root@ip-10-0-9-202 ~]# npm install -g serverless
npm WARN deprecated querystring@0.2.1: The querystring API is considered Legacy. new code should use the URLSearchParams API instead.
npm WARN deprecated querystring@0.2.0: The querystring API is considered Legacy. new code should use the URLSearchParams API instead.
npm WARN deprecated uuid@3.3.2: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
npm WARN deprecated superagent@3.8.3: Please upgrade to v7.0.2+ of superagent.  We have fixed numerous issues with streams, form-data, attach(), filesystem errors not bubbling up (ENOENTon attach()), and all tests are now passing.  See the releases tab for more information at <https://github.com/visionmedia/superagent/releases>. Thanks to @shadowgate15, @spence-s, and @niftylettuce. Superagent is sponsored by Forward Email at <https://forwardemail.net>.
npm WARN deprecated formidable@1.2.6: Please upgrade to latest, formidable@v2 or formidable@v3! Check these notes: https://bit.ly/2ZEqIau
/root/.nvm/versions/node/v14.19.0/bin/serverless -> /root/.nvm/versions/node/v14.19.0/lib/node_modules/serverless/bin/serverless.js
/root/.nvm/versions/node/v14.19.0/bin/sls -> /root/.nvm/versions/node/v14.19.0/lib/node_modules/serverless/bin/serverless.js

> serverless@3.2.1 postinstall /root/.nvm/versions/node/v14.19.0/lib/node_modules/serverless
> node ./scripts/postinstall.js

sh: node: command not found
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@~2.3.2 (node_modules/serverless/node_modules/chokidar/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})

npm ERR! code ELIFECYCLE
npm ERR! syscall spawn
npm ERR! file sh
npm ERR! errno ENOENT
npm ERR! serverless@3.2.1 postinstall: `node ./scripts/postinstall.js`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the serverless@3.2.1 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2022-02-20T08_54_42_876Z-debug.log