From 704f2dab7c35bc4c83e4527a22e8a5025fdc4e8e Mon Sep 17 00:00:00 2001
From: Nico Schottelius <nico@nico-notebook.schottelius.org>
Date: Sun, 1 Dec 2019 01:18:21 +0100
Subject: [PATCH] add udev-trigger for loading the network card

---
 alpine-rebuild-initramfs.sh | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/alpine-rebuild-initramfs.sh b/alpine-rebuild-initramfs.sh
index d9dfab9..643cc3f 100755
--- a/alpine-rebuild-initramfs.sh
+++ b/alpine-rebuild-initramfs.sh
@@ -40,25 +40,38 @@ cat "$RESOLVCONF" > $rootfs_tmpdir/etc/resolv.conf
 # Make sure init is found by the kernel.
 run_root ln -s /sbin/init /init
 
+# Servers have static addresses, disable the standard
+# alpine setting of using tempaddr = 2
+cat > "$rootfs_tmpdir/etc/sysctl.d/99-ipv6.conf" <<EOF
+net.ipv6.conf.default.use_tempaddr = 0
+net.ipv6.conf.all.use_tempaddr = 0
+
+net.ipv6.conf.all.accept_ra = 1
+EOF
+
 cat > "$rootfs_tmpdir/etc/network/interfaces" <<EOF
 auto lo
 iface lo inet loopback
 
 auto eth0
 iface eth0 inet6 manual
-    pre-up modprobe ipv6 && sysctl -w net.ipv6.conf.eth0.accept_ra=1
+    pre-up ip link set eth0 up
     post-up ip addr show dev eth0 | grep inet6 >> /etc/issue
+    post-up echo post post up >> /etc/issue
 EOF
 
 cat > "$rootfs_tmpdir/etc/hostname" <<EOF
 alpine-unconfigured
 EOF
 
+echo ipv6 >> "$rootfs_tmpdir/etc/modules"
+
 # Layer atop base rootfs.
 run_root apk update
 run_root apk upgrade
 run_root apk add openssh linux-vanilla openrc udev
 run_root rc-update add udev
+run_root rc-update add udev-trigger
 run_root rc-update add sshd
 run_root rc-update add networking
 run_root rc-update add hostname
@@ -71,7 +84,7 @@ run_root rc-update add hostname
 cp "$rootfs_tmpdir/boot/vmlinuz-vanilla" "$working_directory/alpine-kernel"
 
 # Cleanup.
-rm -r "$rootfs_tmpdir"
+#rm -r "$rootfs_tmpdir"
 
 # Upload to netboot server. - needs to be done outside sudo
 echo "Use alpine-initramfs.gz alpine-kernel from $working_directory"!