If you copy the data files of a VirtualBox machine to another PC without exporting it as an .ova appliance first, it's painful to get it into another VirtualBox installation. Thankfully there is a workaround:

• Create a new machine
• Copy the .vdi drive data into the new machine folder
• In the machine settings, add that .vdi as a hard drive, and remove the dummy .vdi you created when creating that machine.

Rails Long Term Support

Rails LTS provides security patches for old versions of Ruby on Rails (2.3, 3.2, 4.2 and 5.2)

• Prevents you from data breaches and liability risks
• Upgrade at your own pace
• Works with modern Rubies

Read more Show archive.org snapshot