Public bug reported: Before `apt modernize-sources` reading from my PPA works. Afterwards the PPA is not longer trusted:
$ sudo apt-get update $ sudo apt-get update && sudo apt-get dist-upgrade [sudo: authenticate] Password: Get:1 https://ppa.launchpadcontent.net/xypron/stubble/ubuntu resolute InRelease [20.0 kB] Get:2 https://ppa.launchpadcontent.net/xypron/stubble/ubuntu resolute/main Sources [2592 B] Hit:3 http://ports.ubuntu.com/ubuntu-ports resolute InRelease ... Fetched 11.8 MB in 15s (772 kB/s) Reading package lists... Done N: Some sources can be modernized. Run 'apt modernize-sources' to do so. E: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 4062 (unattended-upgr) N: Be aware that removing the lock file is not a solution and may break your system. E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it? /etc/apt/sources.list.d/extra-ppas.list has this content: deb https://ppa.launchpadcontent.net/xypron/stubble/ubuntu resolute main deb-src https://ppa.launchpadcontent.net/xypron/stubble/ubuntu resolute main $ sudo apt modernize-sources Modernizing /etc/apt/sources.list.d/extra-ppas.list... - Writing /etc/apt/sources.list.d/extra-ppas.sources Warning: Could not determine Signed-By for URIs: https://ppa.launchpadcontent.net/xypron/stubble/ubuntu/, Suites: resolute $ sudo apt-get update Hit:1 http://ports.ubuntu.com/ubuntu-ports resolute InRelease Hit:2 http://ports.ubuntu.com/ubuntu-ports resolute-updates InRelease Hit:3 http://ports.ubuntu.com/ubuntu-ports resolute-backports InRelease Hit:4 https://ppa.launchpadcontent.net/xypron/stubble/ubuntu resolute InRelease Hit:5 http://ports.ubuntu.com/ubuntu-ports resolute-security InRelease Reading package lists... Done N: Missing Signed-By in the sources.list(5) entry for 'https://ppa.launchpadcontent.net/xypron/stubble/ubuntu' ** Affects: apt (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2161066 Title: apt modernize source does not add ppa signatures To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/2161066/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
