O.K., thank you Michael. Please find the file attached. Some files did not download because of a weak wifi connection.
The original sources.list was modified downloading from www.sourceslist.eu . But I tried to restore the original sources.list as I used it before the download. ** Attachment added: "meta-release" http://launchpadlibrarian.net/26053794/meta-release -- cannot update from ubuntu-studio 8.10 to 9.04 https://bugs.launchpad.net/bugs/366715 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs