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You can’t just make RKE2 use arbitrary additional disks. You should increase your root partition size when provisioning the GCE instance; or if you cant do that then uninstall rke2, partition/format/mount the additional disk at /var/lib/rancher, and then reinstall. This is all just kinda basic linux system administration stuff though.

Thanks for the response Brandon, that is helpful. The linux system administration concepts are definitely muddy waters for me. Going to adjust my script to create the new file system to use

/var/lib/rancher

as you mentioned.