** No longer affects: hwe-next

** No longer affects: mesa (Ubuntu)

** Summary changed:

- Installing libgbm1 will make other packages removed
+ installation stopped by an exception from mark_install() in Cache class of 
python3-apt

** Description changed:

- 1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> 
About Ubuntu
- Ubuntu 20.04/20.04.1
+ Exception in the installation
  
- 2) The version of the package you are using, via 'apt-cache policy pkgname' 
or by checking in Software Center
- libgbm1/20.0.4-2ubuntu1 libgbm1/20.0.8-0ubuntu1~20.04.1
+ Aug 12 19:26:59 ubuntu /plugininstall.py: Exception during installation:
+ Aug 12 19:26:59 ubuntu /plugininstall.py: Traceback (most recent call last):
+ Aug 12 19:26:59 ubuntu /plugininstall.py: File 
"/usr/share/ubiquity/plugininstall.py", line 235, in run
+ Aug 12 19:26:59 ubuntu /plugininstall.py: self.install_extras()
+ Aug 12 19:26:59 ubuntu /plugininstall.py: File 
"/usr/share/ubiquity/plugininstall.py", line 1212, in install_extras
+ Aug 12 19:26:59 ubuntu /plugininstall.py: 
self.do_install(filtered_extra_packages)
+ Aug 12 19:26:59 ubuntu /plugininstall.py: File 
"/usr/lib/ubiquity/ubiquity/install_misc.py", line 941, in do_install
+ Aug 12 19:26:59 ubuntu /plugininstall.py: mark_install(cache, pkg)
+ Aug 12 19:26:59 ubuntu /plugininstall.py: File 
"/usr/lib/ubiquity/ubiquity/install_misc.py", line 553, in mark_install
+ Aug 12 19:26:59 ubuntu /plugininstall.py: raise InstallStepError(
+ Aug 12 19:26:59 ubuntu /plugininstall.py: 
ubiquity.install_misc.InstallStepError: Unable to install 'libgbm1' due to 
conflicts.
  
- 3) What you expected to happen
- Not so many packages will be removed when executing `apt-get --yes install 
libgbm1`.
+ This happen in oem project because we have lots pkg to upgrade during
+ installation because the design of factory process need it.
  
- 4) What happened instead
- Executing `apt-get --yes install libgbm1` will make many other packages to be 
removed.
+ As package list have certain dependency, and the the order that we get
+ the pkg from the python set object is not good for underlying apt
+ engine, then exception will raise.

** Changed in: oem-priority
       Status: Confirmed => In Progress

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Touch seeded packages, which is subscribed to mesa in Ubuntu.
https://bugs.launchpad.net/bugs/1908023

Title:
  installation stopped by an exception from mark_install() in Cache
  class of python3-apt

Status in OEM Priority Project:
  In Progress

Bug description:
  Exception in the installation

  Aug 12 19:26:59 ubuntu /plugininstall.py: Exception during installation:
  Aug 12 19:26:59 ubuntu /plugininstall.py: Traceback (most recent call last):
  Aug 12 19:26:59 ubuntu /plugininstall.py: File 
"/usr/share/ubiquity/plugininstall.py", line 235, in run
  Aug 12 19:26:59 ubuntu /plugininstall.py: self.install_extras()
  Aug 12 19:26:59 ubuntu /plugininstall.py: File 
"/usr/share/ubiquity/plugininstall.py", line 1212, in install_extras
  Aug 12 19:26:59 ubuntu /plugininstall.py: 
self.do_install(filtered_extra_packages)
  Aug 12 19:26:59 ubuntu /plugininstall.py: File 
"/usr/lib/ubiquity/ubiquity/install_misc.py", line 941, in do_install
  Aug 12 19:26:59 ubuntu /plugininstall.py: mark_install(cache, pkg)
  Aug 12 19:26:59 ubuntu /plugininstall.py: File 
"/usr/lib/ubiquity/ubiquity/install_misc.py", line 553, in mark_install
  Aug 12 19:26:59 ubuntu /plugininstall.py: raise InstallStepError(
  Aug 12 19:26:59 ubuntu /plugininstall.py: 
ubiquity.install_misc.InstallStepError: Unable to install 'libgbm1' due to 
conflicts.

  This happen in oem project because we have lots pkg to upgrade during
  installation because the design of factory process need it.

  As package list have certain dependency, and the the order that we get
  the pkg from the python set object is not good for underlying apt
  engine, then exception will raise.

To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1908023/+subscriptions

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