Cloning an Ubuntu Instance

Don't forget, you might need it later again

Another question that I unfortunately had to answer myself several times because I am so forgetful: How do I quickly set up a functionally identical Ubuntu duplicate?¹ In the past, we had to fiddle around with dpkg --get-selections and dpkg --set-selections. Today, it’s easier — with apt-clone:

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Solution

sudo apt-get install openssh-client openssh-sever apt-clone (@Master)
Install the base version of the same Ubuntu Release (@Slave)
sudo apt-get install openssh-client openssh-sever apt-clone (@Slave)
sudo apt-clone clone . (@Master)
scp apt-clone-state-[Master].tar.gz [Slave] (@Master)
sudo apt-clone restore apt-clone-state-[Master].tar.gz (@Slave)