When I said in I8594d1fe05242f246a5809740a115ab2f84ac5a3 that 12 MiB
ought to be enough, I should have expected that I would be proven wrong.
While 12 MiB is enough to fit shim-x64 and grub2-efi-x64, yum fails to
update these packages to newer versions:
Transaction check error:
installing package shim-x64-15-2.el7.centos.x86_64 needs 7MB on the /boot/efi filesystem
installing package grub2-efi-x64-1:2.02-0.76.el7.centos.1.x86_64 needs 3MB on the /boot/efi filesystem
Error Summary
-------------
Disk Requirements:
At least 7MB more space needed on the /boot/efi filesystem.
It is recommended that the ESP partition be much bigger. This commit
bumps its size to 550MiB, following guidelines from Rod Smith to avoid
incompatibilities with some EFIs [1].
[1] https://www.rodsbooks.com/efi-bootloaders/principles.html
Change-Id: If9515234f1a803cda32b2482f8abe10ddf0e6d26
8 MiB is not enough when using the grub2 element with centos7 images,
which installs binaries from the shim-x64 and grub2-efi-x64 packages
under /boot/efi. 12 MiB ought to be enough for anybody.
Change-Id: I8594d1fe05242f246a5809740a115ab2f84ac5a3
In the prior change we added block-device-[mbr|gpt|efi] elements to
create appropriate disk-layouts.
This adds an environment flag to each so the bootloader can install
the right thing. The EFI install path is updated to work with this
(this part a copy of I572937945adbb5adaa5cb09200752e323c2c9531)
We do some basic sanity checking in the block-device elements;
e.g. mbr is not suitable for aarch64, and efi is not suitable for
power.
This updates the bootloader to install EFI where appropriate
Co-Authored-By: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Change-Id: Ib80acbfd9a12efd976c3fa15a5d1081eb0799305
This moves the block-device default out of the "vm" element and into a
selection of other elements. There's "mbr" which retains the status
quo. There's an EFI version that has the boot/grub partitions as
required. In between there's the GPT only version, which is useful
for architectures like power without EFI, but still want possible
larger disks using GPT.
Change-Id: I4a566a97d073fc0dda0ab2494ac988fe015800a9
