Question

我从下面安装了ubuntu 14.04 for beaglebone black的图像：
https://rcn-ee.net/rootfs/2015-02-19/flasher/BBB-eMMC-flasher-ubuntu-14.04.2-console-armhf-2015-02-19-2gb.img.xz

之后我按照ROS网站上给出的步骤将其安装在Ubuntu-arm上，但是当我尝试sudo apt-get update时，它会出现如下错误：

Get:1 http://repos.rcn-ee.net trusty InRelease
Get:2 http://repos.rcn-ee.net trusty-updates InRelease                     
99% [1 InRelease gpgv 199 B] [Connecting to ports.ubuntu.com] [Connecting to diSplitting up /var/lib/apt/lists/partial/repos.rcn-ee.net_ubuntu_dists_trusty_InReIgn http:/repos.rcn-ee.net trusty InRelease                                   
E: GPG error: http:/repos.rcn-ee.net trusty InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?)

Answer 1

查看帖子here

寻找Kartek的解决方案（由RobertCNelson提供）：

sudo apt-get install rcn-ee-archive-keyring

Answer 2

如果你还没有这样做，你应该尝试安装存储库的密钥：

wget http://repos.rcn-ee.net/ubuntu/conf/repos.rcn-ee.net.gpg.key -O - | apt-key add -

在BeagleBone Black的Ubuntu 14.04上安装ROS

2 个答案: