Cray System Management Documentation > Cray System Management (CSM) Administration Guide > node management > Set Gigabyte Node BMC to Factory Defaults

Set Gigabyte Node BMC to Factory Defaults

There are cases when a Gigabyte node BMC must be reset to its factory default settings. This page describes when this reset is appropriate, and how to use management scripts and text files to do the reset.

Set the BMC to the factory default settings in the following cases:

There are problems using the ipmitool command and Redfish does not respond.
There are problems using the ipmitool command and Redfish is running.
When BIOS or BMC flash procedures fail using Redfish.

Procedure

This section refers to scripts that exist only in the PIT environment. If necessary, copy the LiveCD data from a different machine to get these scripts.

Note: When BIOS or BMC flash procedures fail using Redfish:

Run the do_bmc_factory_default.sh script
Run ipmitool -I lanplus -U admin -P password -H BMC_or_CMC_IP mc reset cold and flash it again after five minutes.

If booted from the PIT node:

The firmware packages are located in the HPE Cray EX HPC Firmware Pack (HFP) provided with the Shasta release.
The required scripts are located in /var/www/fw/river/sh-svr-scripts

Create a node.txt file and add the target node information as shown:

Example node.txt file with two nodes:
```
10.254.1.11 x3000c0s9b0 ncn-w002
10.254.1.21 x3000c0s27b0 uan01
```
Example node.txt file with one node:
```
10.254.1.11 x3000c0s9b0 ncn-w002
```
(ncn#) Use Redfish to reset the BMC to factory default.
- Option 1: If the BMC is running version 12.84.01 or later, then run:
```
sh do_Redfish_BMC_Factory.sh
```
- Option 2: Use ipmitool to reset the BMC to factory defaults:
```
sh do_bmc_factory_default.sh
```
- Option 3: Use the power control script:
```
sh do_bmc_power_control.sh raw 0x32 0x66
```
  (raw 0x32 0x66 are Gigabyte/AMI vendor-specific IPMI commands to reset to factory defaults.)
(ncn#) Wait five minutes (300 seconds) for the BMC and Redfish to initialize.
```
sleep 300
```
(ncn#) Add the default login and password to the BMC.
```
sh do_bmc_root_account.sh
```
(ncn#) Add the default login and password to Redfish.

IMPORTANT: If the BMC is version 12.84.01 or later, then skip this step.
```
sh do_Redfish_credentials.sh
```
(ncn#) Make sure the BMC is not in failover mode.

Run the script with the read option to check the BMC status:
```
sh do_bmc_change_mode_to_manual.sh read
```
Example output:
```
---------------------------------------------------
[ BMC: 172.30.48.33 ]
=> Manual mode (O)
```
The BMC is in failover mode if the previous command includes output similar to the following:
```
[ BMC: 172.30.48.33 ]
==> Failover mode (X) <==
```
If the BMC is in failover mode, then change the BMC back to manual mode:
```
sh do_bmc_change_mode_to_manual.sh change
```
If the BMC is in a booted management NCN running Shasta v1.3 or later, then reapply the static IP address and clear the DHCP address from HSM/KEA.

Determine the MAC address in HSM for the DHCP address for the BMC, delete it from HSM, and restart KEA.
Reboot or power cycle the target nodes.
(ncn#) After the BMC is reset to factory defaults, wait 300 seconds for BMC and Redfish initialization.
```
sleep 300
```
(ncn#) Add the default login and password to the BMC.
```
sh do_bmc_root_account.sh
```