Revert "Upgrade Buildroot to 2019.02 LTS and Linux to 5.4"

This reverts commit b53518d7.

Makefile

@@ -32,7 +32,7 @@ RPM_VERSION ?= $(DEB_VERSION)
 GO_VERSION ?= 1.13.9
 
 INSTALL_SIZE ?= $(shell du out/minikube-windows-amd64.exe | cut -f1)
-BUILDROOT_BRANCH ?= 2020.02.2
+BUILDROOT_BRANCH ?= 2019.02.10
 REGISTRY?=gcr.io/k8s-minikube
 
 # Get git commit id
@@ -53,7 +53,7 @@ MINIKUBE_BUCKET ?= minikube/releases
 MINIKUBE_UPLOAD_LOCATION := gs://${MINIKUBE_BUCKET}
 MINIKUBE_RELEASES_URL=https://github.com/kubernetes/minikube/releases/download
 
-KERNEL_VERSION ?= 5.4.40
+KERNEL_VERSION ?= 4.19.107
 # latest from https://github.com/golangci/golangci-lint/releases
 GOLINT_VERSION ?= v1.26.0
 # Limit number of default jobs, to avoid the CI builds running out of memory

deploy/iso/minikube-iso/configs/minikube_defconfig

@@ -3,10 +3,9 @@ BR2_CCACHE=y
 BR2_OPTIMIZE_2=y
 BR2_TOOLCHAIN_BUILDROOT_VENDOR="minikube"
 BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
-BR2_SSP_STRONG=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_4=y
-BR2_BINUTILS_VERSION_2_32_X=y
-BR2_GCC_VERSION_9_X=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_19=y
+BR2_BINUTILS_VERSION_2_30_X=y
+BR2_GCC_VERSION_7_X=y
 BR2_TOOLCHAIN_BUILDROOT_CXX=y
 BR2_GCC_ENABLE_LTO=y
 BR2_TARGET_GENERIC_HOSTNAME="minikube"
@@ -37,6 +36,7 @@ BR2_PACKAGE_SSHFS=y
 BR2_PACKAGE_XFSPROGS=y
 BR2_PACKAGE_PARTED=y
 BR2_PACKAGE_CA_CERTIFICATES=y
+BR2_PACKAGE_CURL=y
 BR2_PACKAGE_BRIDGE_UTILS=y
 BR2_PACKAGE_EBTABLES=y
 BR2_PACKAGE_ETHTOOL=y
@@ -53,6 +53,7 @@ BR2_PACKAGE_LIBCURL_CURL=y
 BR2_PACKAGE_LIBOPENSSL=y
 BR2_PACKAGE_LIBOPENSSL_BIN=y
 BR2_PACKAGE_OPENVMTOOLS=y
+BR2_PACKAGE_OPENVMTOOLS_PROCPS=y
 BR2_PACKAGE_SYSTEMD_LOGIND=y
 BR2_PACKAGE_SYSTEMD_MACHINED=y
 BR2_PACKAGE_SYSTEMD_VCONSOLE=y

deploy/iso/minikube-iso/package/hyperv-daemons/hyperv-daemons.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 HYPERV_DAEMONS_VERSION = $(call qstrip,$(BR2_LINUX_KERNEL_VERSION))
-HYPERV_DAEMONS_SITE = https://www.kernel.org/pub/linux/kernel/v5.x
+HYPERV_DAEMONS_SITE = https://www.kernel.org/pub/linux/kernel/v4.x
 HYPERV_DAEMONS_SOURCE = linux-$(HYPERV_DAEMONS_VERSION).tar.xz
 
 define HYPERV_DAEMONS_BUILD_CMDS