[alpine] update for stuff

alpine-rebuild-initramfs.sh

@@ -29,27 +29,28 @@ curl "$rootfs_url" -o "$working_directory/$IMAGE"
 tar xf $IMAGE -C $rootfs_tmpdir
 
 # Add SSH keys
-run_root mkdir root/.ssh
+run_root mkdir -p root/.ssh
 echo $SSH_KEYS > $rootfs_tmpdir/root/.ssh/authorized_keys
 run_root chmod 0600 root/.ssh/authorized_keys
 run_root chmod 0700 root/.ssh
 
 # Import local resolv.conf.
-cat $RESOLVCONF > $rootfs_tmpdir/etc/resolv.conf
+cat "$RESOLVCONF" > $rootfs_tmpdir/etc/resolv.conf
 
 # Make sure init is found by the kernel.
 run_root ln -s /sbin/init /init
 
-cat > $rootfs_tmpdir/etc/network/interfaces <<EOF
+cat > "$rootfs_tmpdir/etc/network/interfaces" <<EOF
 auto lo
 iface lo inet loopback
 
 auto eth0
-iface eth0 inet6 auto
-    post-up ip addr show dev eth0 | grep inet6 | tee -a /etc/issue
+iface eth0 inet6 manual
+    pre-up modprobe ipv6 && sysctl -w net.ipv6.conf.eth0.accept_ra=1
+    post-up ip addr show dev eth0 | grep inet6 >> /etc/issue
 EOF
 
-cat > $rootfs_tmpdir/etc/hostname <<EOF
+cat > "$rootfs_tmpdir/etc/hostname" <<EOF
 alpine-unconfigured
 EOF
 
@@ -62,13 +63,15 @@ run_root rc-update add sshd
 run_root rc-update add networking
 run_root rc-update add hostname
 
+# FIXME: add / install rdnssd / ndisc6 / start it on boot
+# ndisc6 is only @testing
+
 # Generate iniramfs image
 (cd $rootfs_tmpdir; find . | cpio -H newc -o | gzip -9 > "$working_directory/alpine-initramfs.gz")
-cp $rootfs_tmpdir/boot/vmlinuz-vanilla "$working_directory/alpine-kernel"
-
-# Upload to netboot server.
-scp alpine-initramfs.gz alpine-kernel root@netboot.hack4glarus.ungleich.cloud:/var/www/html/
+cp "$rootfs_tmpdir/boot/vmlinuz-vanilla" "$working_directory/alpine-kernel"
 
 # Cleanup.
-rm -r $rootfs_tmpdir
-(cd "$working_directory/"; rm vmlinuz-vanilla alpine-kernel $IMAGE)
+rm -r "$rootfs_tmpdir"
+
+# Upload to netboot server. - needs to be done outside sudo
+echo "Use alpine-initramfs.gz alpine-kernel from $working_directory"!