在将带有 Capistrno 的 Rails 3 项目部署到 linode VDS 时遇到问题。错误看起来像：
lifecoder@lifecoder-VirtualBox:~/projects/ruby/avtolife$ cap deploy:update
* executing `deploy:update'
** transaction: start
* executing `deploy:update_code'
updating the cached checkout on all servers
executing locally: "git ls-remote git@bitbucket.org:lifecoder/avtolife.git master"
command finished in 2964ms
* executing "if [ -d /srv/avtolife/shared/cached-copy ]; then cd /srv/avtolife/shared/cached-copy && git fetch -q origin && git fetch --tags -q origin && git reset -q --hard aec5c7f44151ca74d8eb384c478d6707719ee680 && git clean -q -d -x -f; else git clone -q git@bitbucket.org:lifecoder/avtolife.git /srv/avtolife/shared/cached-copy && cd /srv/avtolife/shared/cached-copy && git checkout -q -b deploy aec5c7f44151ca74d8eb384c478d6707719ee680; fi"
servers: ["original-parts.net"]
[lifecoder@original-parts.net] executing command
** [original-parts.net :: err] Host key verification failed.
** [original-parts.net :: err] fatal: The remote end hung up unexpectedly
command finished in 1401ms
*** [deploy:update_code] rolling back
* executing "rm -rf /srv/avtolife/releases/20120620203352; true"
servers: ["original-parts.net"]
[lifecoder@original-parts.net] executing command
command finished in 588ms
failed: "rvm_path=$HOME/.rvm/ $HOME/.rvm/bin/rvm-shell '1.9.2' -c 'if [ -d /srv/avtolife/shared/cached-copy ]; then cd /srv/avtolife/shared/cached-copy && git fetch -q origin && git fetch --tags -q origin && git reset -q --hard aec5c7f44151ca74d8eb384c478d6707719ee680 && git clean -q -d -x -f; else git clone -q git@bitbucket.org:lifecoder/avtolife.git /srv/avtolife/shared/cached-copy && cd /srv/avtolife/shared/cached-copy && git checkout -q -b deploy aec5c7f44151ca74d8eb384c478d6707719ee680; fi'" on lifecoder@original-parts.net
我需要一个关于如何跟踪特定错误发生位置的想法。我是 *nix 和 rails 的新手，所以配置的某些部分对我来说看起来很神奇:(