How mount secondary disk

Harvester
1

trying mount disk via fstab, but after reboot fstab is clean

cat /etc/*release
NAME="k3OS"
VERSION="k3OS v0.1.3-dirty"
ID=k3os
ID_LIKE=alpine
PRETTY_NAME="k3OS v0.1.3-dirty"
VERSION_ID="v0.1.3-dirty"
HOME_URL="https://k3os.io/"
SUPPORT_URL="https://k3os.io/"
BUG_REPORT_URL="https://github.com/rancher/k3os/issues"
ISO_URL="https://github.com/rancher/k3os/releases/download/v0.1.3-dirty/k3os-amd64.iso"

harvester-52cj6 [~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop1 7:1 0 46.7M 1 loop /usr
loop2 7:2 0 290M 0 loop /usr/src
sda 8:0 0 446.6G 0 disk
├─sda1 8:1 0 47M 0 part
└─sda2 8:2 0 446.6G 0 part /k3os/system
sdb 8:16 0 16.4T 0 disk
└─sdb1 8:17 0 16.4T 0 part
sdc 8:32 0 20G 0 disk /var/lib/kubelet/pods/8e9d4cc3-7d44-43d9-8b54-f652fdfd71dc/volumes/kubernetes.io~csi/pvc-ceb5c8eb-7fa0-4f01-ac4b-14c95a7b3796/mount

2

I have created a yaml file in /var/lib/rancher/k3os/config.d/ called harvester-mount.yaml with the following content:

runCmd:
  - "sudo mount UUID=18dae58b......c7cdc94a4b /var/lib/longhorn-sdb"

(make sure you created the mount path)

The UUID can be found with:
sudo lsblk -f /dev/sdb

After a reboot, Harvester will mount the 2nd disk. You then have to add it in Longhorn. That can be done by enabling Rancher in the settings of Harvester. Then go into Rancher, select the Local cluster and go into Longhorn. Add the disk by edit the node and add the path where you mounted the disk, ie. /var/lib/longhorn-sdb/

Hope this helps.