My question is a duplicate of VirtualBox not starting after kernel upgrade. My system configuration is as shown below.
reclusiarch@reclusiarch-Inspiron-7520:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.5 LTS"
reclusiarch@reclusiarch-Inspiron-7520:~$ uname -a
Linux reclusiarch-Inspiron-7520 4.4.0-116-generic #140~14.04.1-Ubuntu SMP Fri Feb 16 09:25:20 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
I had already purged the repository ( https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/test) before discovering that I could not install gcc-5 without the said respository for Ubuntu 14.04. My question are as follows: Is there a way to revert my virtualbox installation back to a working installation and if so, how I proceed? Thanks for not closing this question.