You could also do: ssh-copy-id -o ControlPath=none username@hostname
without killing the existing SSH connection. -- 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/1342412 Title: ssh-copy-id hangs when using ControlMaster auto Status in portable OpenSSH: Unknown Status in openssh package in Ubuntu: Confirmed Bug description: [Workaround] ssh -O exit hostname # this will kill all ssh connection to that host ssh-copy-id username@hostname # now it works because it's the first connection # continue using ssh as normal. Thanks to Ruben Laguna (ecerulm) in comment 7. [Original Description] On ubuntu 14.04 amd 64, running openssh-client 1:6.6p1-2ubuntu2, when using in ~/ssh/config ControlMaster auto If you open an ssh connection to an host, and after try to run ssh-copy-id on the same host, trying to reuse the already opened connection, ssh-copy-id hangs. If you press CTRL-D, the script goes on, without installing any key. It seems that the script hangs at lines REMOTE_VERSION=$(ssh -v -o PreferredAuthentications=',' "$@" 2>&1 | sed -ne 's/.*remote software version //p') Found another bug report here: http://www.gossamer- threads.com/lists/openssh/bugs/57363 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: openssh-client 1:6.6p1-2ubuntu2 ProcVersionSignature: Ubuntu 3.13.0-32.56-generic 3.13.11.4 Uname: Linux 3.13.0-32-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 CurrentDesktop: Unity Date: Wed Jul 16 01:15:34 2014 InstallationDate: Installed on 2013-10-12 (276 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) RelatedPackageVersions: ssh-askpass N/A libpam-ssh N/A keychain N/A ssh-askpass-gnome 1:6.6p1-2ubuntu2 SSHClientVersion: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2, OpenSSL 1.0.1f 6 Jan 2014 SourcePackage: openssh UpgradeStatus: Upgraded to trusty on 2014-06-10 (35 days ago) modified.conffile..etc.ssh.ssh.config: [modified] mtime.conffile..etc.ssh.ssh.config: 2014-06-19T17:39:06.965908 To manage notifications about this bug go to: https://bugs.launchpad.net/openssh/+bug/1342412/+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