Autostart woes

[sdetweil]

i have a 2.4.1 instance of MM running just fine… now to set to start on boot…

install pm2…

the doc for ‘pm2 startup’ doesn’t help me…
‘will give you the command u need to execute’

execute when, how? if unattended, who is ‘you’?

anyhow…from the pi home directory

pm2 start mm.sh

doesn’t

now what?

i have a startup script, which checks for and starts other dependencies…
called run
it doesn’t work either

and, so… IF I wanted pm2 to start at boot… how do I do THAT??
execute that ‘command’…

done that too… and well, pm2 doesn’t start at boot… (no running process with pm2 in it anywhere)

now what?

[sdetweil]

I see this in the pi/.pm2/pm2.log, after service pm2-pi start

internal/modules/cjs/loader.js:583
    throw err;
    ^

Error: Cannot find module './lib/eventemitter2'

and the systemctl status pm2-pi.service command produces

● pm2-pi.service - PM2 process manager
   Loaded: loaded (/etc/systemd/system/pm2-pi.service; enabled; vendor preset: enabled)
   Active: failed (Result: resources) since Tue 2018-07-10 10:36:25 CDT; 7s ago
     Docs: https://pm2.keymetrics.io/
  Process: 2899 ExecStart=/usr/lib/node_modules/pm2/bin/pm2 resurrect (code=exited, status=0/SUCCESS)

Jul 10 10:36:23 raspberrypi systemd[1]: Starting PM2 process manager...
Jul 10 10:36:24 raspberrypi pm2[2899]: [PM2] Spawning PM2 daemon with pm2_home=/home/pi/.pm2
Jul 10 10:36:25 raspberrypi systemd[1]: pm2-pi.service: PID file /home/pi/.pm2/pm2.pid not readable (yet?) after start: No such file or directory
Jul 10 10:36:25 raspberrypi systemd[1]: Failed to start PM2 process manager.
Jul 10 10:36:25 raspberrypi systemd[1]: pm2-pi.service: Unit entered failed state.
Jul 10 10:36:25 raspberrypi systemd[1]: pm2-pi.service: Failed with result 'resources'.

so, it looks like some pm2 install problem

[sdetweil]

I see this error/warning during

sudo npm pm2 install -g

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_modules/pm2/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {“os”:“darwin”,“arch”:“any”} (current: {“os”:“linux”,“arch”:“arm”})

[sdetweil]

i gave up on pm2, edited /etc/rc.local

[Mykle1]

@sdetweil

Did you try installing it without sudo? Just a guess

[sdetweil]

@mykle1 yes, cut and paste from the mm doc

[lavolp3]

I’d recommend trying to do it again using the description by MichMich
https://github.com/MichMich/MagicMirror/wiki/Auto-Starting-MagicMirror

It is crystal clear from what I see, also describes what to do.

"the doc for ‘pm2 startup’ doesn’t help me…
‘will give you the command u need to execute’

execute when, how? if unattended, who is ‘you’?"

No offense, but btoh the doc and your terminal will show you exactly what to do. Copy a line of text the terminal throws out and execute it again.

That’s the reason I’d suggest to do it again with a bit more patience. :-)