I don't know much about dropbear but from your explanation it does indeed sound like this is an upstream OpenSSH bug that should be reported at https://bugzilla.mindrot.org/.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1966886 Title: ssh-copy-id and Dropbear Server Status in openssh package in Ubuntu: New Bug description: on Dropbear SSH Servers ssh-copy-id installs the key in /etc/dropbear/authorized_keys only the openwrt dropbear server uses that path https://github.com/openwrt/openwrt/blob/2211ee0037764e1c6b1576fe7a0975722cd4acdc/package/network/services/dropbear/patches/100-pubkey_path.patch the upstream dropbear server uses the normal path ~/.ssh/authorized_keys To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1966886/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp