Backup Guide is incorrect

[texclayton]

What happened?

Running cscli config backup fails with an error:
Error: 'cscli config backup' has been removed, you can manually backup/restore /etc/crowdsec instead

crowdsecurity/crowdsec#3158 removed cscli config backup, but no documentation was updated.
My backups have been failing since I updated and I had to go look for the PR that removed the backup command to understand why.

Please update the docs, especially https://docs.crowdsec.net/docs/preview/backup_guide/

What did you expect to happen?

cscli config backup worked and a backup was made

How can we reproduce it (as minimally and precisely as possible)?

cscli config backup

Anything else we need to know?

No response

Crowdsec version

version: v1.6.8-f209766e
Codename: alphaga
BuildDate: 2025-03-25_15:56:53
GoVersion: 1.24.1
Platform: docker
libre2: C++
User-Agent: crowdsec/v1.6.8-f209766e-docker
Constraint_parser: >= 1.0, <= 3.0
Constraint_scenario: >= 1.0, <= 3.0
Constraint_api: v1
Constraint_acquis: >= 1.0, < 2.0
Built-in optional components: cscli_setup, datasource_appsec, datasource_cloudwatch, datasource_docker, datasource_file, datasource_http, datasource_journalctl, datasource_k8s-audit, datasource_kafka, datasource_kinesis, datasource_loki, datasource_s3, datasource_syslog, datasource_victorialogs, datasource_wineventlog

OS version

Using docker image:

crowdsecurity/crowdsec:latest

Enabled collections and parsers

$ cscli hub list -o raw
# paste output here

Acquisition config

```console # On Linux: $ cat /etc/crowdsec/acquis.yaml /etc/crowdsec/acquis.d/* # paste output here

On Windows:

C:> Get-Content C:\ProgramData\CrowdSec\config\acquis.yaml

paste output here

Config show

$ cscli config show
# paste output here

Prometheus metrics

$ cscli metrics
# paste output here

Related custom configs versions (if applicable) : notification plugins, custom scenarios, parsers etc.

[github-actions]

@texclayton: Thanks for opening an issue, it is currently awaiting triage.

In the meantime, you can:

1. Check Crowdsec Documentation to see if your issue can be self resolved.
2. You can also join our Discord.
3. Check Releases to make sure your agent is on the latest version.

Details

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[LaurenceJJones]

Transferred to the docs repo, will most likely remove all preview pages since they have been forgotten since these were written for 1.5 -> 1.6 testing.