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See the "--allow-discards" option in the cryptsetup(8) man page and the "discard" option in the crypttab(5) man page.


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Here's how you convert dropbear's key. The startup scripts are a little wonky for me too...


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Yesterday I wrote an answer in Initramfs + Luks - only one password prompt that answers your second question, too: There is a script included with luks that you can use to derive a key for device B from an opened device A. Hence you only have to type the password for your root device and the keys for all other devices will be calculated from that. (But: The ...


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On this wiki page (in german, I sadly didn't find an equivalent in english) it is suggested that you use the script /lib/cryptsetup/scripts/decrypt_derived to generate a key from the opened root device. I will try to translate the important parts, but I have NOT tried the procedure. To add the key, you would have to execute (as root) mkdir /mnt/ram ...


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Finally, I was able to create an encrypted swap as follows: create a partition for swap using fdisk or gparted (I used gparted), but do not format it as swap, instead, you could choose "cleared" as a format type in gparted. Add the following to /etc/crypttab swap_crypt /path/to/swap/partition /dev/urandom swap Then add the swap_crypt to ...


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I have the same problem. It seems to be an issue with Plymouth not capturing keyboard input, at this step in the boot process Work Around: update boot parameters in /etc/default/grub and change "splash" to "nosplash". After that you can run update-grub and you will get a console based password prompt instead of the Plymouth one. Not as pretty, but it's ...


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type in terminal: qdbus --system org.freedesktop.UDisks /org/freedesktop/UDisks/devices/sdX org.freedesktop.UDisks.Device.LuksLock NULL explanation: qdbus: a communication-interface for qt-based applications --system: connect to the system bus org.freedesktop.UDisks: the service to connect to /org/freedesktop/UDisks/devices/sdX: the path to the object ...



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