[Bug 1808056] Re: vmlinuz is very large in arm64 -raspi2

[Łukasz Zemczak]

The needed flash-kernel changes landed in 3.98ubuntu2, setting to Fix
Released. Should we start looking into building compressed linux-raspi2
kernels for eoan?

** Changed in: flash-kernel (Ubuntu)
       Status: In Progress => Fix Released

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Title:
  vmlinuz is very large in arm64 -raspi2

Status in flash-kernel package in Ubuntu:
  Fix Released
Status in linux-raspi2 package in Ubuntu:
  Triaged

Bug description:
  The debs are close to the same size:

  mwhudson at ringil:~/Downloads$ ls -l linux-image-4.15.0-1030-raspi2_4.15.0-1030.32_arm64.deb 
  -rw-rw-r-- 1 mwhudson mwhudson 5398652 Dec 12 10:42 linux-image-4.15.0-1030-raspi2_4.15.0-1030.32_arm64.deb
  mwhudson at ringil:~/Downloads$ ls -l linux-image-4.15.0-1030-raspi2_4.15.0-1030.32_armhf.deb 
  -rw-rw-r-- 1 mwhudson mwhudson 6640960 Dec 12 10:42 linux-image-4.15.0-1030-raspi2_4.15.0-1030.32_armhf.deb

  But the vmlinuz on arm64 is several times larger:

  $ dpkg-deb -c linux-image-4.15.0-1030-raspi2_4.15.0-1030.32_armhf.deb 
  -rw------- root/root   6633048 2018-12-07 06:38 ./boot/vmlinuz-4.15.0-1030-raspi2
  $ dpkg-deb -c linux-image-4.15.0-1030-raspi2_4.15.0-1030.32_arm64.deb 
  -rw------- root/root  23914504 2018-12-07 06:38 ./boot/vmlinuz-4.15.0-1030-raspi2

  This forced us to make the boot partition larger for the raspi3 b+
  arm64 image we made.

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