[Bug 1512347] Update Released

[Chris J Arges]

The verification of the Stable Release Update for base-installer has
completed successfully and the package has now been released to
-updates.  Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1512347

Title:
  invalid sources.list generated from reading apt-
  setup/local0/repository

Status in base-installer package in Ubuntu:
  Fix Released
Status in base-installer source package in Xenial:
  Fix Released

Bug description:
  [Impact]
  Server users installing with a preseeded local repository.

  [Test case]
  Preseed "apt-setup/local0/repository" for a server install.
  The installation process should complete normally, and the local repository should be enabled on the installed system.

  [Regression Potential]
  This adds support for handling local repositories and configuring them in preseed without adding the "deb" prefix to specify the type of source entry. There is no likely regression type except that of enabling local repositories on installs where the preseed is present and currently seen as invalid by base-installer where the issue was not noticed by systems administrators.

  ---

  hi,
  it looks like configure_apt from library.sh will add the contents of apt-setup/local0/repository verbatim to the sources file. This works only if the repository is prefixed with "deb ", which for apt-setup is optional. Not using a repository prefixed with "deb" will result in an invalid sources.list file. See also https://phabricator.wikimedia.org/T94177 and https://gerrit.wikimedia.org/r/250380

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