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1. DROPBEAR SSH RUNNING ON THE REMOTE HOST IS PRIOR TO 2016.74 INSTALL
2. DROPBEAR SSH RUNNING ON THE REMOTE HOST IS PRIOR TO 2016.74 DRIVERS
3. DROPBEAR SSH RUNNING ON THE REMOTE HOST IS PRIOR TO 2016.74 FULL
4. DROPBEAR SSH RUNNING ON THE REMOTE HOST IS PRIOR TO 2016.74 SOFTWARE
5. DROPBEAR SSH RUNNING ON THE REMOTE HOST IS PRIOR TO 2016.74 PASSWORD

Sudo ssh-keygen -t rsa -b 4096 -f ssh_host_rsa_key -N "" -m PEM < /dev/null Sudo ssh-keygen -t ed25519 -f ssh_host_ed25519_key -N "" -m PEM < /dev/null Remove at least one of these ssh hostkeys, and regenerate it in the /etc/ssh directory with the -m PEM option. Note: If you get the Error: Unrecognised key type message while the mkinitcpio-dropbear hook is running: Then, regenerate the initramfs: sudo mkinitcpio -P You might also want to add the keymap hook after block, and set up a different keymap in /etc/nf, if you want to use a non-US keyboard layout for entering your encryption passphrase. The line should look like this: HOOKS=(base udev autodetect modconf block sleep netconf dropbear encryptssh filesystems keyboard fsck) More Information on this.Īlso, insert the hooks sleep netconf dropbear encryptssh before filesystem in the line HOOKS=().

DROPBEAR SSH RUNNING ON THE REMOTE HOST IS PRIOR TO 2016.74 DRIVERS

These are needed for the initramfs to contain the ethernet and usb drivers (the ethernet is connected over usb internally). sudo cp -r /boot /root/boot_rescueĬhange the line MODULES=() to MODULES=(g_cdc usb_f_acm usb_f_ecm smsc95xx g_ether) If you break your encrypted system, you can simply overwrite the /boot/ partition with the backup, and thus easily boot the rescue system to fix things. Or, even better, backup the whole /boot/ partition. You might want to backup the files we will be editing: sudo cp /etc/nf /etc/ You can then simply use ssh pi, and ssh pi-rescue to unlock at boot. The matching lines in your ~/.ssh/config file should be something like this: Host pi-rescue Then, on the pi: sudo cp ~/.ssh/authorized_keys /etc/dropbear/root_key Transfer it to the pi: ssh-copy-id -i ~/.ssh/pi_rescue_key.pub IP address is probably different, of course) So, on your primary computer, generate a new one: ssh-keygen -t rsa -b 4096 -a 100 -f ~/.ssh/pi_rescue_key Mkinitcpio-dropbear only seems to be able to deal with RSA keys. Note: yay is an especially handy AUR helper on Arch Linux ARM, since it can easily skip architecture checks when building pkgbuilds with an officially unsupported arch. after installing yay, use: yay -S mkinitcpio-utils mkinitcpio-netconf mkinitcpio-dropbear

DROPBEAR SSH RUNNING ON THE REMOTE HOST IS PRIOR TO 2016.74 INSTALL

Using an AUR helper is not strictly necessary, as you can install the mkinitcpio packages manually from the AUR, but it is probably more convenient.Į.g. You need the following AUR packages: mkinitcpio-utils mkinitcpio-netconf mkinitcpio-dropbear. To be on the safe side, reboot your system now, and log in again. Use visudo and append the line alarm ALL=(ALL). Use the usual arch wiki installation guide for reference.Įnable sudo (you need it to build packages from AUR). You might also want to set a locale, keymap, hostname and everything else you want to have in the rescue system. Pacman -S -needed sudo git rsync base-devel uboot-tools dropbear On the new system on the pi, upgrade, and install the necessary software:

DROPBEAR SSH RUNNING ON THE REMOTE HOST IS PRIOR TO 2016.74 PASSWORD

Now put the sdcard in the pi, apply power, log in (over ssh if you want) as user alarm, password alarm. You should overwrite the third partition with random bytes, to achieve greater forensic resistance: sudo dd if=/dev/urandom of=/dev/mmcblk0p3 bs=4M status=progress conv=fsync Make a third partition from the remaining space, it will be our encrypted system.

DROPBEAR SSH RUNNING ON THE REMOTE HOST IS PRIOR TO 2016.74 SOFTWARE

The second partition will be unencrypted and used for the installation system, use 3G or more if you want to include more software here. The boot partition needs to be larger than 100M, use e.g. At this time it is 68B3 537F 39A3 13B3 E574 D067 7719 3F15 2BDB E6A6 Installationīasically, follow the installation instructions from, with a few changes: Make sure to verify the GPG-key from Arch Linux ARM Build System and its fingerprint. Get The Image and check the signature wget The 32-bit version images are named, and are usable for the Raspberry Pi version 2 and 3, while the 64-bit version images are named .įor different setup options, see the end of the document.

DROPBEAR SSH RUNNING ON THE REMOTE HOST IS PRIOR TO 2016.74 FULL

There are multiple ways to get a full disk encrypted arch linux system on raspberry. Arch Linux ARM 64 on Raspberry Pi 3 B+ With Full Disk Encryption And SSH Unlock: 2018 Edition