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Editorial Team
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Asked: 2026-05-19T05:44:37+00:00

I followed every step given in this guide: http://help.github.com/linux-key-setup/ When I get to the

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I followed every step given in this guide:
http://help.github.com/linux-key-setup/

When I get to the end I am able to ssh to git@github.com, getting the response:

PTY allocation request failed on channel 0
Hi AlexBaranosky! You’ve successfully authenticated, but GitHub does not provide shell access.
Connection to github.com closed

But when I go to clone my repo it fails saying:

Permission denied (publickey).
fatal: The remote end hung up unexpectedly

I’ve used Github a lot, but this is my first use of it from an Ubuntu computer, is there something I am missing here?

Any help is greatly appreciated.

Alex

EDIT:

content of ssh -v git@github.com

alex@ubuntu:~/proj$ ssh -v git@github.com
OpenSSH_5.3p1 Debian-3ubuntu4, OpenSSL 0.9.8k 25 Mar 2009
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to github.com [207.97.227.239] port 22.
debug1: Connection established.
debug1: identity file /home/alex/.ssh/identity type -1
debug1: identity file /home/alex/.ssh/id_rsa type 1
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
debug1: identity file /home/alex/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1p1 Debian-5github2
debug1: match: OpenSSH_5.1p1 Debian-5github2 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.3p1 Debian-3ubuntu4
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'github.com' is known and matches the RSA host key.
debug1: Found key in /home/alex/.ssh/known_hosts:1
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /home/alex/.ssh/id_rsa
debug1: Remote: Forced command: gerve AlexBaranosky
debug1: Remote: Port forwarding disabled.
debug1: Remote: X11 forwarding disabled.
debug1: Remote: Agent forwarding disabled.
debug1: Remote: Pty allocation disabled.
debug1: Server accepts key: pkalg ssh-rsa blen 277
debug1: Remote: Forced command: gerve AlexBaranosky
debug1: Remote: Port forwarding disabled.
debug1: Remote: X11 forwarding disabled.
debug1: Remote: Agent forwarding disabled.
debug1: Remote: Pty allocation disabled.
debug1: Authentication succeeded (publickey).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = en_US.utf8
PTY allocation request failed on channel 0
Hi AlexBaranosky! You've successfully authenticated, but GitHub does not provide shell access.
              debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0
debug1: channel 0: free: client-session, nchannels 1
Connection to github.com closed.
Transferred: sent 2592, received 2904 bytes, in 0.1 seconds
Bytes per second: sent 44942.9, received 50352.7
debug1: Exit status 1

Output from running: git clone git@github.com:AlexBaranosky/Sportello.git

fatal: could not create work tree dir 'Sportello'.: Permission denied
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1 Answer

  1. Editorial Team

    Did you run all of the commands in the Github guide as root? Given the solution you noted already, this is the only scenario I can imagine, currently.

    Working as root, in any aspect, is insanely dangerous, and should be avoided if at all possible.

    I highly advise re-running those instructions as your own user. I second Ray’s suggestion of trying it again with -v, we can help you from that point. Using root at all, especially for this development+push process, is just dangerous. All it takes is for you to delete a tree (rm -rf tree*) and accidentally add a space between tree and *, bam, tons of content lost. And you could do a lot worse too.

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