[Bug 1966886] Re: ssh-copy-id and Dropbear Server

[Gertjan]

Just to add a voice to this: we see the same things migrating from 18.04
to 22.04 while controlling some embedded ARM/Debian devices running
dropbear.  The key are indeed appearing in the wrong place as stated
above and the log in does not proceed as expected. We can work around
this for production systems, but the behaviour is confusing (and
obviously not consistent between 18.04 and 22.04).

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https://bugs.launchpad.net/bugs/1966886

Title:
  ssh-copy-id and Dropbear Server

Status in openssh package in Ubuntu:
  Triaged

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

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