[Bug 1968154] Re: Only keep 2 kernels

[Julian Andres Klode]

** Also affects: apt (Ubuntu Bionic)
   Importance: Undecided
       Status: New

** Also affects: unattended-upgrades (Ubuntu Bionic)
   Importance: Undecided
       Status: New

** Also affects: apt (Ubuntu Impish)
   Importance: Undecided
       Status: New

** Also affects: unattended-upgrades (Ubuntu Impish)
   Importance: Undecided
       Status: New

** Also affects: apt (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: unattended-upgrades (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Changed in: apt (Ubuntu Impish)
       Status: New => In Progress

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to unattended-upgrades in Ubuntu.
https://bugs.launchpad.net/bugs/1968154

Title:
  Only keep 2 kernels

Status in apt package in Ubuntu:
  Fix Released
Status in unattended-upgrades package in Ubuntu:
  Invalid
Status in apt source package in Bionic:
  New
Status in unattended-upgrades source package in Bionic:
  New
Status in apt source package in Focal:
  New
Status in unattended-upgrades source package in Focal:
  New
Status in apt source package in Impish:
  In Progress
Status in unattended-upgrades source package in Impish:
  New

Bug description:
  [Impact]
  APT currently keeps 3 kernels or even 4 in some releases. Our boot partition is sized for a steady state of 2 kernels + 1 new one being unpacked, hence users run out of space and new kernels fail to install, upgrade runs might abort in the middle. It's not nice.

  [Test plan]
  1. Have two kernels installed (let's call them version 3, 2)
  2. Check that both kernels are not autoremovable
  3. Install an old kernel (let's call it 1), and mark it automatic
  4. Check that 1 will be autoremovable (apt autoremove -s)
  5. Reboot into 1, check that 2 is autoremovable (apt autoremove -s)
  6. Actually remove 2
  7. Reboot into 3 and check that both 1 and 3 are now not autoremovable

  unattended-upgrades may need changes to its test suite to accommodate
  this.

  [Where problems could occur]
  We could keep the wrong kernels installed that the user did not expect.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1968154/+subscriptions