Public bug reported:
SRU Justification
Impact: Our kernel packaging currently has support for backporting
kernels to older releases. This includes appending ~BACKPORT_SUFFIX to
the version string for the backport kernel, where BACKPORT_SUFFIX is
defined in update.conf. We need to start doing similar forward ported
kernels, but BACKPORT_SUFFIX should be appended using a + rather than a
~. Our kernel packaging cannot easily determine whether a + or a ~ is
appropriate.
Fix: Move the leading character into BACKPORT_SUFFIX, and do not insert
any leading characters from the kernel packaging scripts. Since the
script which generates update.conf has access to information from
kernel-series, it can more easily determine whether + or ~ is the
appropriate leader.
Test Case: Run through the normal steps for updating a backport kernel.
The version string generated should have ~SERIES for a backport to an
older series, and +SERIES for a backport to a newer series.
Regression Potential: Backport kernels could end up with an incorrect
version strings. Since all kernel uploads undergo review, any such
errors should be caught before uploading.
** Affects: linux (Ubuntu)
Importance: Medium
Assignee: Seth Forshee (sforshee)
Status: In Progress
** Affects: linux (Ubuntu Precise)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Trusty)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Hirsute)
Importance: Medium
Assignee: Seth Forshee (sforshee)
Status: In Progress
** Also affects: linux (Ubuntu Hirsute)
Importance: Medium
Assignee: Seth Forshee (sforshee)
Status: In Progress
** Also affects: linux (Ubuntu Trusty)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Precise)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1902957
Title:
Update kernel packaging to support forward porting kernels
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