** Description changed:

+ [Impact]
+ Currently the xenial ubuntu-image package fails autopkgtests due to the
+ missing fakeroot dependency. Xenial has an older mkfs.ext4 that does not
+ support a parameter that all the other series are using. Because of
+ that, fakeroot is not really used on this release as by default the
+ first call of mkfs.ext4 which is assuming the existence of the '-d'
+ option is supposed to fail and then u-i is moving on to using a fallback
+ method of copying rootfs contents into the filesystem. To the first call
+ of the mkfs.ext4 call we have recently added fakeroot (due to a security
+ vulnerability discovered).
+ The failure of calling mkfs.ext4 with an unrecognized parameter and
+ calling fakeroot mkfs.ext4 when fakeroot is not installed both generate
+ different errors (the first one causes run() to exit with error and the
+ second one rises a FileNotFoundError exception). We can easily support
+ both cases, but then we are encountering code coverage issues - as in
+ the best case we want to have the same code for all supported series.
+ It's not easy to mock this case in unit tests as in theory we will never
+ be able to reach this FileNotFoundError branch on non-xenial systems. It
+ basically requires a lot of unnecessary work that's not bringing any
+ real merits.
+ [Fix]
+ Just dropping this part of the delta and adding the fakeroot dependency
+ fixes all problems with little effort.
+ [Test Case]
+ Make sure that the xenial autopkgtests pass.
+ [Regression Potential]
+ None - really. We're only adding the fakeroot dependency that is
+ installed on all the other series for the same ubuntu-image version
+ already. Installing this dependency does not change anything in the
+ logic of ubuntu-image - the only time it is used is for the first
+ mkfs.ext4 command which always fails (due to being too old to support
+ the required options).
+ [Original description]
  There is a delta in xenial. We need to support missing fakeroot.

** Also affects: ubuntu-image (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: ubuntu-image (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: ubuntu-image (Ubuntu Xenial)
       Status: New => In Progress

** Changed in: ubuntu-image (Ubuntu)
       Status: New => Fix Released

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  Tests failing on xenial due to missing fakeroot command

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