From a79e481d54860faf3a5951f1bd122ddfdfc2eb5e Mon Sep 17 00:00:00 2001
From: Pablo Greco <pgreco@centosproject.org>
Date: Aug 21 2021 16:30:46 +0000
Subject: Boot initramfs (based on markvnl's work)


---

diff --git a/SPECS/raspberrypi2.spec b/SPECS/raspberrypi2.spec
index 9031f0f..e43a228 100644
--- a/SPECS/raspberrypi2.spec
+++ b/SPECS/raspberrypi2.spec
@@ -182,6 +182,10 @@ cp -p -v arch/%{Arch}/boot/dts/overlays/README %{buildroot}/usr/share/%{name}-ke
 #scripts/mkknlimg arch/%{Arch}/boot/zImage %{buildroot}/boot/kernel-%{version}-%{release}.img
 cp -p -v arch/%{Arch}/boot/%{build_image} %{buildroot}/boot/kernel-%{version}-%{release}.img
 make INSTALL_MOD_PATH=%{buildroot} modules_install
+cat > %{buildroot}/boot/config-kernel-%{version}-%{release}.inc <<__EOF__
+kernel kernel-%{version}-%{release}.img
+initramfs initramfs-%{version}-%{release}.img followkernel
+__EOF__
 
 # kernel-devel
 DevelDir=/usr/src/kernels/%{version}-%{release}
@@ -242,21 +246,32 @@ popd
 /boot/overlays/
 /usr/share/%{name}-kernel/%{version}-%{release}/boot/overlays/*
 %attr(0755,root,root) /boot/kernel-%{version}-%{release}.img
+%ghost /boot/initramfs-%{version}-%{release}.img
+/boot/config-kernel-%{version}-%{release}.inc
 %doc /boot/COPYING.linux-%{kversion}
 
 
 %posttrans kernel%{?ksuffix}
-cp /boot/kernel-%{version}-%{release}.img /boot/kernel%{armtarget}.img
+if [ -f /boot/kernel%{armtarget}.img ] || [ ! -f /boot/config-kernel.inc ];then
+    # if nothing exists, fall back to generating the file, but don't create it
+    # if we have moved to initramfs
+    cp /boot/kernel-%{version}-%{release}.img /boot/kernel%{armtarget}.img
+fi
 cp /usr/share/%{name}-kernel/%{version}-%{release}/boot/*.dtb /boot/
 cp /usr/share/%{name}-kernel/%{version}-%{release}/boot/overlays/*.dtb* /boot/overlays/
 cp /usr/share/%{name}-kernel/%{version}-%{release}/boot/overlays/README /boot/overlays/
-#/usr/sbin/dracut /boot/initramfs-%{version}-%{release}.img %{version}-%{release}
+/usr/bin/dracut /boot/initramfs-%{version}-%{release}.img %{version}-%{release}
+cp /boot/config-kernel-%{version}-%{release}.inc /boot/config-kernel.inc
 
 %postun kernel%{?ksuffix}
-cp $(ls -1 /boot/kernel-*-*|sort -V|tail -1) /boot/kernel%{armtarget}.img
+if [ -f /boot/kernel%{armtarget}.img ];then
+    #only restore kernel%{armtarget}.img if it exists, we may have moved to initramfs
+    cp $(ls -1 /boot/kernel-*-*|sort -V|tail -1) /boot/kernel%{armtarget}.img
+fi
 cp $(ls -1d /usr/share/%{name}-kernel/*-*/|sort -V|tail -1)/boot/*.dtb /boot/
 cp $(ls -1d /usr/share/%{name}-kernel/*-*/|sort -V|tail -1)/boot/overlays/*.dtb* /boot/overlays/
 cp $(ls -1d /usr/share/%{name}-kernel/*-*/|sort -V|tail -1)/boot/overlays/README /boot/overlays/
+cp $(ls -1 /boot/config-kernel-*-*|sort -V|tail -1) /boot/config-kernel.inc
 
 
 %files kernel%{?ksuffix}-devel
@@ -279,6 +294,7 @@ cp $(ls -1d /usr/share/%{name}-kernel/*-*/|sort -V|tail -1)/boot/overlays/README
 %changelog
 * Sat Aug 21 2021 Pablo Greco <pgreco@centosproject.org> - 5.10.60
 - Update to version v5.10.60
+- Support booting from initramfs (markvnl)
 
 * Fri Jul 23 2021 Pablo Greco <pgreco@centosproject.org> - 5.10.52
 - Update to version v5.10.52