I'm using Ubuntu 9.10.
When there are packages update available, the Update Manager fails to download them, with the error message
"[ftp://remote/file/blah.deb] not found".
But, if I open a terminal window (Konsole), and execute
sudo apt-get dist-upgrade, the exact same package list gets downloaded and update successfully.
Any clues about what could cause the Update Manager to fail (every time), but apt-get would succeed?
I didn't had this problem before upgrading (from Ubuntu 9.04).