2. After successful installation of above extension package, removed the virtualbox-ext-pack package with "sudo apt remove virtualbox-ext-pack" command. See the output here:-
$ sudo apt remove virtualbox-ext-pack
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
virtualbox-ext-pack
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
After this operation, 128 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 541278 files and directories currently installed.)
Removing virtualbox-ext-pack (5.2.10-3) ...
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Successfully uninstalled "Oracle VM VirtualBox Extension Pack".
Successfully performed extension pack cleanup
I have solved the issue manually. No help from update and upgrade. This is how solved it:-
1. Download the official oracle ext package from here https:/ /download. virtualbox. org/virtualbox/ 5.2.10/ Oracle_ VM_VirtualBox_ Extension_ Pack-5. 2.10.vbox- extpack and choose to open with Virtual box.
2. After successful installation of above extension package, removed the virtualbox-ext-pack package with "sudo apt remove virtualbox- ext-pack" command. See the output here:- ext-pack ...20%. ..30%.. .40%... 50%...60% ...70%. ..80%.. .90%... 100%
$ sudo apt remove virtualbox-ext-pack
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
virtualbox-
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
After this operation, 128 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 541278 files and directories currently installed.)
Removing virtualbox-ext-pack (5.2.10-3) ...
0%...10%
Successfully uninstalled "Oracle VM VirtualBox Extension Pack".
Successfully performed extension pack cleanup
Relieved of worries now. :-)