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An unresolvable problem occurred while calculating the upgrade:

The package 'unity' is marked for removal but it is in the removal blacklist. 

This can be caused by: 

* Upgrading to a pre-release version of Ubuntu 
* Running the current pre-release version of Ubuntu 
* Unofficial software packages not provided by Ubuntu 

If none of this applies, then please report this bug using the 
command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.

What shall i do? Do i need to remove untiy from blacklist but how?

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1 Answer 1

up vote 1 down vote accepted

Option 1:

update manager -d

Option 2:

Step 1: Install Gnome
Step 2: Log in Through Gnome
Step 3: Uninstall unity using Synaptic
Step 4: Try upgrade
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