DietPi installation lacks basic commands

General
1

Hi,

I am just getting into Node-RED. All the documentation I find discusses the 3 commands:

Node-red-start
Node-red-stop
Node-red-log

But the DietPi installation of Node-RED only provides the command Node-red

Incidentally, I am also running on an Pine64, if that makes a difference.

Has anybody any ideas why this should be so?

Thanks!

Brian

2

the default DietPi install does not install those extra commands, so they are not available.

If you use our upgrade script for Pi - it should fail to upgrade and tell you to use their update mechanism, but it will as a bonus add the commands for you... Alternatively the commands used to generate them can be run manually

    echo "journalctl -f -n 25 -u node-red -o cat" > /usr/bin/node-red-log
    chmod +x /usr/bin/node-red-log
    echo "dietpi-services stop node-red" > /usr/bin/node-red-stop
    chmod +x /usr/bin/node-red-stop
    echo "dietpi-services start node-red" > /usr/bin/node-red-start
    echo "journalctl -f -n 0 -u node-red -o cat" >> /usr/bin/node-red-start
    chmod +x /usr/bin/node-red-start

Note: they are not 100% identical in that they are are calling the dietpi-services command but hopefully are close enough.

1 Like
3

@dceejay

The weird thing is even though, I can see node-red-stop and node-red-start at /usr/bin, still getting the following error:
/usr/bin/node-red-stop: line 1: dietpi-services: command not found
If I run as root:
/usr/bin/node-red-stop: 1: dietpi-services: not found

4

That is saying that a command used inside node-red-stop is not found. Not that node-red-stop itself is not found. Have a look at the start of the node-red-stop script.

5

Yes, I am aware of that, that is why I found it weird.

Inside of node-red-stop, there is dietpi-services stop node-red as expected from @dceejay answer.

dietpi-services stop node-red runs pretty fine, if I run it via terminal.

6

Strange. Does it help if you use the full path to dietpi-services in the script. So possibly
/usr/bin/dietpi-services stop node-red
You can find where it is by using which dietpi-services

7

/usr/bin/dietpi-services does not exit. which dietpi-services returns nothing.

However, I have seen the following when I have checked their forum.:

In general dietpi-services is just a frontend for systemctl that we use to start/stop/restart all known/added services on boot, before and after software installs, updates and such, in an order that respects cross-access, e.g. webserver accessing PHP-FPM, or PHP accessing database via module and such.

Hence, I changed the dietpi-services to systemctl. Now, it works as expected.

8

It must be just an alias rather than a script, which would explain why it could not be found in by the script.

9

Thanks for digging into this - just to confirm - you changed the script to be systemctl stop node-red and that now works ?

10

Hi @dceejay,

Yes, exactly.

11

Thanks. I’ll update the script to set it like that instead