Boot UANs

Boot UANs with an image so that they are ready for user logins.

Prerequisites

UAN boot images and a BOS session template have been created. See Image Preparation.

Procedure

  1. (ncn-mw#) Create a BOS session to boot the UAN nodes.

    cray bos v2 sessions create --template-name uan-sessiontemplate-PRODUCT_VERSION \
        --operation reboot --format json | tee session.json

    Example output:

    {
  "components": "",
  "limit": "",
  "name": "9fea7f3f-0a77-40b9-892d-37712de51d65",
  "operation": "boot",
  "stage": false,
  "status": {
    "end_time": null,
    "error": null,
    "start_time": "2022-08-22T14:44:27",
    "status": "pending"
  },
  "template_name": "cle-1.1.0"
}

  2. (ncn-mw#) Retrieve the BOS session name from the output of the cray bos v2 session create command in the previous step.

    BOS_SESSION=9fea7f3f-0a77-40b9-892d-37712de51d65

  3. (ncn-mw#) List the CFS sessions.

    NOTE Skip this step if CFS was not enabled in the boot session template used to boot the UANs.

    If CFS was enabled in the boot session template, then BOS will set configuration in CFS that will trigger a CFS session.

    In the following command, pending and complete are also valid statuses to filter on.

    cray cfs v3 sessions list --tags bos_session=$BOS_SESSION --status running --format json

  4. (ncn-mw#) SSH into a newly booted UAN.

    ssh uan01-nmn

  5. (uan01#) Log out of the UAN.

    exit