Support legacy MBR (msdos) as part of UEFI to enable hybrid builds

0003-Support-legacy-MBR-as-part-of-UEFI.patch

@@ -0,0 +1,40 @@
+From 2050395b053e4813da20f1c3bc39d74a8e45803f Mon Sep 17 00:00:00 2001
+From: Peter Robinson <pbrobinson@gmail.com>
+Date: Thu, 7 Mar 2019 20:57:59 +0000
+Subject: [PATCH] Support legacy MBR (msdos) as part of UEFI to enable hybrid
+ builds
+
+The UEFI spec supports legacy MBR (msdos) in section 5.2 of the UEFI 2.7 spec [1].
+There's a number of use cases where we might boot on a UEFI device but want to
+support, but not by default, the creation of images using legacy MBR partitions.
+One of these use cases is cloud images where we can produce a single image
+tha will run on UEFI supported, including secure-boot, clouds but also
+support AWS which only supports MBR partitioning schemes [2] and in the current
+config anaconda fails the install where this is a perfectly valid and widely
+supported deployment mechanism.
+
+So enable the ability to use legacy msdos partitioning schemes, but don't use
+it for default installs, so people may consume this mechanism using kickstarts
+rather than having the install fail for a valid use case.
+
+[1] https://uefi.org/sites/default/files/resources/UEFI%20Spec%202_7_A%20Sept%206.pdf
+[2] https://docs.aws.amazon.com/vm-import/latest/userguide/vmie_prereqs.html
+
+Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
+---
+ blivet/formats/disklabel.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/blivet/formats/disklabel.py b/blivet/formats/disklabel.py
+index 75867d6a..8186d1a1 100644
+--- a/blivet/formats/disklabel.py
++++ b/blivet/formats/disklabel.py
+@@ -228,7 +228,7 @@ def get_platform_label_types(cls):
+         elif arch.is_efi() and arch.is_arm():
+             label_types = ["msdos", "gpt"]
+         elif arch.is_efi() and not arch.is_aarch64():
+-            label_types = ["gpt"]
++            label_types = ["gpt", "msdos"]
+         elif arch.is_s390():
+             label_types = ["msdos", "dasd"]
+ 

python-blivet.spec

@@ -23,7 +23,7 @@ Version: 3.1.2
 
 #%%global prerelease .b2
 # prerelease, if defined, should be something like .a1, .b1, .b2.dev1, or .c2
-Release: 2%{?prerelease}%{?dist}
+Release: 3%{?prerelease}%{?dist}
 Epoch: 1
 License: LGPLv2+
 Group: System Environment/Libraries
@@ -32,6 +32,7 @@ Group: System Environment/Libraries
 Source0: http://github.com/storaged-project/blivet/archive/%{realname}-%{realversion}.tar.gz
 Patch0: 0001-force-lvm-plugin.patch
 Patch1: 0002-Dont-crash-if-blockdev-mpath-plugin-isnt-available.patch
+Patch2: 0003-Support-legacy-MBR-as-part-of-UEFI.patch
 
 # Versions of required components (done so we make sure the buildrequires
 # match the requires versions of things).
@@ -192,6 +193,9 @@ configuration.
 %endif
 
 %changelog
+* Mon Mar 11 2019 Vojtech Trefny <vtrefny@redhat.com> - 3.1.2-3
+- Support legacy MBR (msdos) as part of UEFI to enable hybrid builds
+
 * Mon Mar 04 2019 Vojtech Trefny <vtrefny@redhat.com> - 3.1.2-2
 - Don't crash if blockdev mpath plugin isn't available (dlehman)