我收到了一条通知，说我需要升级我们的安装，所以我去了管理后台，看到了这个：
点击升级链接会触发一个检查，但两者都返回“已是最新”。所以我尝试了 ./launcher rebuild app，结果如下：
FAILED
--------------------
Pups::ExecError: cd /var/www/discourse & sudo -H -E -u discourse bash -c '
set -o errexit
if [ $(git rev-parse --is-shallow-repository) == "true" ]; then
git remote set-branches --add origin main
git remote set-branches origin tests-passed
git fetch --depth 1 origin tests-passed
else
git fetch --tags --prune-tags --prune --force origin
fi
' failed with return #<Process::Status: pid 130 exit 128>
Location of failure: /usr/local/lib/ruby/gems/3.2.0/gems/pups-1.2.1/lib/pups/exec_command.rb:132:in `spawn'
exec failed with the params {"cd"=>"$home", "hook"=>"code", "cmd"=>["sudo -H -E -u discourse git reset --hard", "sudo -H -E -u discourse git clean -f", "sudo -H -E -u discourse bash -c '\n set -o errexit\n if [ $(git rev-parse --is-shallow-repository) == \"true\" ]; then\n git remote set-branches --add origin main\n git remote set-branches origin $version\n git fetch --depth 1 origin $version\n else\n git fetch --tags --prune-tags --prune --force origin\n fi\n'", "sudo -H -E -u discourse bash -c '\n set -o errexit\n if [[ $(git symbolic-ref --short HEAD) == $version ]] ; then\n git pull\n else\n git -c advice.detachedHead=false checkout $version\n fi\n'", "sudo -H -E -u discourse git config user.discourse-version $version", "mkdir -p tmp", "chown discourse:www-data tmp", "mkdir -p tmp/pids", "mkdir -p tmp/sockets", "touch tmp/.gitkeep", "mkdir -p /shared/log/rails", "bash -c \"touch -a /shared/log/rails/{production,production_errors,unicorn.stdout,unicorn.stderr,sidekiq}.log\"", "bash -c \"ln -s /shared/log/rails/{production,production_errors,unicorn.stdout,unicorn.stderr,sidekiq}.log $home/log\"", "bash -c \"mkdir -p /shared/{uploads,backups}\"", "bash -c \"ln -s /shared/{uploads,backups} $home/public\"", "bash -c \"mkdir -p /shared/tmp/{backups,restores}\"", "bash -c \"ln -s /shared/tmp/{backups,restores} $home/tmp\"", "chown -R discourse:www-data /shared/log/rails /shared/uploads /shared/backups /shared/tmp\"", "[ ! -d public/plugins ] || find public/plugins/ -maxdepth 1 -xtype l -delete"]}
bootstrap failed with exit code 128
** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one.
./discourse-doctor may help diagnose the problem.
fd6a747d640a06c375439c5c134aa46ff11ceb8f677d6d16247cb57c9772f731
然后我运行了 ./discourse-doctor，它让网站恢复了（尽管奇怪的是测试邮件超时了，也许那是另一个问题）。所以我又尝试了 ./launcher rebuild app，它又因为同样的问题启动失败了。
有人有什么线索吗？我使用的是 Ubuntu 22.04 上的 Docker。
（但说真的，对于不熟悉这些日志的人来说，很难弄清楚什么重要，什么不重要，而且你会发现有数百个主题是有人错误地猜测了错误是什么。