Ubuntu: Does clean install remove non-standard root directories?



Question:

I need to clean install Ubuntu 12.04 and I understand that this will remove everything that was in the /home directory. In addition to standard folders such as /var, /etc, /usr and the such, let's say I have other directories such as:

  1. /backup and /backup2 which are empty unless I mount the corresponding hard drives. So it wouldn't be too much of a problem if the folders are deleted, I'll just re-create them and mount the disks.
  2. /others which contains some documents (don't ask me why it's there);

Would non-standard folders like /others disappear upon clean install, or will the system ignore folders that do not seem relevant to Ubuntu?


Solution:1

No, it will remove only system directories if you will install it on non-formatted drive. More, the /etc/apt/sources.list will be untouched and everything in /etc/apt/sources.list.d/ will be removed. Also, /usr/local will be left untouched in this process.

But Clean Install option, AFAIK, actually formats the drive, so your docs and folders on / will be lost.


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