Helo,After upgrading my gcc version, my ubuntu screen became blank(after login), i dont know what i have to do what i did 1)Alt+Ctrl+F1---->after login it show errors like /opt/quartus/linux/libstdc++.so.6:version 'GLIBCXX_3.4.11' not found (required by /usr/i386-linux-gnu/libproxy.so.1) solution sudo mv libstdc++.so.6 libstdc++.so.6.orig
sudo ln-s /usr/lib/libstdc++.so.6.0.9 libstdc++.so.6
and libgcc_s.so.1 also i did the same, then its working 2)Very next day its showing error like
apt-config:/opt/quartus/linux/libstdc++.so.6:verison glibcxx_3.4.11 not found (required by apt-config)
apt-config:/opt/qurartus/linux/libstdc++.so.6:version 3.4.15 not found (required by /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12) again i repeated the solution its showing libstdc++so.6 and libstdc++so.6.orgic are same, failed to create symbolic link, libstdc++.so.6: file exits Kindly any help i dont know what i have to do. Thanks, Alex.
stop multiposting. multiple messages are removedIt looks like you screwed up your Ubuntu installation. I would suggest to reinstall everything (both Ubuntu and Quartus). Messing with /usr/lib is never a good idea.