[Bug 1778738] Re: Default to early instead of auto if MODULES=most

[Julian Andres Klode]

trusty before:
[...]
Calling hook amd64_microcode
Calling hook compcache
[...]
Calling hook intel_microcode                         
intel-microcode: adding microcode for currently online and selected Intel processors                                                         
intel-microcode: using early initramfs microcode update mode...
[...]

(that is, no amd, only current intel)

install versions from proposed:
[...]
Unpacking amd64-microcode (3.20180524.1~ubuntu0.14.04.2+really20130710.1ubuntu1) over (3.20180524.1~ubuntu0.14.04.2+really20130710.1) ...
Unpacking intel-microcode (3.20180425.1~ubuntu0.14.04.2) over (3.20180425.1~ubuntu0.14.04.1) ...
[...]


then:
Calling hook amd64_microcode                                                           
amd64-microcode: installing all microcode datafiles for AMD64 processors       
amd64-microcode: installing AMD64 processor microcode update support into initramfs...
[...]
Calling hook intel_microcode
intel-microcode: adding microcode for either all or selected Intel processor models                                                          
intel-microcode: using early initramfs microcode update mode...


lsinitramfs here also shows microcode for both:
kernel
kernel/x86
kernel/x86/microcode
kernel/x86/microcode/GenuineIntel.bin
[...]
lib/firmware/amd-ucode
lib/firmware/amd-ucode/microcode_amd.bin
lib/firmware/amd-ucode/microcode_amd_fam15h.bin


(note that trusty does not have early microcode loading for amd, only for intel).

** Tags removed: verification-needed-trusty
** Tags added: verification-done-trusty

** Tags removed: verification-needed verification-needed-artful
** Tags added: verification-done

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https://bugs.launchpad.net/bugs/1778738

Title:
  Default to early instead of auto if MODULES=most

Status in amd64-microcode package in Ubuntu:
  Fix Released
Status in intel-microcode package in Ubuntu:
  Fix Released
Status in amd64-microcode source package in Trusty:
  Fix Committed
Status in intel-microcode source package in Trusty:
  Fix Committed
Status in amd64-microcode source package in Xenial:
  Fix Released
Status in intel-microcode source package in Xenial:
  Fix Released
Status in amd64-microcode source package in Artful:
  Won't Fix
Status in intel-microcode source package in Artful:
  Won't Fix
Status in amd64-microcode source package in Bionic:
  Fix Released
Status in intel-microcode source package in Bionic:
  Fix Released

Bug description:
  [Impact]
  Initramfs for MODULES=most should build with all microcodes installed

  [Test case]
  Have both amd64-microcode and intel-microcode installed, and MODULES=most set. Test generated initramfs in both amd64 and intel machines and make sure the microcodes load.

  If that's not feasible, we should at least run update-initramfs with
  -v and ensure that it says the right things:

  I: amd64-microcode: installing AMD64 microcode into the early initramfs...              
  intel-microcode: adding microcode for either all or selected Intel processor models
  [long list of microcodes]

  
  [Regression potential]
  Some tools will fail to understand the initramfs, as it now has two cpio archives prepended (e.g. lsinitramfs skips intel microcode archive, as seen in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=886424)

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