git – github changed it’s certificate/key how to fix the issue from my end?

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UPDATE the issue was with my VirtualBox VM disk issue – fixed it using askubuntu.com/questions/697190/fsck-error-on-boot-dev-sda6-unexpected-inconsistency-run-fsck-manually
I could not follow instructions from here github.blog/2023-03-23-we-updated-our-rsa-ssh-host-key/

all good now

screenshot

I knot github changed it’s SSH keys

I was able to push before

now I am getting this

what should I do?

thank you

appsecstudent@appsecstudent-VirtualBox:~/git3/appsec2/appsec2$

appsecstudent@appsecstudent-VirtualBox:~/git3/appsec2/appsec2$ git push

hostfile_replace_entries: mkstemp: Read-only file system

update_known_hosts: hostfile_replace_entries failed for /home/appsecstudent/.ssh/known_hosts: Read-only file system

error: update_ref failed for ref ‘refs/remotes/origin/main’: cannot lock ref ‘refs/remotes/origin/main’: Unable to create ‘/home/appsecstudent/git3/appsec2/appsec2/.git/refs/remotes/origin/main.lock’: Read-only file system

Everything up-to-date

appsecstudent@appsecstudent-VirtualBox:~/git3/appsec2/appsec2$

appsecstudent@appsecstudent-VirtualBox:~/git3/appsec2/appsec2$

appsecstudent@appsecstudent-VirtualBox:~/git3/appsec2/appsec2$ sudo git push

The authenticity of host ‘github.com (140.82.113.4)’ can’t be established.

ED25519 key fingerprint is SHA256:+DiY3wvvV6TuJJhbpZisF/zLDA0zPMSvHdkr4UvCOqU.

This key is not known by any other names

Are you sure you want to continue connecting (yes/no/[fingerprint])? yes

Could not create directory ‘/root/.ssh’ (Read-only file system).

Failed to add the host to the list of known hosts (/root/.ssh/known_hosts).

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.

appsecstudent@appsecstudent-VirtualBox:~/git3/appsec2/appsec2$

appsecstudent@appsecstudent-VirtualBox:~/git3/appsec2/appsec2$ sudo git push -u origin main

The authenticity of host ‘github.com (140.82.113.4)’ can’t be established.

ED25519 key fingerprint is SHA256:+DiY3wvvV6TuJJhbpZisF/zLDA0zPMSvHdkr4UvCOqU.

This key is not known by any other names

Are you sure you want to continue connecting (yes/no/[fingerprint])? yes

Could not create directory ‘/root/.ssh’ (Read-only file system).

Failed to add the host to the list of known hosts (/root/.ssh/known_hosts).

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.

appsecstudent@appsecstudent-VirtualBox:~/git3/appsec2/appsec2$

I can run sudo commands
I was able to push before

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