suhas-karanth/node_pm2_update.md

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Upgrading node and pm2 using nvm

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node_pm2_update.md

Update node using nvm

nvm install 6.3
nvm alias default 6.3
nvm use 6.3

Install and Update pm2

npm install pm2@latest -g ; pm2 update
sudo update-rc.d -f pm2-init.sh remove [--force]
pm2 startup ubuntu

To switch any saved processes to use new node version

pm2 restart all

sudo-suhas commented Jun 16, 2021

I think it would be uninstalling the previous auto start script setup by previous version of pm2. However this gist is from a long time ago and I wouldn't recommend relying on it.