Minimal system requirements are not sufficient for system upgrade

[asbachb]

Relevant documentation page: https://www.talos.dev/v1.9/introduction/system-requirements/

Bug Report

Talos docs states that the minimum requirement for a worker node is 1 GiB Memory. This is not sufficient enough to upgrade Talos (tested 1.7 -> 1.8 and 1.8 ->1.9).

With 1GiB RAM the installer image cannot be extracted:

192.168.122.177: user: warning: [2024-12-29T22:53:40.499511487Z]: [talos] upgrade request received: preserve false, staged false, force false, reboot mode DEFAULT
192.168.122.177: user: warning: [2024-12-29T22:53:40.503421487Z]: [talos] validating "ghcr.io/siderolabs/installer:v1.8.0"
192.168.122.177: user: warning: [2024-12-29T22:53:56.047346487Z]: [talos] service[cri](Running): Health check failed: rpc error: code = DeadlineExceeded desc = context deadline exceeded
192.168.122.177: user: warning: [2024-12-29T22:54:00.200694487Z]: [talos] service[cri](Running): Health check successful
192.168.122.177: user: warning: [2024-12-29T22:54:00.363392487Z]: [talos] retrying error: failed to pull image "ghcr.io/siderolabs/installer:v1.8.0": failed to extract layer sha256:88a26049fdc0a83a287eba664c973f9376645027abab49cefabfe3c6c5cc5774: write /system/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/2/fs/usr/install/amd64/initramfs.xz: no space left on device: unknown

[runningman84]

It might working using the stage and reboot powercycle parameter:

talosctl upgrade --talosconfig=./clusterconfig/talosconfig --nodes=x.x.x.x --image=factory.talos.dev/installer-secureboot/96a7f87df6d7f2a5c6f2c5352738a24a901a5cc14f90d7fe4cbdc9fba2781796:v1.9.1 --preserve=true -m powercycle -s;