Are the SSH keys valid?

When, not if, you get this error you most probably have the wrong keys listed in /home/git/.ssh/authorized_keys:

$ git  clone git@xxx.com:gitosis-admin.git 
Initialized empty Git repository in /Users/christian/Documents/Projects/gitosis-admin/.git/
fatal: 'gitosis-admin.git': unable to chdir or not a git archive
fatal: The remote end hung up unexpectedly

Try removing the keys in authorized_keys one by one, and verify that the names of the users match the ones in .gitosis.conf

http://scie.nti.st/2007/11/14/hosting-git-repositories-the-easy-and-secure-way

Try using the full path to the repository

$ git clone git@xxx.com::/home/git/repositories/xxx.git

Check if the repository exists

$ cd /home/git/repositories/xxx.git

$ git clone /home/git/repositories/xxx.git

What does SSH say?

ssh -v git@xxx.com

Use Google

http://stackoverflow.com/questions/1264262/connecting-to-gitosis-server-through-an-ssh-tunnel http://stackoverflow.com/questions/733057/can-git-work-via-ssh-port-forwarding

GIT_USER=git
SERVER=xxx.com
APP=xxx

touch tmp/.gitignore log/.gitignore vendor/.gitignore
find . -type d -empty | grep -v "vendor" | grep -v ".git" | grep -v "tmp" | xargs -I xxx touch xxx/.gitignore

cat <<EOF >>.gitignore
.DS_Store
log/*.log
tmp/**/*
config/database.yml
db/*.sqlite3
*.swp
Capfile
EOF

git init
git add .
git commit -m "initial commit" 
git remote add origin $GIT_USER@$SERVER:$APP.git
git push origin master