无法推送到我服务器上的git存储库

Question

I want to have two git repositories on my server. One of them belongs to someone else. I copy their ssh keys onto my account:

sudo cp /home/otheruser/.ssh/id_rsa id_rsa
sudo cp /home/otheruser/.ssh/id_rsa.pub id_rsa.pub
git clone git@github.com:otheruser/Gateway.git
git remote show origin
* remote origin
Fetch URL: git@github.com:otheruser/Gateway.git
Push  URL: git@github.com:otheruser/Gateway.git
HEAD branch: master
Remote branches:
...

Now I want to copy some of these branches into my own git account:

git remote add tempgateway git@github.com:myuser/TemporaryGateway.git
git remote -v
origin  git@github.com:otheruser/Gateway.git (fetch)
origin  git@github.com:otheruser/Gateway.git (push)
tempgateway git@github.com:myuser/TemporaryGateway.git (fetch)
tempgateway git@github.com:myuser/TemporaryGateway.git (push)

But it appears at the moment that ssh authentication fails when I try to reach my git repository:

git remote show tempgateway
ERROR: Repository not found.
fatal: The remote end hung up unexpectedly

So I generate ssh keys:

ssh-keygen -t rsa -f ~/.ssh/tempgateway.id_rsa
ls -l
-rw------- 1 myuser myuser 1675 2014-01-02 15:39 id_rsa
-rw-r--r-- 1 myuser myuser  399 2014-01-02 15:41 id_rsa.pub
-rw-r--r-- 1 myuser myuser 1768 2014-01-02 16:22 known_hosts
-rw------- 1 myuser myuser 1679 2014-01-02 16:55 tempgateway.id_rsa
-rw-r--r-- 1 myuser myuser  401 2014-01-02 16:55 tempgateway.id_rsa.pub

Then I add the config file and enter the following:

Host github.com
    HostName github.com
    PreferredAuthentications publickey
    IdentityFile ~/.ssh/id_rsa

Host tempgateway.github.com
    HostName github.com
    PreferredAuthentications publickey
    IdentityFile ~/.ssh/tempgateway.id_rsa

I add to ssh:

ssh-add ~/.ssh/id_rsa
ssh-add ~/.ssh/tempgateway.id_rsa

ssh-add -l

2048 cb:cf:15:9d:6d:73:ac:d0:b2:8e:df:xx:xx:xx:xx:xx ~/.ssh/id_rsa (RSA)
2048 cd:f3:f8:2e:8d:53:3e:59:1b:38:68:xx:xx:xx:xx:xx ~/.ssh/tempgateway.id_rsa (RSA)

Then add the public key for tempgateway to my github account.

To test I've done this all correctly, I did the following check:

ssh -T git@tempgateway.github.com
Hi MyUser! You've successfully authenticated, but GitHub does not provide shell access.
ssh -T git@github.com
Hi OtherUser! You've successfully authenticated, but GitHub does not provide shell access.

Now while I am able to show remotes still for origin, when I try to show remotes for tempgateway I get the following still:

git remote show tempgateway
ERROR: Repository not found.
fatal: The remote end hung up unexpectedly

git push tempgateway origin/master
ERROR: Repository not found.
fatal: The remote end hung up unexpectedly

Why am I able to ssh into that git repository, but I cannot show the origin or push to it?

Answer 1

If the SSH access is working, as you have shown it to be, then I would ensure the new remote repo is initialized (or copied) properly. If not, then git will not recognise it as a repo.

Edit:

Sorry, I didn't notice you are using github. You won't need to bother with the above then.

But I did notice that in using different SSH key pairs for the two accounts, you haven't made use of tempgateway.github.com when you ran the config commands in setting up the new remote repository. Try editing .git/config and using the new SSH identity name you created in the remote URL.

The output of the git remote -v command should probably be more like

tempgateway git@tempgateway.github.com:myuser/TemporaryGateway.git (fetch)
tempgateway git@tempgateway.github.com:myuser/TemporaryGateway.git (push)

than

tempgateway git@github.com:myuser/TemporaryGateway.git (fetch)
tempgateway git@github.com:myuser/TemporaryGateway.git (push)