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I have KeePass (.kbdx) database with key file (.keyx) that was created with KeePass2 on Windows. I'm able to open the database on Windows (KeePass2) or Mac (strongbox). However, on Ubuntu 20.04, which is a dual boot with the Windows machine and the databse is stored in a shared mount, I am unable to unlock.

In KeePassXC I get a an invalid credentials error which states that if this reoccurs the file may be corrupted; KeeWeb just refuses to open it. I can confirm the file is not corrupted as I can open after the error in Windows and am certain the password/keyfile are correct.

Also, I can open a different shared .kdbx with no .keyx in Ubuntu or Windows.

I believe the files should be cross-platform. Is there a reason a .keyx generated in Windows won't work in Ubuntu?

Edit I'm using the UI so I don't have exact commands to show but here is the process:

  1. Open KeepPassXC UI
  2. Select .kbdx
  3. Select .keyx
  4. Enter password

It returns with this message enter image description here

Obviously this looks like user error, but the same database password/keyx combo works in Windows.

al0
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  • Please [Edit] your Question and show us (copy and paste) the exact commands and error messages. – waltinator Feb 06 '21 at 19:47
  • There is the possibility that different line endings in Windows and Linux files may be the reason your keyfile isn't working. You could try saving the keyfile under a new name using a Linux text editor and try with that file. – Sebastian Feb 07 '21 at 17:03
  • @Sebastian Thanks for tip. I changed to linux line endings but still get the same error. – al0 Feb 07 '21 at 22:40
  • I recommend contacting the KeePassXC team directly. You can find them, and ask question, on https://github.com/keepassxreboot/keepassxc. I do also reccomend looking at:
    • https://github.com/keepassxreboot/keepassxc/issues/2863
    • https://github.com/keepassxreboot/keepassxc/issues/2834
    • https://github.com/keepassxreboot/keepassxc/issues/6390
     – BHeijden Apr 11 '21 at 05:30
  • I have a similar issue and to make things weirder when I copy the single keyx file directly from windows to my linux box I end up with two files x.keyx and x.keyx:Zone.Identifier:$DATA. To combat this I sent tthe key file through email.

    I am not sure why this happens but on both KeePassXC and KeePass2 it says:

    Failed to load specific file! The composite key is invalid! make sure the composite key is correct and try again...

    I am using the exact same key file from windows and it even works on my android, just not in Ubuntu 20.04

     – BrianBlaze Jul 13 '21 at 20:36

1 Answers1

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There are two versions of KeePassXC in the ubuntu software center... I should have checked the versions because I tried the second one on the list which was actually the latest version and it worked no problemThe correct keepassxc

BrianBlaze
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