Actually, the story is not over: it is not definitive to have only one section to workaround this issue. All the packages which are missing from "Packages" have a common point: all of them have at least a different value in one of the fields in their "control" file than their previous release.
For example, one of gns3-gui_1.4.5 dependencies has changed as compared to gns3-gui_1.4.4: gns3-net-converter instead of gns3-converter; here are both control files: Package: gns3-gui Priority: extra Section: net Installed-Size: 23396 Maintainer: Jean-Christophe Manciot <manciot.jeanchristo...@gmail.com> Architecture: amd64 Version: 1.4.4-11 Depends: gns3-converter,python3,python3-setuptools,python3-pyqt5,python3-pyqt5.qtsvg,python3-pyqt5.qtwebkit,python3-libcloud,python3-requests,python3-paramiko,python3-configobj Provides: gns3-gui Description: GNS3 GUI controls the server using a HTTP REST API. Package: gns3-gui Priority: extra Section: net Installed-Size: 23344 Maintainer: Jean-Christophe Manciot <manciot.jeanchristo...@gmail.com> Architecture: amd64 Version: 1.4.5-11 Depends: gns3-net-converter,python3,python3-setuptools,python3-pyqt5,python3-pyqt5.qtsvg,python3-pyqt5.qtwebkit,python3-libcloud,python3-requests,python3-paramiko,python3-configobj Provides: gns3-gui Description: GNS3 GUI controls the server using a HTTP REST API. In that case, the last package - gns3-gui_1.4.5 - is missing from 'Packages". Another example: I have changed the section and maintainer values between virt-viewer_3.0 and virt-viewer_3.1: Package: virt-viewer Priority: extra Section: checkinstall Installed-Size: 6488 Maintainer: manciot.jeanchristo...@gmail.com Architecture: amd64 Version: 3.0-11 Depends: openssh-client,desktop-file-utils,spice-client-gtk,libcelt051 Provides: virt-viewer Description: The virt-viewer application is a lightweight interface for interacting with the graphical display of virtualized guest OS. It can display VNC or SPICE, and uses libvirt to lookup the graphical connection details. Package: virt-viewer Priority: extra Section: utils Installed-Size: 6620 Maintainer: Jean-Christophe Manciot <manciot.jeanchristo...@gmail.com> Architecture: amd64 Version: 3.1-11 Depends: openssh-client,desktop-file-utils,spice-client-gtk,libcelt051 Provides: virt-viewer Description: The virt-viewer application is a lightweight interface for interacting with the graphical display of virtualized guest OS. It can display VNC or SPICE, and uses libvirt to lookup the graphical connection details. Again, the last version - virt-viewer_3.1 is missing from "Packages". Obviously, not all fields are affected by this issue; apt-ftparchive accepts that some of them may change (Installed-Size, Version,...), but others cannot when they could. I will change the title of this thread to reflect that. ** Summary changed: - [apt-utils] Some packages are missing in Packages built by apt-ftparchive + [apt-utils] Changing "Section", "Maintainer" or "Depends" (and probably some others) fields in a control file makes apt-ftparchive miss the new package in "Packages" file. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1550726 Title: [apt-utils] Changing "Section", "Maintainer" or "Depends" (and probably some others) fields in a control file makes apt-ftparchive miss the new package in "Packages" file. Status in apt package in Ubuntu: New Bug description: On Linux 4.2.0-30-generic #36-Ubuntu SMP Fri Feb 26 00:58:07 UTC 2016 x86_64 GNU/Linux with apt-utils 1.0.10.2 corresponding to previously named issue "apt-ftparchive reports wrong file size and checksums in Packages" Cf. post #2 which matches the current bug description with apt-utils 1.2.4. Generating Packages with (apt-ftparchive.conf is attached below.): apt-ftparchive generate --contents=off ./apt-ftparchive.conf Generated Packages contains: ################################################################# Package: nemo ... Installed-Size: 9508 ... Version: 2.8.6-11 ... Filename: dists/wily/system-tools/binary-amd64/nemo_2.8.6-11_amd64.deb Size: 1392338 MD5sum: de162d539df28402f54761f671259278 SHA1: fb5ebacfc032071d3715dce18640deb649732048 SHA256: d0c52eb9bd8224e3d876dc6426ccc1ed49f975038152c53faacd5e71e0a19a33 SHA512: e1cc7eb9865c9f3f5a8d4a8f4406862617e285a080bf6c894b3295088a4406a149b53e27ae379c43335a4231e60966f7068412e93173a6e9bfaa8c48b43ac616 ################################################################# However, on disk, we have very different file size & checksums: ll nemo* -rw-r--r-- 1 actionmystique actionmystique 1082324 Feb 27 15:01 nemo_2.8.6-11_amd64.deb md5sum nemo_2.8.6-11_amd64.deb 68d5c945d9ccd9d3d2807ba46e33cc42 nemo_2.8.6-11_amd64.deb If we generate Packages differently with: apt-ftparchive packages . > Packages Generated Packages contains this time correct file size & checksums: ################################################################# Package: nemo ... Installed-Size: 5284 ... Version: 2.8.6-11 ... Filename: ./nemo_2.8.6-11_amd64.deb Size: 1082324 MD5sum: 68d5c945d9ccd9d3d2807ba46e33cc42 SHA1: eecee7a24c20843c15997adcddcd3dad38c9c831 SHA256: 83451ab9c9975dc7e18d43f2a7d223000c4ee84c9383e82a6461bffef641760a SHA512: ce715c1d480607e347511562f6d29d10eddb900d2ced3a82d1db08e2bc1a9c24974d3c59cc1e1e83b19ba5dac90d0cc80c7288606e6e3ac06d3551df3550ad09 ################################################################# What is very strange is that all other packages in the same folder are correctly described by Packages when using the first method for generating Packages. I have the same issue with another package in another folder. I have also uploaded the deb. Any suggestion? N.B: I can upload the second package if necessary. 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