Erro Instalação VirtualBox Ubuntu 18.04 [Resolvido]

[kenshiro]

Pessoal, estava querendo instalar o virtual box no Ubuntu 18.04 e o primeiro tutorial que vi em video acabei executando (estava com pressa)
A sequencia de comandos no vídeo foi:

sudo apt-get update && sudo apt-get dist-upgrade && sudo apt-get autoremove

sudo apt-get -y install gcc make linux-headers-$(uname -r) dkms

wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -

wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -

sudo sh -c 'echo *deb http://download.virtualbox.org/virtualbox/debian $(lsb_release -sc) contrib* >> /etc/apt/sources.list'


Aqui que a coisa ficou ruim.

os próximos comandos seriam:
sudo apt-get update
sudo apt-get install virtualbox-5.2

mas ao executar o sudo apt-get update ocorreu o seguinte erro:
E: Tipo '*deb' não é conhecido na linha 52 na lista de fontes /etc/apt/sources.list

Já percebi que ferrei o arquivo de lista , mas como posso resolver? O estranho é que no video do cara não ocorre erro...por isso achei q estava tranquilo usar este tutorial.

video que segui: https://www.youtube.com/watch?v=RBwbREoaO_Y


Edit:
----------------------------------
percebi buscando que eu confundi o " por * e o comando deveria ser
sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian $(lsb_release -sc) contrib" >> /etc/apt/sources.list.d/virtualbox.list'


pqp , como resolver agora?
Obrigado

--------
Edit 2
cat -n /etc/apt/sources.list e visualizei o conteúdo do arquivo, como abaixo:



     1   #deb cdrom:[Ubuntu 18.04 LTS _Bionic Beaver_ - Release amd64 (20180426)]/ bionic main restricted
     2   
     3   # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
     4   # newer versions of the distribution.
     5   deb http://br.archive.ubuntu.com/ubuntu/ bionic main restricted
     6   # deb-src http://br.archive.ubuntu.com/ubuntu/ bionic main restricted
     7   
     8   ## Major bug fix updates produced after the final release of the
     9   ## distribution.
    10   deb http://br.archive.ubuntu.com/ubuntu/ bionic-updates main restricted
    11   # deb-src http://br.archive.ubuntu.com/ubuntu/ bionic-updates main restricted
    12   
    13   ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
    14   ## team. Also, please note that software in universe WILL NOT receive any
    15   ## review or updates from the Ubuntu security team.
    16   deb http://br.archive.ubuntu.com/ubuntu/ bionic universe
    17   # deb-src http://br.archive.ubuntu.com/ubuntu/ bionic universe
    18   deb http://br.archive.ubuntu.com/ubuntu/ bionic-updates universe
    19   # deb-src http://br.archive.ubuntu.com/ubuntu/ bionic-updates universe
    20   
    21   ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
    22   ## team, and may not be under a free licence. Please satisfy yourself as to
    23   ## your rights to use the software. Also, please note that software in
    24   ## multiverse WILL NOT receive any review or updates from the Ubuntu
    25   ## security team.
    26   deb http://br.archive.ubuntu.com/ubuntu/ bionic multiverse
    27   # deb-src http://br.archive.ubuntu.com/ubuntu/ bionic multiverse
    28   deb http://br.archive.ubuntu.com/ubuntu/ bionic-updates multiverse
    29   # deb-src http://br.archive.ubuntu.com/ubuntu/ bionic-updates multiverse
    30   
    31   ## N.B. software from this repository may not have been tested as
    32   ## extensively as that contained in the main release, although it includes
    33   ## newer versions of some applications which may provide useful features.
    34   ## Also, please note that software in backports WILL NOT receive any review
    35   ## or updates from the Ubuntu security team.
    36   deb http://br.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse
    37   # deb-src http://br.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse
    38   
    39   ## Uncomment the following two lines to add software from Canonical's
    40   ## 'partner' repository.
    41   ## This software is not part of Ubuntu, but is offered by Canonical and the
    42   ## respective vendors as a service to Ubuntu users.
    43   # deb http://archive.canonical.com/ubuntu bionic partner
    44   # deb-src http://archive.canonical.com/ubuntu bionic partner
    45   
    46   deb http://security.ubuntu.com/ubuntu bionic-security main restricted
    47   # deb-src http://security.ubuntu.com/ubuntu bionic-security main restricted
    48   deb http://security.ubuntu.com/ubuntu bionic-security universe
    49   # deb-src http://security.ubuntu.com/ubuntu bionic-security universe
    50   deb http://security.ubuntu.com/ubuntu bionic-security multiverse
    51   # deb-src http://security.ubuntu.com/ubuntu bionic-security multiverse
    52   *deb http://download.virtualbox.org/virtualbox/debian bionic contrib*
    53   deb http://download.virtualbox.org/virtualbox/debian bionic contrib


sudo gedit /etc/apt/sources.list para editar o arquivo e a linha 52 eu troquei o * por "

Será isso o suficiente?

[kenshiro]

Resolvi, procurando mais achei https://askubuntu.com/questions/1029198/skipping-acquire-of-configured-file-contrib-binary-i386-packages-as-repository

e troquei deb http://download.virtualbox.org/virtualbox/debian bionic contrib por deb [arch=amd64] http://download.virtualbox.org/virtualbox/debian bionic contrib no sources.list, depois
sudo apt-get update
sudo apt-get install virtualbox-5.2

consegui instalar.
aprendi com isso que sempre que for mexer no source.list fazer um backup dele antes antes