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docs(deploy): the unlock at boot from melchior's ssh config, the address the FRITZ!Box keeps

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
This commit is contained in:
Tizian 「ティツィアーン」 2026-11-08 21:51:04 +01:00
commit cc70e09913
Signed by: raisondetredev
GPG key ID: 07F6FCF405488B64
1 changed files with 18 additions and 2 deletions
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20
deploy/host/README.md
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@ -90,8 +90,24 @@ for the later.
``` ```
The last line is dropbear's own host key, which melchior sees on port 2222 at the The last line is dropbear's own host key, which melchior sees on port 2222 at the
next boot. At that boot, at home: `ssh -p 2222 root@192.168.178.53` from melchior asks next boot. melchior's key isn't at one of ssh's default paths, so it is named for the
for the root disk's passphrase, and the boot goes on. The keyboard at the iMac still unlock in melchior's `~/.ssh/config`, its host key apart from sshd's:
```
Host balthasar-unlock
HostName 192.168.178.53
Port 2222
User root
IdentityFile ~/.ssh/raisondetredev@ramiel
IdentitiesOnly yes
HostKeyAlias balthasar-unlock
```
At the next boot, at home: `ssh balthasar-unlock` from melchior asks for the root
disk's passphrase, and the boot goes on. Both the boot image and the system ask the
FRITZ!Box for their address, differently (the system with a client ID), so the
FRITZ!Box keeps 192.168.178.53 for balthasar's MAC address, `00:50:B6:BF:FC:FF`
(step 1); without it, the system got another address than the boot image. The keyboard at the iMac still
works as before. Should the new image not open the disk, choose *the way back* in works as before. Should the new image not open the disk, choose *the way back* in
GRUB's menu at the iMac: it boots as before this step. Once the new images have GRUB's menu at the iMac: it boots as before this step. Once the new images have
booted: `sudo rm /etc/grub.d/41_dracut_fallback /boot/initrd.img-*.dracut && sudo update-grub`. booted: `sudo rm /etc/grub.d/41_dracut_fallback /boot/initrd.img-*.dracut && sudo update-grub`.