kolab dá erro durante o guia de instalação

Question

Estou tentando instalar o kolab no meu Ubuntu 16.04, mas com o guia encontrado aqui
mas eu recebo um erro na etapa de fazer o apt-get update pensando que não é nada importante, mas como eu fui em tentar o seguinte comando para instalar o kolab que também dá um erro

aqui estão os dois em ordem:

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.

    

Answer 1

Você tem dois problemas com o apt aqui: O repositório para o mariadb e o kolab estão quebrados na sua configuração. Para instalar o MariaDB 10, você poderia seguir um guia diferente como este onde você teria que faça apenas este bloco

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

Você vê, é muito semelhante ao do seu guia.

O erro do repositório kolab é causado pelos desenvolvedores que alteraram sua chave de liberação. Mais sobre isso pode ser encontrado neste tíquete . Pode ser corrigido com este comando:

wget -q -O- https://obs.kolabsys.com/repositories/Kolab:/16/Ubuntu_16.04/Release.key | sudo apt-key add -