git: can't push (unpacker error) related to permission issues

Question

I have this problem when i try to push in git:

error: insufficient permission for adding an object to repository database ./objects

fatal: failed to write o         


        

Answer 1

For the permission error using git repository on AWS instance, I successfully solved it by creating a group, and assigning it to the repository folder recursively(-R), and give the written right to this group, and then assign the default aws instance user(ec2-user or ubuntu) to this group.

1. Create a goup name share_group or something else

     sudo groupadd share_group

2. change the repository folder from 'root' group to 'share_group'

     sudo chgrp -R share_group /path/to/your/repository

3. add the write authority to share_group

     sudo chmod -R g+w /path/to/your/repository

4. The last step is to assign current user--default user when login (by default ec2 is 'ec2-user', user of ubuntu instance is 'ubuntu' in ubuntu on aws) to share_group. I am using ubuntu insance on aws, so my default user is ubuntu.

     sudo usermod -a -G share_group ubuntu

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By the way, to see the ownership of the folder or file just type:

    ls -l  /path/to/your/repository

'

Output:

    drwxr-x--x  2 root shared_group

(explanation please see:https://wiki.archlinux.org/index.php/File_permissions_and_attributes).

After step 3, you will see

    drwx--x--x  2 root root

changed to

    drwxr-x--x  2 root share_group 

In this case, I did not assign user 'ubuntu' to root group, for the consideration of security. You can just try to assign you default user to root according to step 4 (just skip the first 3 steps

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In another way, tried the solution by :

    chmod -Rf u+w /path/to/git/repo/objects

It did not work for me, I think it should be the reason that my repository folder belong to the root user, not to Ubuntu user, and 'git' by default use the default user(ec2-user or Ubuntu user. You can try to change the user and test it.

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Finally, below code definitely work for me, but 777 is not good for security

    sudo chmod -R 777 /path/to/your/repo