Problems with core update

Support
1

Hello everyone.

Since yesterday that I was not able to update nethserver core from version 3.20.0 to the now available 3.21.1.
After several atempts, tried command line with:

update-core <Package core · GitHub>

My thought was to go updating from 3.20.0 going through the next version, and so on, until I would be able to update to 3.21.1.

Always same error:

(Error 111 connecting to cluster-leader:6379. Connect call failed (‘127.0.0.1’, 6379).). Retrying…

And next I did something that might be tragic:

update-core <Package core · GitHub> --force

Now I lost access access to cluster-admin.

The update-core is gone from /usr/local/sbin

Resuming: I’m in panic…

2

After recovering from panic, calming down and deep reading on the manual.

The result:

cat /var/lib/nethserver/node/state/environment
systemctl status redis api-server agent@cluster agent@node --no-pager | grep Active
IMAGE_DIGEST=sha256:5a8ad8e2bcdd22bed8c5ab586c84880f9b8aede382836aafdedc2101a1f9ac4d
IMAGE_ID=8ea47b9564e393d29bb45dd1bb5f368e5196a05f46214516effcfb5667b9d636
IMAGE_REPODIGEST= Package core · GitHub
IMAGE_URL= Package core · GitHub
NODE_ID=1
PREV_IMAGE_DIGEST=sha256:5a8ad8e2bcdd22bed8c5ab586c84880f9b8aede382836aafdedc2101a1f9ac4d
PREV_IMAGE_ID=8ea47b9564e393d29bb45dd1bb5f368e5196a05f46214516effcfb5667b9d636
PREV_IMAGE_REPODIGEST= Package core · GitHub
PREV_IMAGE_URL= Package core · GitHub
Active: active (running) since Thu 2026-09-10 18:11:42 WEST; 2min 47s ago
Active: active (running) since Thu 2026-09-10 18:11:33 WEST; 2min 56s ago
Active: active (running) since Thu 2026-09-10 18:12:50 WEST; 1min 39s ago
Active: active (running) since Thu 2026-09-10 18:11:50 WEST; 2min 39s ago

Thanks for a good support manual!