安装elasticsearch提示
E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation
解决办法：
apt-get install -y gnupg2
debian系统没有安装gunpg2解决办法
admin
这个人很懒，什么都没留下
安装elasticsearch提示
E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation
解决办法：
apt-get install -y gnupg2
admin
这个人很懒，什么都没留下