我正在嘗試將 kolab 安裝到我的 ubuntu 16.04 上，但我找到了指南這裡
但我在思考的步驟中遇到了一個錯誤，apt-get update這沒什麼大不了的，但當我繼續嘗試以下命令來安裝 kolab 時，它也給了一個錯誤
以下是依序排列的兩個：
root@pe-fw:~# apt-get update
Get:1 http://security.ubuntu.com/ubuntu xenial-security InRelease [107 kB]
Hit:2 http://nl.archive.ubuntu.com/ubuntu xenial InRelease
Hit:3 http://nl.archive.ubuntu.com/ubuntu xenial-updates InRelease
Hit:4 http://nl.archive.ubuntu.com/ubuntu xenial-backports InRelease
Ign:5 http://obs.kolabsys.com/repositories/Kolab:/16/Ubuntu_16.04 ./ InRelease
Get:6 http://obs.kolabsys.com/repositories/Kolab:/16/Ubuntu_16.04 ./ Release [993 B]
Get:7 http://obs.kolabsys.com/repositories/Kolab:/16/Ubuntu_16.04 ./ Release.gpg [827 B]
Ign:8 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial InRelease
Ign:9 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial Release
Ign:10 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Sources
Ign:11 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main ppc64el Packages
Ign:12 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main amd64 Packages
Ign:13 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main i386 Packages
Ign:14 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main all Packages
Ign:15 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en_US
Ign:7 http://obs.kolabsys.com/repositories/Kolab:/16/Ubuntu_16.04 ./ Release.gpg
Hit:16 http://obs.kolabsys.com/repositories/Kolab:/16/Ubuntu_16.04 ./ Sources
Hit:17 http://obs.kolabsys.com/repositories/Kolab:/16/Ubuntu_16.04 ./ Packages
Ign:18 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en
Ign:10 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Sources
Ign:11 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main ppc64el Packages
Ign:12 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main amd64 Packages
Ign:13 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main i386 Packages
Ign:14 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main all Packages
Ign:15 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en_US
Ign:18 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en
Ign:10 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Sources
Ign:11 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main ppc64el Packages
Ign:12 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main amd64 Packages
Ign:13 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main i386 Packages
Ign:14 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main all Packages
Ign:15 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en_US
Ign:18 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en
Ign:10 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Sources
Ign:11 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main ppc64el Packages
Ign:12 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main amd64 Packages
Ign:13 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main i386 Packages
Ign:14 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main all Packages
Ign:15 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en_US
Ign:18 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en
Ign:10 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Sources
Ign:11 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main ppc64el Packages
Ign:12 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main amd64 Packages
Ign:13 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main i386 Packages
Ign:14 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main all Packages
Ign:15 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en_US
Ign:18 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en
Err:10 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Sources
404 Not Found
Ign:11 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main ppc64el Packages
Ign:12 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main amd64 Packages
Ign:13 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main i386 Packages
Ign:14 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main all Packages
Ign:15 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en_US
Ign:18 http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial/main Translation-en
Fetched 109 kB in 4s (23.9 kB/s)
Reading package lists... Done
W: The repository 'http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://obs.kolabsys.com/repositories/Kolab:/16/Ubuntu_16.04 ./ Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A01D0CA80038D0DB
W: The repository 'http://obs.kolabsys.com/repositories/Kolab:/16/Ubuntu_16.04 ./ Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://mirror.jmu.edu/pub/mariadb/repo/10.1/ubuntu/dists/xenial/main/source/Sources 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
root@pe-fw:~# apt-get install kolab
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
kolab : Depends: kolab-imap but it is not going to be installed
Depends: kolab-webclient but it is not going to be installed
Depends: kolab-webadmin but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
答案1
您在這裡 apt 有兩個單獨的問題： mariadb 和 kolab 的儲存庫在您的配置中都已損壞。要安裝 MariaDB 10，您可以遵循不同的指南，例如這您只需執行此區塊的操作
sudo apt-get install software-properties-common
sudo apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 0xF1656F24C74CD1D8
sudo add-apt-repository 'deb [arch=amd64,i386,ppc64el] http://ftp.utexas.edu/mariadb/repo/10.1/ubuntu xenial main
你看，它和你指南中的非常相似。
kolab 儲存庫中的錯誤是由更改發布金鑰的開發人員引起的。有關此內容的更多資訊可以在此處找到票。可以使用以下命令修復它：
wget -q -O- https://obs.kolabsys.com/repositories/Kolab:/16/Ubuntu_16.04/Release.key | sudo apt-key add -