reset.

6. Factory reset should now be in progress. Once it is done, let the BMC boot and try to login with the default credentials.