From f1718bf3e48bf3dbc48ea287118231cf195ce142 Mon Sep 17 00:00:00 2001
From: Pat Viafore <patrick.viafore@canonical.com>
Date: Tue, 4 Jun 2019 10:52:49 -0500
Subject: [PATCH] Adding hooks and making replace_kernel function

---
 live-build/functions                           | 14 ++++++++++++++
 live-build/ubuntu-cpc/hooks.d/base/series/base |  1 +
 live-build/ubuntu-cpc/hooks.d/base/series/kvm  |  2 ++
 3 files changed, 17 insertions(+)
 create mode 100644 live-build/ubuntu-cpc/hooks.d/base/series/kvm

diff --git a/live-build/functions b/live-build/functions
index 72fdb056..2bdbb623 100644
--- a/live-build/functions
+++ b/live-build/functions
@@ -877,3 +877,17 @@ is_live_layer () {
     done
     return 1
 }
+
+replace_kernel () { 
+    mountpoint=$1
+    new_kernel=$2
+
+    # Install custom kernel (N.B. the trailing + retains linux-base during this
+    # operation)
+    env DEBIAN_FRONTEND=noninteractive chroot "${mountpoint}" apt-get \
+        remove --purge --assume-yes '^linux-.*' 'linux-base+'
+    env DEBIAN_FRONTEND=noninteractive chroot "${mountpoint}" apt-get \
+        update --assume-yes
+    env DEBIAN_FRONTEND=noninteractive chroot "${mountpoint}" apt-get \
+        install --assume-yes "${new_kernel}" 
+}
\ No newline at end of file
diff --git a/live-build/ubuntu-cpc/hooks.d/base/series/base b/live-build/ubuntu-cpc/hooks.d/base/series/base
index f04bdec7..55333887 100644
--- a/live-build/ubuntu-cpc/hooks.d/base/series/base
+++ b/live-build/ubuntu-cpc/hooks.d/base/series/base
@@ -2,6 +2,7 @@ depends root-dir
 depends tarball
 depends squashfs
 depends disk-image
+depends kvm
 depends qcow2
 depends vmdk
 depends vagrant
diff --git a/live-build/ubuntu-cpc/hooks.d/base/series/kvm b/live-build/ubuntu-cpc/hooks.d/base/series/kvm
new file mode 100644
index 00000000..6c5d8b8c
--- /dev/null
+++ b/live-build/ubuntu-cpc/hooks.d/base/series/kvm
@@ -0,0 +1,2 @@
+depends disk-image
+base/kvm-image.binary
\ No newline at end of file