To access RetroPie via SSH using root account:

• Open file sshd_config located in etc/ssh:
  sudo nano /etc/ssh/sshd_config 
  • Find line:
    PermitRootLogin without-password
  • Comment it out (or delete) it and replace with:
    PermitRootLogin yes
  • Save changes (CTRL + X)
• Set root password:
  sudo passwd root
• Reboot your Raspberry Pi

Read more: RetroPie - enable SSH root access

Issue

Installing VMware Tools (vmware-install.pl) on Ubuntu Desktop 17.04. Installation gets stuck with the following prompt:

What is the location of the "ifconfig" program on your machine?

Read more: Installing VMware Tools on Ubuntu Desktop - what is the location of the "ifconfig"

Tar archive files generated by Plesk web server backups generate following errors when trying to open them with 7-ZIP (v7.90):

Error opening .tar archive - There are data after end of archive.

Read more: 7-ZIP - There are data after end of archive (Plesk tar backups)

Issue

Trying to run Linux based OS on Oracle VM VirtualBox. Following error is displayed:

Read more: This kernel requires following features not present on the CPU: pae