[Help + Workaround] Encrypted Drive won't boot after System Update | PureBoot | Librem Key | Cryptsetup | Busybox | Initramfs

my Librem 15v4 with PureBoot + LibremKey and encryption disk with Swap Encryption too won’t start after update!

So i made a fresh clean install, LibremKey and encryption drive works well.
BUT: If if type in the terminal:

sudo apt update && sudo apt full-upgrade

After the update you can read this:

update-initramfs: Generating /boot/initrd.img-4.19 0-5-amd64
cryptsetup: WARNING: Resume target luks-d34…
uses a key file

After reboot after disk encryption password the system can’t encrypt the drive -> Only a black terminal with the text

busybox …

How i can update my system so that it boot after updates?

-> Workaround for now:

Create the portions manuel with new install:
1150MiB = 1.1GB boot /boot ext4
Rest of for your system / root ext4 with luks disk encryption set password
8.8GiB swaplinux
Problem: Only your OS and Data are with luks encrypted, not the swap


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PS: If you want a honest review about the librem 15v4: