Christopher Juckins

SysAdmin Tips, Tricks and other Software Tools

User Tools

Site Tools


VirtualBox running Ubuntu 20 Notes

Need to install, test. Migrate Unifi controller to it.

Upgrade 18.04 to 20.04

  • After following these steps and booting into new kernel, machine would not start
  • Booted into old kernel, and ran an update for new packages. New kernel was downloaded and installed.
  • Had a new kernel not been available, I suspect reinstalling the original kernel that was failing would have fixed the problem

Fix /swapfile

Change hostname

Gmail SMTP on Ubuntu 20

  • Install postfix and choose "Internet site"
  • Accept suggested FQDN
  • Don't add another user for /etc/aliases (root is already there)
  • For comma-separated list of domains, accept defaults
  • Accept defaults for everything else, such as synchronous mail, network blocks, etc.
  • Follow rest of instructions
  • Send test message
ubuntu_20_notes.txt · Last modified: 2021/05/24 14:39 by juckins