Replace etc directory with backup

So I recently had to reinstall Manjaro, but first did a backup of my home and etc directories. However, when I try to replace my etc directory with the one from the backup, everything on my computer stops working and I have to reinstall Manjaro again. Are there any solutions to this or anything that I am doing wrong?

Also, it seems to take a reeeally long time to copy over my home directory from my external drive. Am I doing something wrong here?

This topic is closely related to the previous topic - so for the sake of clarity and understanding - let’s keep them together.

A post was merged into an existing topic: Restore Manjaro to external drive using live cd