git clone中的报错问题解决：git@github.com: Permission denied (publickey)

报错：

Submodule path ‘kernels/3rdparty/llm-awq’: checked out
‘19a5a2c9db47f69a2851c83fea90f81ed49269ab’ Submodule path
‘kernels/3rdparty/nvbench’: checked out
‘75212298727e8f6e1df9215f2fcb47c8c721ffc9’ Submodule path
‘kernels/3rdparty/torch-int’: checked out
‘65266db1eadba5ca78941b789803929e6e6c6856’ Submodule
‘submodules/cutlass’ (git@github.com:NVIDIA/cutlass.git) registered
for path ‘kernels/3rdparty/torch-int/submodules/cutlass’ Cloning into
‘/home/Atom/kernels/3rdparty/torch-int/submodules/cutlass’…
git@github.com: Permission denied (publickey). fatal: Could not read
from remote repository.

Please make sure you have the correct access rights and the repository
exists. fatal: clone of ‘git@github.com:NVIDIA/cutlass.git’ into
submodule path
‘/home/Atom/kernels/3rdparty/torch-int/submodules/cutlass’ failed
Failed to clone ‘submodules/cutlass’. Retry scheduled Cloning into
‘/home/Atom/kernels/3rdparty/torch-int/submodules/cutlass’…
git@github.com: Permission denied (publickey). fatal: Could not read
from remote repository.

Please make sure you have the correct access rights and the repository
exists. fatal: clone of ‘git@github.com:NVIDIA/cutlass.git’ into
submodule path
‘/home/Atom/kernels/3rdparty/torch-int/submodules/cutlass’ failed
Failed to clone ‘submodules/cutlass’ a second time, aborting Failed to
recurse into submodule path ‘kernels/3rdparty/torch-int’

解决方法

如果你没有ssh key的话，输入命令：ssh-keygen -t rsa -C "xx@example.com"， youremail@example.com改为自己的邮箱即可，途中会让你输入密码啥的，不需要管，一路回车即可，会生成你的ssh key。（如果重新生成的话会覆盖之前的ssh key。）

2.然后再执行命令：

ssh -v git@github.com

最后两句会出现：

    No more authentication methods to try.  Permission denied (publickey).

3.这时候再下输入：

ssh-agent -s

然后会提示类似的信息：

4.接着再输入：

ssh-add ~/.ssh/id_rsa
eval `ssh-agent -s`

这时候应该会提示：

然后再执行一遍：

ssh-add ~/.ssh/id_rsa

5.打开你刚刚生成的id_rsa.pub，

vi /root/.ssh/id_rsa.pub

将里面的内容复制，进入你的github账号，在settings下，SSH and GPG keys下new SSH key，title随便取一个名字，然后将id_rsa.pub里的内容复制到Key中，完成后Add SSH Key。

6.最后一步，验证Key

输入命令：

ssh -T git@github.com

提示：如下信息就OK了。

提示：Hi xxx! You’ve successfully authenticated, but GitHub does not provide shell access. 问题就解决啦