[Bug 1851190] Please test proposed package

[Timo Aaltonen]

Hello Prabhakar, or anyone else affected,

Accepted grub2-signed into bionic-proposed. The package will build now
and be available at
https://launchpad.net/ubuntu/+source/grub2-signed/1.93.15 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: grub2-signed (Ubuntu Disco)
       Status: New => Fix Released

** Changed in: grub2-signed (Ubuntu Eoan)
       Status: New => Fix Released

** Changed in: grub2-signed (Ubuntu Focal)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1851190

Title:
  Ubuntu 18.04: kexec-tool shows "kexec: elfcorehdr doesn't fit cells-
  size" if crashkernel reserved beyond 4GB

Status in grub2 package in Ubuntu:
  Fix Released
Status in grub2-signed package in Ubuntu:
  Fix Released
Status in grub2 source package in Bionic:
  Fix Committed
Status in grub2-signed source package in Bionic:
  Fix Committed
Status in grub2 source package in Disco:
  Fix Released
Status in grub2-signed source package in Disco:
  Fix Released
Status in grub2 source package in Eoan:
  Fix Released
Status in grub2-signed source package in Eoan:
  Fix Released
Status in grub2 source package in Focal:
  Fix Released
Status in grub2-signed source package in Focal:
  Fix Released

Bug description:
  [Impact]
  On arm64, kexec throws following errors if crashkernel is reserved beyond 4GB of system memory.

  [Test Case]
  Create an arm64 guest w/ say 6GiB of memory.
  Add crashkernel=1G at 4G to kernel boot args

  $ kexec -p /boot/vmlinuz-`uname -r` --initrd=/boot/initrd.img-`uname
  -r` --reuse-cmdline
  $ kexec: elfcorehdr doesn't fit cells-size.
  $ kexec: setup_2nd_dtb failed.
  $ kexec: load failed.
  $ Cannot load /boot/vmlinuz-5.4.0-rc4+

  [Fix]
  Backport the following upstream commits:
  347210a5d efi/fdt: Set address/size cells to 2 for empty tree
  e93fd6b77 fdt: Move prop_entry_size to fdt.h

  [Regression Risk]
  Changes are restricted to efi/fdt code in GRUB, so regressions would be most likely on ARM platforms, specifically those that boot using ACPI (mostly servers).

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