Decrypt ubuntu filesystem
If you have encrypted your drive with one of the latest ubuntu version, this is how to decrypt using the command line.
A few weeks ago I had a problem with my ubuntu (as usual) and I had no clue how to decrypt my file, which it's encrypted by my company's policy.
Optional: run a live ubuntu if your system is not working properly
Open a terminal and type
sudo ecryptfs-unwrap-passphrase. Most of the time this should do it.
Let's start opening a terminal and typing:
Look for your encrypted partition, it might look something similar to:
nvme0n1 259:0 0 953.9G 0 disk ├─nvme0n1p1 259:1 0 512M 0 part ├─nvme0n1p2 259:2 0 488M 0 part └─nvme0n1p3 259:3 0 952.9G 0 part
Then to decrypt:
cryptsetup luksOpen <path_to_encrypted> <name_for_unencrypted_partition> # This will prompt a password
cryptsetup luksOpen /dev/mapper/nvme0n1p3 woile
Once decrypted type again:
And you'll see your partition unencrypted, something like this:
nvme0n1 259:0 0 953.9G 0 disk ├─nvme0n1p1 259:1 0 512M 0 part ├─nvme0n1p2 259:2 0 488M 0 part └─nvme0n1p3 259:3 0 952.9G 0 part └─woile 253:0 0 952.9G 0 crypt
Now it's time to mount the new partition
- create a directory
- mount unencrypted partition
mkdir /media/tmp_mount_location # (1) mount /dev/mapper/woile /media/tmp_mount_location # (2)
That's it, if you go to /media/tmp_mount_location, your files should be there.
This is mostly a mental note for me.