Virtualbox não inicia no ubuntu 18.04 - Qt lib problem

Question

Depois de fazer uma nova instalação do Ubuntu 18.04 (usando o gnome), eu instalei o virtualbox através de sudo apt-get install virtualbox

No entanto, quando eu executo a partir da linha de comando eu recebo:

VirtualBox: supR3HardenedMainGetTrustedMain: dlopen("/usr/lib/virtualbox/VirtualBox.so",) failed: libQt5Core.so.5: cannot open shared object file: No such file or directory

Eu tentei fornecer mais informações, como já sugerido aqui: O Virtualbox não está sendo iniciado

Quando eu verifiquei as bibliotecas do Qt, posso ver que elas estão instaladas corretamente, pois elas têm status ii.

dpkg -l | grep libqt5

ii  libqt5concurrent5:amd64                    5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 concurrent module
ii  libqt5core5a:amd64                         5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 core module
ii  libqt5dbus5:amd64                          5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 D-Bus module
ii  libqt5gui5:amd64                           5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 GUI module
ii  libqt5network5:amd64                       5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 network module
ii  libqt5opengl5:amd64                        5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 OpenGL module
ii  libqt5opengl5-dev:amd64                    5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 OpenGL library development files
ii  libqt5printsupport5:amd64                  5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 print support module
ii  libqt5sql5:amd64                           5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 SQL module
ii  libqt5sql5-sqlite:amd64                    5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 SQLite 3 database driver
ii  libqt5svg5:amd64                           5.9.5-0ubuntu1                      amd64        Qt 5 SVG module
ii  libqt5test5:amd64                          5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 test module
ii  libqt5widgets5:amd64                       5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 widgets module
ii  libqt5x11extras5:amd64                     5.9.5-0ubuntu1                      amd64        Qt 5 X11 extras
ii  libqt5x11extras5-dev:amd64                 5.9.5-0ubuntu1                      amd64        Qt 5 X11 extras development files
ii  libqt5xml5:amd64                           5.9.5+dfsg-0ubuntu1                 amd64        Qt 5 XML module

No entanto, as seguintes bibliotecas não são encontradas:

ldd /usr/lib/virtualbox/VirtualBox.so | grep not

libQt5Core.so.5 => not found
libQt5Gui.so.5 => not found
libQt5Widgets.so.5 => not found
libQt5Gui.so.5 => not found
libQt5Core.so.5 => not found
libQt5Widgets.so.5 => not found
libQt5Gui.so.5 => not found
libQt5Core.so.5 => not found
libQt5Widgets.so.5 => not found
libQt5Gui.so.5 => not found
libQt5Core.so.5 => not found

O mesmo aqui:

ldd /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 | grep not
ldd: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: No such file or directory

Além disso:

dpkg -S /usr/bin/virtualbox
virtualbox-qt: /usr/bin/virtualbox

Eu então fiz uma pesquisa adicional sobre o Qt e cheguei a este tópico, mas a solução também não funciona:

Você também pode ver para onde os arquivos da biblioteca estão apontando:

ls -alht /usr/lib/x86_64-linux-gnu/libQt5*
lrwxrwxrwx 1 root root   24 Apr 14 21:31 /usr/lib/x86_64-linux-gnu/libQt5X11Extras.so.5 -> libQt5X11Extras.so.5.9.5
lrwxrwxrwx 1 root root   24 Apr 14 21:31 /usr/lib/x86_64-linux-gnu/libQt5X11Extras.so.5.9 -> libQt5X11Extras.so.5.9.5
-rw-r--r-- 1 root root  15K Apr 14 21:31 /usr/lib/x86_64-linux-gnu/libQt5X11Extras.so.5.9.5
lrwxrwxrwx 1 root root   18 Apr 14 21:23 /usr/lib/x86_64-linux-gnu/libQt5Svg.so.5 -> libQt5Svg.so.5.9.5
lrwxrwxrwx 1 root root   18 Apr 14 21:23 /usr/lib/x86_64-linux-gnu/libQt5Svg.so.5.9 -> libQt5Svg.so.5.9.5
-rw-r--r-- 1 root root 342K Apr 14 21:23 /usr/lib/x86_64-linux-gnu/libQt5Svg.so.5.9.5
lrwxrwxrwx 1 root root   25 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Concurrent.so.5 -> libQt5Concurrent.so.5.9.5
lrwxrwxrwx 1 root root   25 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Concurrent.so.5.9 -> libQt5Concurrent.so.5.9.5
-rw-r--r-- 1 root root  27K Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Concurrent.so.5.9.5
lrwxrwxrwx 1 root root   37 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5EglFSDeviceIntegration.so.5 -> libQt5EglFSDeviceIntegration.so.5.9.5
lrwxrwxrwx 1 root root   37 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5EglFSDeviceIntegration.so.5.9 -> libQt5EglFSDeviceIntegration.so.5.9.5
-rw-r--r-- 1 root root 714K Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5EglFSDeviceIntegration.so.5.9.5
lrwxrwxrwx 1 root root   30 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5EglFsKmsSupport.so.5 -> libQt5EglFsKmsSupport.so.5.9.5
lrwxrwxrwx 1 root root   30 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5EglFsKmsSupport.so.5.9 -> libQt5EglFsKmsSupport.so.5.9.5
-rw-r--r-- 1 root root  96K Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5EglFsKmsSupport.so.5.9.5
lrwxrwxrwx 1 root root   18 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 -> libQt5Gui.so.5.9.5
lrwxrwxrwx 1 root root   18 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.9 -> libQt5Gui.so.5.9.5
-rw-r--r-- 1 root root 5.4M Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.9.5
lrwxrwxrwx 1 root root   21 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5OpenGL.so.5 -> libQt5OpenGL.so.5.9.5
lrwxrwxrwx 1 root root   21 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5OpenGL.so.5.9 -> libQt5OpenGL.so.5.9.5
-rw-r--r-- 1 root root 346K Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5OpenGL.so.5.9.5
lrwxrwxrwx 1 root root   27 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5PrintSupport.so.5 -> libQt5PrintSupport.so.5.9.5
lrwxrwxrwx 1 root root   27 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5PrintSupport.so.5.9 -> libQt5PrintSupport.so.5.9.5
-rw-r--r-- 1 root root 443K Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5PrintSupport.so.5.9.5
lrwxrwxrwx 1 root root   18 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Sql.so.5 -> libQt5Sql.so.5.9.5
lrwxrwxrwx 1 root root   18 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Sql.so.5.9 -> libQt5Sql.so.5.9.5
-rw-r--r-- 1 root root 292K Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Sql.so.5.9.5
lrwxrwxrwx 1 root root   19 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Test.so.5 -> libQt5Test.so.5.9.5
lrwxrwxrwx 1 root root   19 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Test.so.5.9 -> libQt5Test.so.5.9.5
-rw-r--r-- 1 root root 217K Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Test.so.5.9.5
lrwxrwxrwx 1 root root   22 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 -> libQt5Widgets.so.5.9.5
lrwxrwxrwx 1 root root   22 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.9 -> libQt5Widgets.so.5.9.5
-rw-r--r-- 1 root root 6.3M Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.9.5
lrwxrwxrwx 1 root root   21 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 -> libQt5XcbQpa.so.5.9.5
lrwxrwxrwx 1 root root   21 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5.9 -> libQt5XcbQpa.so.5.9.5
-rw-r--r-- 1 root root 1.1M Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5.9.5
lrwxrwxrwx 1 root root   18 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Xml.so.5 -> libQt5Xml.so.5.9.5
lrwxrwxrwx 1 root root   18 Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Xml.so.5.9 -> libQt5Xml.so.5.9.5
-rw-r--r-- 1 root root 240K Apr 13 00:24 /usr/lib/x86_64-linux-gnu/libQt5Xml.so.5.9.5

Alguma ajuda?

    

Answer 1

Obrigado cmak.fr por me indicar a solução. Eu tive que reinstalar os pacotes libqt5core5a e libdouble-conversion1 . Observe que isso também removeu virtualbox-qt , que precisou ser reinstalado:

sudo apt-get remove libqt5core5a
sudo apt-get install libqt5core5a

sudo apt-get remove libdouble-conversion1
sudo apt-get install libdouble-conversion1

sudo apt-get install virtualbox-qt

No final, pode-se verificar com ldd /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 para ver se há outras dependências ausentes. Se houver, tente encontrar os nomes dos pacotes correspondentes e reinstale-os.

    

Answer 2

Apenas para adicionar informações, estas são as etapas que segui:

# Attempt to run virtualbox from terminal 
$> virtualbox

Qt FATAL: This application failed to start because it could not find or load the Qt platform plugin "xcb" in "".

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.

Reinstalling the application may fix this problem.
Aborted (core dumped)

Encontrando o caminho para o executável

$> which virtualbox

/usr/bin/virtualbox

Encontre as bibliotecas compartilhadas de um programa

$> ldd /usr/bin/virtualbox
not a dynamic executable

Use strace

$> strace  /usr/bin/virtualbox
This application failed to start because it could not find or load the Qt platform plugin "xcb"
in "**/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms**".

Available platform plugins are:....{ many plugins here }

A próxima coisa que fiz (como sugerido em outro site) foi:

#>vim /etc/ld.so.conf.d/libc.conf
# libc default configuration
#/usr/local/lib         # comment it out this line

Emita o seguinte para atualizar o cache da biblioteca.

#> sudo ldconfig

Em seguida, tente executar o VirtualBox novamente a partir do terminal

$> virtualbox
{{Finally Works!!!}

Espero que isso ajude a consertar seu Virtualbox. Não tenho certeza se eu tenho que descomentar a linha / usr / local / lib de cima.

Sim, descomentei a linha

/ usr / local / lib # comente esta linha

e tudo continua funcionando bem. Eu fiz uma reinicialização para fazer a verificação limpa tudo está bem.

Felicidades