[Bug 1824866] Re: python3-distupgrade missing a dep on python3-distro-info

[Brian Murray]

** Description changed:

+ [Impact]
+ Release upgrades on a system w/o python3-distro-info will crash.
+ 
+ [Test Case]
+ On a bionic-amd64 chroot:
+ 
  (bionic-amd64)root at impulse:/home/bdmurray/Documents# do-release-upgrade
  Checking for a new Ubuntu release
  Get:1 Upgrade tool signature [819 B]
  Get:2 Upgrade tool [1250 kB]
  Fetched 1251 kB in 0s (0 B/s)
  authenticate 'cosmic.tar.gz' against 'cosmic.tar.gz.gpg'
  extracting 'cosmic.tar.gz'
  
  A fatal error occurred
  
  Please report this as a bug and include the files
  /var/log/dist-upgrade/main.log and /var/log/dist-upgrade/apt.log in
  your report. The upgrade has aborted.
  Your original sources.list was saved in
  /etc/apt/sources.list.distUpgrade.
  
  Traceback (most recent call last):
  
  File "/tmp/ubuntu-release-upgrader-wvzfz5ou/cosmic", line 8, in
  <module>
  sys.exit(main())
  
  File
  "/tmp/ubuntu-release-upgrader-wvzfz5ou/DistUpgrade/DistUpgradeMain.py",
  line 224, in main
  from .DistUpgradeController import DistUpgradeController
  
  File
  "/tmp/ubuntu-release-upgrader-wvzfz5ou/DistUpgrade/DistUpgradeController.py",
  line 25, in <module>
  import distro_info
  
  ModuleNotFoundError: No module named 'distro_info'
  
- This a result of the SRU of the fix for bug 1799310 while the new
- dependency was added to the cosmic version of u-r-u that doesn't help
- because the dist-upgrader tarball doesn't reflect that dependency.
+ With the version of the package from -proposed you'll receive no such
+ traceback.
+ 
+ [Regression Potential]
+ We are just adding a new dependency so none.
+ 
+ Original Description
+ --------------------
+ This a result of the SRU of the fix for bug 1799310 while the new dependency was added to the cosmic version of u-r-u that doesn't help because the dist-upgrader tarball doesn't reflect that dependency.

** Changed in: ubuntu-release-upgrader (Ubuntu Bionic)
       Status: Triaged => In Progress

** Changed in: ubuntu-release-upgrader (Ubuntu Bionic)
     Assignee: (unassigned) => Brian Murray (brian-murray)

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https://bugs.launchpad.net/bugs/1824866

Title:
  python3-distupgrade missing a dep on python3-distro-info

Status in ubuntu-release-upgrader package in Ubuntu:
  Fix Released
Status in ubuntu-release-upgrader source package in Bionic:
  In Progress

Bug description:
  [Impact]
  Release upgrades on a system w/o python3-distro-info will crash.

  [Test Case]
  On a bionic-amd64 chroot:

  (bionic-amd64)root at impulse:/home/bdmurray/Documents# do-release-upgrade
  Checking for a new Ubuntu release
  Get:1 Upgrade tool signature [819 B]
  Get:2 Upgrade tool [1250 kB]
  Fetched 1251 kB in 0s (0 B/s)
  authenticate 'cosmic.tar.gz' against 'cosmic.tar.gz.gpg'
  extracting 'cosmic.tar.gz'

  A fatal error occurred

  Please report this as a bug and include the files
  /var/log/dist-upgrade/main.log and /var/log/dist-upgrade/apt.log in
  your report. The upgrade has aborted.
  Your original sources.list was saved in
  /etc/apt/sources.list.distUpgrade.

  Traceback (most recent call last):

  File "/tmp/ubuntu-release-upgrader-wvzfz5ou/cosmic", line 8, in
  <module>
  sys.exit(main())

  File
  "/tmp/ubuntu-release-upgrader-wvzfz5ou/DistUpgrade/DistUpgradeMain.py",
  line 224, in main
  from .DistUpgradeController import DistUpgradeController

  File
  "/tmp/ubuntu-release-upgrader-wvzfz5ou/DistUpgrade/DistUpgradeController.py",
  line 25, in <module>
  import distro_info

  ModuleNotFoundError: No module named 'distro_info'

  With the version of the package from -proposed you'll receive no such
  traceback.

  [Regression Potential]
  We are just adding a new dependency so none.

  Original Description
  --------------------
  This a result of the SRU of the fix for bug 1799310 while the new dependency was added to the cosmic version of u-r-u that doesn't help because the dist-upgrader tarball doesn't reflect that dependency.

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