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You might not able to reinstall without formatting (and maybe re-arranging your partitions in a clever manner) your system BUT you will have to tell more details to answer your question. And: don't worry: There is nothing you can't backup, and restore later.

  • Do you already have a separate /home partition? If not, do it next time, it makes totally sense because you can reinstall your system (/ and /boot are affected) without touching your home directory /home.
  • What program configurations do you want to save? Some (like firefox, thunderbird, shotwell, keyrings, ...) are stored in hidden directories in your /home/. So, it is sufficient to copy your entire home directory including hidden files and folders restore it later.
  • If you want to save other scripts or configurations (like openvpn, vpn, or repos you added) you need to backup /etc/ and later restore the relevant part of it.

You might not able to reinstall without formatting (and maybe re-arranging your partitions in a clever manner) your system BUT you will have to tell more details to answer your question. And: don't worry: There is nothing you can't backup, and restore later.

  • Do you already have a separate /home partition? If not, do it next time, it makes totally sense because you can reinstall your system (/ and /boot are affected) without touching your home directory /home.
  • What program configurations do you want to save? Some (like firefox, thunderbird, shotwell, keyrings, ...) are stored in hidden directories in your /home/. So, it is sufficient to copy your entire home directory including hidden files and folders restore it later.
  • If you want to save other scripts or configurations (like openvpn, vpn, vpnc, cron-jobs, rc.d, or repos you added) you need to backup /etc/ and later restore the relevant part of it.

You might not able to reinstall without formatting your system (and maybe re-arranging your partitions in a clever manner) your system BUT you will have to tell us more details to answer your question. And: don't worry: There is nothing you can't backup, and restore later.

  • Do you already have a separate /home partition? If not, do it next time, it makes totally sense because you can reinstall your system (/ and /boot are affected) without touching your home directory /home.
  • What program configurations do you want to save? Some (like firefox, thunderbird, shotwell, keyrings, ...) are stored in hidden directories in your /home/. So, it is sufficient to copy your entire home directory including hidden files and folders restore it later.
  • If you want to save other scripts or configurations (like openvpn, vpnc, cron-jobs, rc.d, or repos you added) you need to backup /etc/ and later restore the relevant part of it.

You might not able to reinstall without formatting your system (and maybe re-arranging your partitions in a clever manner) BUT you will have to tell us more details to answer your question. And: don't worry: There is nothing you can't backup, and restore later.

  • Do you already have a separate /home partition? If not, do it next time, it makes totally sense because you can reinstall your system (/ and /boot are affected) without touching your home directory /home.
  • What program configurations do you want to save? Some Many (like gnome-settings, firefox, thunderbird, shotwell, keyrings, ...) are stored in hidden directories in your /home/. So, it is sufficient to copy your entire home directory including hidden files and folders folders, and restore it later.
  • If you want to save other scripts or configurations (like openvpn, vpnc, cron-jobs, rc.d, or repos you added) you need to backup /etc/ and later restore the relevant part of it.