问题
According to the documentation here: http://pm2.keymetrics.io/docs/usage/startup/#startup-systems-support
You can use the command pm2 startup ubuntu -u nodeapps to resurrect all saved pm2 jobs on server startup.
I ran this command as the nodeapps user. Then I was given a sudo su command to run. I logged out of nodeapps, used sudo su to log into the system as root, and ran the command:
sudo su -c "env PATH=$PATH:/usr/bin pm2 startup ubuntu -u nodapps --hp /home/nodeapps"
The processes did not restart on server restart. I found this question on Stack Overflow: Ubuntu 14.04 - pm2 startup not starting after reboot.
In the script /etc/init.d/pm2-init.sh I found the line that question recommended addressing:
export PATH=/usr/bin:$PATH
export PM2_HOME="/home/nodeapps/.pm2"
But it looks correct to me so I didn't change anything.
I then found this question: pm2 Startup not starting up on Ubuntu
and in my boot logs I find the following line:
Starting pm2
/usr/bin/env: node: No such file or directory
I know that 'node' on Ubuntu is actually 'nodejs'. Could this be the reason?
If it is, what can I do to make the startup command look for nodejs instead of node.
Alternatively, could this be a $PATH problem? If it is, how can I add the correct path to root (at least I think it should be added to root)
回答1:
(Posted on behalf of the OP).
In fact that was the problem. Fixed via creating a symlink (as root):
ln -s /usr/bin/nodejs /usr/sbin/node
来源：https://stackoverflow.com/questions/37587388/how-do-you-use-pm2-startup-with-a-non-root-user