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diskimage-builder/diskimage_builder/elements/centos/environment.d/10-centos-distro-name.bash

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Add CentOS 8 support * Add "centos" element, a CentOS version-independent element. This is in line with the same work done for RHEL in Stein cycle. * Deprecate the centos7 element. CentOS 7 support itself it not deprecated though. The new "centos" element provides the same support level as the "centos7" element. * Add functional testing The default CentOS version is 8. You can adjust it using the DIB_RELEASE environment variable. Change-Id: I373ba2296c4613765676e59aabd9c651345298d1
2019-09-24 10:46:12 +00:00
export DISTRO_NAME=centos
export DIB_RELEASE=${DIB_RELEASE:-8}
Support secure-boot bootloader where possible As of grub2 >= 2.02-95 on redhat family distros, calling grub2-install on an EFI partition will fail with: "this utility cannot be used for EFI platforms because it does not support UEFI Secure Boot." This version of grub is now in centos8-stream and non-eus repos of RHEL-8. It is not currently possible to build whole-disk UEFI images on these distros, and when this package is promoted this will also affect centos8 and RHEL-8 eus. The grub maintainers made this change because the grub2-install generated /boot/efi/EFI/BOOT/BOOTX64.EFI will never be capable of booting with Secure Boot. This change defines a $EFI_BOOT_DIR for every distro element. When directory /boot/efi/$EFI_BOOT_DIR exists a grub.cfg file in will be generated there. This change also installs the shim package on redhat family distros, which installs a copy of the shim bootloader to /boot/efi/EFI/BOOT/BOOTX64.EFI. Using centos as an example, this allows UEFI to boot the shim /boot/efi/EFI/BOOT/BOOTX64.EFI which then chains to /boot/efi/EFI/centos/grubx64.efi. If /boot/efi/$EFI_BOOT_DIR doesn't exist (such as for Ubuntu, /boot/efi/EFI/ubuntu) the current behaviour of running grub-install to generate /boot/efi/EFI/BOOT/BOOTX64.EFI will continue. For distros such as Ubutnu where packaging does not populate /boot/efi/EFI/ubuntu with .efi files, secure boot can be added in the future by copying .efi files to /boot/efi/EFI/ubuntu and copying the shim file to /boot/efi/EFI/BOOT/BOOTX64.EFI. Change-Id: I90925218ff2aa4c4daffcf86e686b6d98d6b0f21
2021-03-05 03:35:21 +00:00
export EFI_BOOT_DIR="EFI/centos"
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