Нужна помощь с ошибками установки VirtualBox на Ubuntu 20.04, пожалуйста,

Я просто создаю новый рабочий стол Ubuntu, чтобы заменить мою старую машину, и я не был успешной установкой VirtualBox. Это сообщение, которое я получу, когда я пытаюсь установить:

sudo gdebi virtualbox-6.1_6.1.18-142142_Ubuntu_eoan_amd64.deb
[sudo] password for myusername: 
Reading package lists... Done
Building dependency tree        
Reading state information... Done
Reading state information... Done

Oracle VM VirtualBox
 VirtualBox is a powerful PC virtualization solution allowing you to run a
 wide range of PC operating systems on your Linux system. This includes
 Windows, Linux, FreeBSD, DOS, OpenBSD and others. VirtualBox comes with a broad
 feature set and excellent performance, making it the premier virtualization
 software solution on the market.
Do you want to install the software package? [y/N]:y
/usr/bin/gdebi:113: FutureWarning: Possible nested set at position 1
  c = findall("[[(](\S+)/\S+[])]", msg)[0].lower()
(Reading database ... 280449 files and directories currently installed.)
Preparing to unpack virtualbox-6.1_6.1.18-142142_Ubuntu_eoan_amd64.deb ...
Unpacking virtualbox-6.1 (6.1.18-142142~Ubuntu~eoan) over (6.1.18-142142~Ubuntu~eoan) ...
Setting up virtualbox-6.1 (6.1.18-142142~Ubuntu~eoan) ...
addgroup: The group `vboxusers' already exists as a system group. Exiting.
vboxdrv.sh: failed: Look at /var/log/vbox-setup.log to find out what went wrong.

There were problems setting up VirtualBox.  To re-start the set-up process, run
  /sbin/vboxconfig
as root.  If your system is using EFI Secure Boot you may need to sign the
kernel modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) before you can load
them. Please see your Linux system's documentation for more information.
Processing triggers for systemd (245.4-4ubuntu3.4) ...
Processing triggers for gnome-menus (3.36.0-1ubuntu1) ...
Processing triggers for desktop-file-utils (0.24-1ubuntu3) ...
Processing triggers for mime-support (3.64ubuntu1) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...
Processing triggers for shared-mime-info (1.15-1) .

i, затем выполнил sudo / sbin / vboxconfig и получает то же сообщение, показанное выше.

`sudo modprobe vboxdrv ModProbe: Fatal: Модуль vboxdrv не найден в каталоге /lib/modules/5.11.6-051106-generic't

This - это выдержка из файла vbox-setup.log:

Building the main VirtualBox module.
Building the net filter module.
Error building the module:
make V=1 CONFIG_MODULE_SIG= CONFIG_MODULE_SIG_ALL= -C /lib/modules/5.11.6-051106-generic/build M=/tmp/vbox.0 SRCROOT=/tmp/vbox.0 -j12 modules
make[1]: warning: -j12 forced in submake: resetting jobserver mode.
make -f ./scripts/Makefile.build obj=/tmp/vbox.0 \
single-build= \
need-builtin=1 need-modorder=1
  gcc -Wp,-MMD,/tmp/vbox.0/linux/.VBoxNetFlt-linux.o.d  -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/9/include -I./arch/x86/include -I./arch/x86/include/generated  -I./include -I./arch/x86/include/uapi -I./arch/x86/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/kconfig.h -include ./include/linux/compiler_types.h -D__KERNEL__ -fmacro-prefix-map=./= -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE -Werror=implicit-function-declaration -Werror=implicit-int -Werror=return-type -Wno-format-security -std=gnu89 -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -fcf-protection=none -m64 -falign-jumps=1 -falign-loops=1 -mno-80387 -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mskip-rax-setup -mtune=generic -mno-red-zone -mcmodel=kernel -DCONFIG_X86_X32_ABI -Wno-sign-compare -fno-asynchronous-unwind-tables -mindirect-branch=thunk-extern -mindirect-branch-register -fno-jump-tables -fno-delete-null-pointer-checks -Wno-frame-address -Wno-format-truncation -Wno-format-overflow -Wno-address-of-packed-member -O2 --param=allow-store-data-races=0 -Wframe-larger-than=1024 -fstack-protector-strong -Wno-unused-but-set-variable -Wimplicit-fallthrough -Wno-unused-const-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -gdwarf-4 -pg -mrecord-mcount -mfentry -DCC_USING_FENTRY -Wdeclaration-after-statement -Wvla -Wno-pointer-sign -Wno-stringop-truncation -Wno-array-bounds -Wno-stringop-overflow -Wno-restrict -Wno-maybe-uninitialized -fno-strict-overflow -fno-stack-check -fconserve-stack -Werror=date-time -Werror=incompatible-pointer-types -Werror=designated-init -Wno-packed-not-aligned -include /tmp/vbox.0/include/VBox/SUPDrvMangling.h -fno-pie -Wno-declaration-after-statement -I./include -I/tmp/vbox.0/ -I/tmp/vbox.0/include -I/tmp/vbox.0/r0drv/linux -D__KERNEL__ -DMODULE -DRT_WITHOUT_PRAGMA_ONCE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX -DRT_WITH_VBOX -DVBOX_WITH_HARDENING -DVBOX_WITH_64_BITS_GUESTS -DRT_ARCH_AMD64  -DMODULE  -DKBUILD_BASENAME='"VBoxNetFlt_linux"' -DKBUILD_MODNAME='"vboxnetflt"' -c -o /tmp/vbox.0/linux/VBoxNetFlt-linux.o /tmp/vbox.0/linux/VBoxNetFlt-linux.c
.
. **items left out**
.
/tmp/vbox.0/linux/VBoxNetFlt-linux.c: In function ‘vboxNetFltNeedsLinkState’:
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1761:47: error: dereferencing pointer to incomplete type ‘const struct ethtool_ops’
 1761 |     if (pDev->ethtool_ops && pDev->ethtool_ops->get_drvinfo)
      |                                               ^~
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1763:32: error: storage size of ‘Info’ isn’t known
 1763 |         struct ethtool_drvinfo Info;
      |                                ^~~~
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1766:20: error: ‘ETHTOOL_GDRVINFO’ undeclared (first use in this function)
 1766 |         Info.cmd = ETHTOOL_GDRVINFO;
      |                    ^~~~~~~~~~~~~~~~
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1766:20: note: each undeclared identifier is reported only once for each function it appears in
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1763:32: warning: unused variable ‘Info’ [-Wunused-variable]
 1763 |         struct ethtool_drvinfo Info;
      |                                ^~~~
make[2]: *** [scripts/Makefile.build:279: /tmp/vbox.0/linux/VBoxNetFlt-linux.o] Error 1
make[1]: *** [Makefile:1806: /tmp/vbox.0] Error 2
make: *** [/tmp/vbox.0/Makefile-footer.gmk:117: vboxnetflt] Error 2

Я затем следовал в предложении в https://superuser.com/questions/1438279/how-to-sign-a-kernel-module-ubuntu-18-04 И это не помогало с установкой.

Моя система информации:

Kernel      : Linux 5.11.6-051106-generic (x86_64)
Version     : #202103111435 SMP Thu Mar 11 14:42:39 UTC 2021
C Library       : GNU C Library / (Ubuntu GLIBC 2.31-0ubuntu9.2) 2.31
Distribution        : Ubuntu 20.04.2 LTS

-Computer-
Processor       : AMD Ryzen 5 5600X 6-Core Processor
Memory      : 32882MB (4133MB used)
Machine Type        : Desktop
Operating System        : Ubuntu 20.04.2 LTS
User Name       : root (root)
Date/Time       : Thu 11 Mar 2021 05:49:58 PM CST

Любая помощь будет очень оценена. Спасибо.