Cray System Management Documentation > Cray System Management (CSM) Administration Guide > node management > Update the Gigabyte Node BIOS Time

Update the Gigabyte Node BIOS Time

Check and set the time for Gigabyte compute nodes.

If the console log indicates the time between the rest of the system and the compute nodes is off by several hours, then it prevents the spire-agent from getting a valid certificate, which causes the node boot to drop into the dracut emergency shell.

Procedure

Retrieve the cray-console-operator pod ID.

ncn-mw# CONPOD=$(kubectl get pods -n services -o wide|grep cray-console-operator|awk '{print $1}'); echo ${CONPOD}

Example output:

cray-console-operator-79bf95964-qpcpp

The following steps should be repeated for each Gigabyte node which needs to have its BIOS time reset.

Set the XNAME variable to the component name (xname) of the node whose console you wish to open.
```
ncn-mw# XNAME=x1001c0s24b1n0
```

Find the cray-console-node pod that is connected to that node.

ncn-mw# NODEPOD=$(kubectl -n services exec "${CONPOD}" -c cray-console-operator -- \
                    sh -c "/app/get-node ${XNAME}" | jq .podname | sed 's/"//g') ; echo ${NODEPOD}

Example output:

cray-console-node-1

Connect to the node’s console using ConMan on the identified cray-console-node pod.

ncn-mw# kubectl exec -it -n services "${NODEPOD}" -- conman -j "${XNAME}"

Example output:

<ConMan> Connection to console [x1001c0s24b1] opened.

In another terminal, boot the node to BIOS.

Set the BMC variable to the component name (xname) of the BMC for the node.

This value will be different for each node.
```
ncn# BMC=x1001c0s24b1
```

Boot the node to BIOS.

read -s is used to prevent the password from being written to the screen or the shell history.

ncn# USERNAME=root
ncn# read -r -s -p "$BMC ${USERNAME} password: " IPMI_PASSWORD
ncn# export IPMI_PASSWORD
ncn# ipmitool -I lanplus -U "${USERNAME}" -E -H "${BMC}" chassis bootdev bios
ncn# ipmitool -I lanplus -U "${USERNAME}" -E -H "${BMC}" chassis power off
ncn# sleep 10
ncn# ipmitool -I lanplus -U "${USERNAME}" -E -H "${BMC}" chassis power on

Update the System Date field to match the time on the system.

Use the terminal which is watching the console for this step. As the node powers on, it will complete POST (Power On Self Test) and then display the BIOS menu.

The System Date field is located under the Main tab in the navigation bar.
Enter the F10 key followed by the Enter key to save the BIOS time.
Exit the connection to the console by entering &..
Repeat the above steps for other nodes which need their BIOS time reset.