Install specific legacy version

ChirpStack Application Server
1

Hello!

I would like to specifically install version 0.13.1 of lora-app-server,

Here is what I’ve done:

  • I’ve folowed the quick-install at https://docs.loraserver.io/install/quick-install/

  • I’ve tested starting lora-app-server (came as v 0.18.1) and looked ad journalctl logs - everything OK, I was able to logon as admin:admin at the web interface.

  • aterwards I’ve tried replacing the lora-app-server v0.18.1 binary with the v 0.13.1 binary and started the service, but it seemed (by the journalctl logs) that the v 0.13.1 totally ignores parameters set on /etc/lora-app-server/lora-app-server.toml.

  • so, I’ve run the v0.13.1 with the propper settings on the CLI (se below) and it run OK acording with journalctl:
    /usr/bin/lora-app-server --db-automigrate --http-bind 0.0.0.0:8080 --postgres-dsn ‘postgres://loraserver_as:dbpassword@127.0.0.1/loraserver_as?sslmode=disable’ --jwt-secret “xxxxx” --mqtt-username loraappserver --mqtt-password tctctc --http-tls-cert /etc/lora-app-server/certs/http.pem --http-tls-key /etc/lora-app-server/certs/http-key.pem

  • yet, when I’ve tried to logon the WEB Iface to 8080, I got the error:
    Error missing destination name network_server_id in *[]storage.Gateway (code: 2)

  • And the journalctl gave:
    http2: server: error reading preface from client :63489: timeout waiting for client preface

2

Please note that when upgrading, LoRa (App) Server will also upgrade your database schema. This can be enabled / disabled (db automigrate setting). Downgrading from 0.18.1 to 0.13.1 means you must also downgrade your database schema.

Please see the migrations folder in https://github.com/brocaar/lora-app-server. You can use the git tags to find out which migrations to roll back. A migration has the following format:

-- +migrate Up
schema upgrade statements

-- +migrate Down
schema downgrade statement

Of course you only need to run the downgrade statements (start with migration N, then go to N-1, N-2, …). I also suggest you to refer to the documentation found in the docs folder for the 0.13.1 tag as docs.loraserver.io refers to the latest version.

3

Thank you for your quick reply!

So, I’ve run the SQL statements of { 0025 , 0024 , 0023 , 0022 , 0021 , 0020 , 0019 } which were mentioned in the 0.13.1 tag.

I can get the lora-app- functioning and accessible by using the direct CLI call to the binary with all the arguments,

But, if I try to use the ‘systemctl start lora-app-server’, I get messages as if it is trying to acces the DB as appserver user instead of my loraserver_as defined in the /etc/lora-app-server/lora-app-server.toml file:

Mar 06 17:47:21 lora-app-server lora-app-server[7256]: time=“2018-03-06T17:47:21Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “appserver””

4

Please note that the lora-app-server.toml configuration was only introduced recently. This is how you need to configure LoRa App Server 0.13.1: https://github.com/brocaar/lora-app-server/blob/0.13.1/docs/content/install/config.md

When you pull the 0.13.1 .deb file from https://dl.loraserver.io/deb/, you’ll find the “old” config file at /etc/default/lora-app-server.

5

Sorry for the long time replying, we may be on different timezones .)

I cannot thank you enough for your prompt and sharp answers.

I will spread the good word on how well Lora is documented and supported

1 Like
6

Hello @brocaar!

I was attempting to use version 0.17.1 of lora-app-server, this time I’ve attempted to directly run the .deb file, which auromatically created an /etc/default/lora-app-server config file.

So, I’ve edeted the /etc/default/lora-app-server according to my environment and attempted to start the lora-app-server.

But what I’ve found (with journalctl) is that the lora-app-server is attempting to access the psql DB with the root user, instead of the loraserver_as that is defined in the POSTGRES_DSN line of the config file.

When I attempt to run the binary with the explicit arguments, it runs OK

7

To run lora-app-server from the command-line, you could try:

set -a
source /etc/default/lora-app-server
lora-app-server

The whole reason to switch from environment variables to a proper config file was these kind of issues :wink: