[Bug 1652469] Re: Boot partition too small, apt-get upgrade fails

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: debian-installer (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1652469

Title:
  Boot partition too small, apt-get upgrade fails

Status in debian-installer package in Ubuntu:
  Confirmed

Bug description:
  PROBLEM:
  On install, the boot partition has the size 244.0 MiB or 499,712 sectors

  SYMPTOM:
  This causes apt-get upgrade to fail at a later time with messages like:

  apt-get --yes dist-upgrade
  …
  update-initramfs: Generating /boot/initrd.img-4.4.0-57-generic
  gzip: stdout: No space left on device
  E: mkinitramfs failure cpio 141 gzip 1
  update-initramfs: failed for /boot/initrd.img-4.4.0-57-generic with 1.
  run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1
  dpkg: error processing package linux-image-extra-4.4.0-57-generic (--configure):
   subprocess installed post-installation script returned error exit status 1
  dpkg: dependency problems prevent configuration of linux-image-generic:
   linux-image-generic depends on linux-image-extra-4.4.0-57-generic; however:
    Package linux-image-extra-4.4.0-57-generic is not configured yet.
  …
  Errors were encountered while processing:
   linux-image-extra-4.4.0-57-generic
   linux-image-generic
   linux-generic
   linux-signed-image-generic
   linux-signed-generic
  E: Sub-process /usr/bin/dpkg returned an error code (1)
  - status code: 100

  FIX:
  usually want multiple of 2,048 sectors / 1 MiB
  One kernel revision is 56 MiB
  Miscellaneous files is 28 MiB
  File system overhead is 11 MiB
  Typically there are 3 kernels: is the running, the latest and the second to latest
  56 * 3 + 28 = 196 MiB
  A system upgrade requires 120 MiB free
  So /boot should be at least 196 + 11 + 120 = 327 MiB in 1 MiB increments
  A power of 2 would be 512 MiB or 1,048,576 sectors

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