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A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

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Remote solution to decrypt disk at boot (jlai.lu)

submitted 11 months ago by [email protected] to c/[email protected]

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Hi there ! I have a little box at home, hosting some little services for personal use under freebsd with a full disk encryption (geli). I'm never at home and long power outage often occurs so I always need to come back home to type my passphrase to decrypt the disk.

I was searching this week a solution to do it remotely and found the "poor-guy-kvm" solutions turning a Raspberry like board (beaglebone black in my case) in a hid keyboard. It works fine once the computer has booted but once reboot when the passphrase is asked before it loads the loader menu, nothing. When I plug an ordinary USB keyboard I can type my passphrase so USB module is loaded.

Am I missing something ? Am I trying something impossible ?

(I could've asked on freebsd forum but... Have to suscribe, presentation, etc... Long journey)

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[–] [email protected] 3 points 11 months ago (1 children)

Did you try this: https://github.com/touchgadget/usbkwa ?

I use this to unlock Windows when I WOL it.

[–] [email protected] 1 points 11 months ago

Hmm seems to be hid keyboard "emulator" too. Having tried this kind of solution makes me think I have a problem with the hid module at boot so I will maybe abandoned this solution, will see. Thanks for your answer !