curl -sS https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.deb.sh | sudo bashcurl -sS https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.rpm.sh | sudo bashsudo apt-get install gitlab-ce(Debian/Ubuntu)sudo yum install gitlab-ce(CentOS/RHEL)sudo ./install.sh),完成后重启GitLab服务:sudo gitlab-ctl restart。/etc/gitlab/gitlab.rb)设置参数,修改后执行sudo gitlab-ctl reconfigure生效。sudo gitlab-ctl check-update。sudo gitlab-ctl stop。sudo apt purge gitlab-ce),或手动删除文件和配置。注意:部分插件(如CI/CD相关)需通过.gitlab-ci.yml配置文件或GitLab Runner配合使用。操作前建议备份数据,复杂插件建议参考官方文档。