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I just got a new LG Gram 17" laptop and have shrunk the Windows partition to 50 GB. (To my surprise, the system already uses 45 GB of it!) Anyway, I would love to keep the ability to boot into native Windows. I have successfully installed Ubuntu Mate on another partition and dual boot works. However, I want my data on the Linux partition to be encrypted, and it seems that now the preferred method for Linux is encrypting the entire drive. Is there a not-too-complex way to encrypt my data that will leave the Windows partitions (not only the "C" drive but the other little partitions it uses) untouched?

Keith Bennett
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  • Hello, if you want to encrypt a partition, here's already an answer. The encryption for individual files are much simple and fail-safe method. For example, in the case, you want to rescue the OS and don't want to read your document to other people. GNU Privacy Guard GNUPG aka gpg is traditional and trustworthy. – Sadaharu Wakisaka Apr 18 '23 at 01:35
  • Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. – Community Apr 30 '23 at 09:45
  • @SadaharuWakisaka Thank you. I was aware that encryption of the home folder was possible, but read that this is no longer the preferred method of ensuring privacy. So I was looking for a way to encrypt the entire partition. Encrypting only the home directory leaves the rest of the system (especially /tmp) unencrypted. There may be other reasons as well, I don't know. – Keith Bennett May 01 '23 at 14:15
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    @KeithBennett, sounds professional. I am happy that you found the way. cryptsetup <option> <device name> would create a new encrypted partition. You can install a new Ubuntu or clone your MATE system onto it. Simplest way: Abandon Ubuntu installation and overwrite a new Ubuntu, installer can make an encrypted partition. Choose "something else" when it asks where to install. NOTE: only a few people on earth can open encrypted files/drives. No one can repair your OS or salvage data. – Sadaharu Wakisaka May 02 '23 at 01:23
  • @SadaharuWakisaka Thanks. Does this mean I could boot from a live Linux DVD, create the partition, run cryptsetup on it, and then run the Ubuntu installation on that partition? – Keith Bennett May 03 '23 at 04:28
  • @KeithBennett, Yes sir. It is the simplest and easiest way, I believe. Details: https://ubuntuhandbook.org/index.php/2021/06/encrypt-system-disk-installing-ubuntu/ – Sadaharu Wakisaka May 04 '23 at 01:32

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