Host Folder

The most important benefit of the Frankenwallet besides the "cold" environment is the gateway to your host machine, by reading & writing files to the host folder, so you should find this first:

How to find your host folder


you are very likely to see your host “usual” computer filesystems if you:

  • run “Files” (the thing that looks like a folder)
  • select + Other Locations
  • select your familiar “Home” folder by its label and/or size.
  • Only continue with these instructions if you don’t see it there...

add a bookmark for your home folder

  • also, any other commonly used folders on the "host machine" so they appear in the left sidebar of the Files app.
  • keep in mind bookmarks are only accessible when your host machine drive is mounted... which it won't do automatically.

How to permanently mount your host folder (optional, for experts)

... and only if you will only ever use your Frankenwallet on the same machine!

WARNING Perhaps not a good idea since an inaccessible filesystem in /etc/fstab can cause serious delays in the booking process.

  • In fact, you won't be able to fix booting problems from corrupted Frankenwallet system files (e.g. if your host partition changes name, or you mess up the fstab syntax) without supplying your high-security Frankenwallet password via LUKS to mount it on a second machine... which would also have to be a "cold" machine if you don't want that password to be compromised.

So if you want to try it, here is what you would do:

open Terminal

sudo lsblk

  • from the size you can probably tell which “sd??” combination is your computer partition where you normally keep your files.
  • note that term sd?? (as per screenshot here; my home directory / folder name is sda2)

mkdir /dirty

add this line to the end of your /etc/fstab

  • if host system is Linux:
    • /dev/sda2 /dirty ext4 defaults 0 1
    • If you’re the first user on your Linux system, you’ll be able to write here without “sudo” since your user ID will be the same.
      • Otherwise you’ll have to “sudo” to write into this filesystem.
  • if host system is Windows:
    • /dev/sd?? /dirty ntfs defaults 0 1
    • By default NTFS permissions are wide open so you’ll be able to read & write here: and that includes your Windows OS files, so BE CAREFUL!
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