新买的 thinkpad-x240s, 安装的是13.10 但无论选择哪个源进行update，都是如下错误，导致什么软件都无法安装怎么办 ？
$ sudo apt-get update 获取：1 http://mirrors.oss.org.cn saucy InRelease 98% [1 InRelease gpgv 270 B] [正在连接 mirrors.oss.org.cn (119.254.229.28)]Splitting up /var/lib/apt/lists/partial/mirrors.oss.org.cn_ubuntu_dists_sau忽略 http://mirrors.oss.org.cn saucy InRelease E: GPG 错误：http://mirrors.oss.org.cn saucy InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?) -- -- wzc0066 from ucrobotics.com -------------- 下一部分 -------------- 一个HTML附件被移除... URL: <https://lists.ubuntu.com/archives/ubuntu-zh/attachments/20140417/a7831bad/attachment.html> -- ubuntu-zh mailing list ubuntu-zh@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-zh
