arm-linux-gnueabihf-g++我正在尝试在我的 x64 Ubuntu 上交叉编译一个软件。我尝试执行以下步骤来安装libudev:armhf：
sudo dpkg --add-architecture armhf
将这两行添加到/etc/apt/sources.list
deb [arch=amd64,i386] http://uk.archive.ubuntu.com/ubuntu/ trusty main universe
deb [arch=armel,armhf] http://ports.ubuntu.com/ubuntu-ports trusty main universe`
然后我跑了：
sudo apt-get update
它给了我这样的错误：
W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/trusty/Release Unable to find expected entry 'main/binary-armel/Packages' in Release file (Wrong sources.list entry or malformed file)
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/trusty-security/main/binary-armhf/Packages 404 Not Found [IP: 91.189.88.162 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/trusty-security/universe/binary-armhf/Packages 404 Not Found [IP: 91.189.88.162 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-updates/main/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-updates/restricted/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-updates/universe/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-updates/multiverse/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-backports/main/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-backports/restricted/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-backports/universe/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty-backports/multiverse/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/main/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/restricted/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/universe/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/multiverse/binary-armhf/Packages 404 Not Found [IP: 91.189.88.161 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
如果我尝试sudo apt-get install libudev-dev:armhf我得到
The following packages have unmet dependencies:
libudev-dev:armhf : Depends: libudev1:armhf (= 204-5ubuntu20) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
sudo apt-cache policy libudev1:{amd64,armhf}给出
libudev1:
Installed: 204-5ubuntu20.20
Candidate: 204-5ubuntu20.20
Version table:
*** 204-5ubuntu20.20 0
500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
100 /var/lib/dpkg/status
204-5ubuntu20 0
500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
500 http://uk.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
libudev1:armhf:
Installed: (none)
Candidate: 204-5ubuntu20
Version table:
204-5ubuntu20 0
500 http://ports.ubuntu.com/ubuntu-ports/ trusty/main armhf Packages
如何将armhf添加到我的系统中以进行交叉编译？
答案1
这里有两个问题。
首先，要解决下载时收到的警告，您需要获得资格全部中的非端口条目和中/etc/apt/sources.list的文件。/etc/apt/sources.list.d[arch=amd64,i386]
其次，您无法libudev1使用当前的设置进行安装，因为多架构软件包需要在所有架构上安装相同的版本。您已在 上安装了 204-5ubuntu20.20 amd64，但该版本在您配置的存储库中不可用。为了能够安装 for 的软件包armhf，您还需要添加trusty-updatesfor armhf：
deb [arch=armel,armhf] http://ports.ubuntu.com/ubuntu-ports trusty-updates main universe
答案2
为什么需要 ubuntu-ports？ trusty官方档案里好像有armhf，参见：https://launchpad.net/ubuntu/+source/systemd/204-5ubuntu20.20
我建议删除您添加的行/etc/apt/sources.list并重试