> How do I roll back to gcc-6.2.0-6?
If you haven't cleaned package cache recently you might try this: cd /var/cache/apt/archives ls -al *6.2.0-6* and if gcc-6.2.0-6 seems to be present: dpkg -i *6.2.0-6*
> How do I roll back to gcc-6.2.0-6?
If you haven't cleaned package cache recently you might try this: cd /var/cache/apt/archives ls -al *6.2.0-6* and if gcc-6.2.0-6 seems to be present: dpkg -i *6.2.0-6*