From 204facc3955cdd54874ff11b6c859b32183668c4 Mon Sep 17 00:00:00 2001
From: Sven Dowideit <SvenDowideit@home.org.au>
Date: Wed, 28 Jun 2017 13:15:58 +1000
Subject: [PATCH 1/2] Add Syslinux menu with debug and autologin options

Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>
---
 scripts/isolinux.cfg       |  22 ++++++++++++++++++++--
 scripts/isolinux_label.cfg |  16 ++++++++++++++++
 scripts/package-installer  |   1 +
 scripts/package-iso        |   9 +++++----
 scripts/rancher.png        | Bin 0 -> 12734 bytes
 scripts/run                |  24 ++++++++++++++----------
 6 files changed, 56 insertions(+), 16 deletions(-)
 create mode 100644 scripts/rancher.png

diff --git a/scripts/isolinux.cfg b/scripts/isolinux.cfg
index 145d0159..a5904699 100644
--- a/scripts/isolinux.cfg
+++ b/scripts/isolinux.cfg
@@ -1,5 +1,6 @@
-TIMEOUT 20  #2s
-PROMPT 1
+UI vesamenu.c32
+TIMEOUT 20 #2s
+PROMPT 0
 
 # doesn't appear to work here?
 INCLUDE ../global.cfg
@@ -7,3 +8,20 @@ INCLUDE ../global.cfg
 # each INCLUDEd file has a `DEFAULT mylabel` in it, and the last one wins
 INCLUDE ../linux-previous.cfg
 INCLUDE ../linux-current.cfg
+
+# http://www.syslinux.org/wiki/index.php?title=Comboot/menu.c32
+LABEL Boot next BIOS option
+  MENU LABEL Boot next BIOS option
+  LOCALBOOT -1
+
+MENU TITLE RancherOS
+MENU BACKGROUND ../rancher.png
+
+MENU WIDTH 80
+MENU MARGIN 10
+MENU ROWS 12
+MENU TABMSGROW 18
+MENU CMDLINEROW 18
+MENU ENDROW 24
+MENU TIMEOUTROW 20
+
diff --git a/scripts/isolinux_label.cfg b/scripts/isolinux_label.cfg
index 1b72af06..40ac296f 100644
--- a/scripts/isolinux_label.cfg
+++ b/scripts/isolinux_label.cfg
@@ -3,7 +3,23 @@
 DEFAULT rancheros-${LABEL}
 LABEL rancheros-${LABEL}
     SAY rancheros-${LABEL}: RancherOS ${VERSION} ${KERNEL_VERSION}
+    MENU LABEL RancherOS ${VERSION} ${KERNEL_VERSION}
     KERNEL ../vmlinuz-${KERNEL_VERSION}
     INITRD ../initrd-${VERSION}
     # see global.cfg for kernel boot parameters
 
+LABEL rancheros-${LABEL}-autologin
+    SAY rancheros-${LABEL}-autologin: autologin RancherOS ${VERSION} ${KERNEL_VERSION}
+    MENU LABEL rancher.autologin
+    MENU INDENT 2
+    COM32 cmd.c32
+    APPEND rancheros-${LABEL} rancher.autologin=tty1 rancher.autologin=ttyS0
+
+LABEL rancheros-${LABEL}-debug
+    SAY rancheros-${LABEL}-debug: debug RancherOS ${VERSION} ${KERNEL_VERSION}
+    MENU LABEL rancher.debug=true
+    MENU INDENT 2
+    COM32 cmd.c32
+    APPEND rancheros-${LABEL} rancher.debug=true
+
+MENU SEPARATOR
diff --git a/scripts/package-installer b/scripts/package-installer
index 9c43b3a0..b688c2ea 100755
--- a/scripts/package-installer
+++ b/scripts/package-installer
@@ -38,6 +38,7 @@ cat scripts/isolinux.cfg | envsubst >         ${DIST}/boot/isolinux/isolinux.cfg
 cat scripts/isolinux_label.cfg | LABEL=${VERSION} envsubst >   ${DIST}/boot/linux-current.cfg
 #cat scripts/isolinux_label.cfg | LABEL=debug APPEND="rancher.debug=true" envsubst >   ${DIST}/boot/linux-previous.cfg
 cat scripts/global.cfg | LABEL=${VERSION} envsubst >   ${DIST}/boot/global.cfg
+cp scripts/rancher.png ${DIST}/boot/
 
 
 mkdir -p ./scripts/installer/build/boot
diff --git a/scripts/package-iso b/scripts/package-iso
index 629ddc09..81af4381 100755
--- a/scripts/package-iso
+++ b/scripts/package-iso
@@ -34,11 +34,12 @@ cp ${ARTIFACTS}/vmlinuz-${KERNEL_VERSION}     ${CD}/boot/
 DIST=$(pwd)/dist
 cp -r ${DIST}/boot/* ${CD}/boot/
 
-cp /usr/lib/ISOLINUX/isolinux.bin             ${CD}/boot/isolinux/
-cp /usr/lib/syslinux/modules/bios/ldlinux.c32 ${CD}/boot/isolinux/
+cp /usr/lib/ISOLINUX/isolinux.bin              ${CD}/boot/isolinux/
+cp /usr/lib/syslinux/modules/bios/ldlinux.c32  ${CD}/boot/isolinux/
+cp /usr/lib/syslinux/modules/bios/*.c32        ${CD}/boot/isolinux/
 # add the installer image to the iso for non-network / dev/test
-cp ${ARTIFACTS}/installer.tar                 ${CD}/rancheros/
-cp ${ARTIFACTS}/Dockerfile.amd64              ${CD}/rancheros/
+cp ${ARTIFACTS}/installer.tar                  ${CD}/rancheros/
+cp ${ARTIFACTS}/Dockerfile.amd64               ${CD}/rancheros/
 gzip ${CD}/rancheros/installer.tar
 cd ${CD} && xorriso \
     -as mkisofs \
diff --git a/scripts/rancher.png b/scripts/rancher.png
new file mode 100644
index 0000000000000000000000000000000000000000..0c2f2eed1e2099b6906eb29167fa9fb7dc7a1db7
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A3;+NC

literal 0
HcmV?d00001

diff --git a/scripts/run b/scripts/run
index b393ee14..94b522c8 100755
--- a/scripts/run
+++ b/scripts/run
@@ -123,6 +123,9 @@ while [ "$#" -gt 0 ]; do
         --netconsole)
             NETCONSOLE=1
             ;;
+        --gui)
+            GUICONSOLE=1
+            ;;
         --installed)
             ./scripts/create-installed
             INSTALLED=1
@@ -265,16 +268,17 @@ if [ "$QIND" != "1" ]; then
     HOME=${HOME:-/}
 fi
 
-# default serial console
-DISPLAY_OPTS="-nographic -serial mon:stdio -display none"
-
-if [ "$CONSOLEDISPLAY" == "1" ]; then
-    DISPLAY_OPTS="-curses"
-fi
-if [ "$NETCONSOLE" == "1" ]; then
-    # put ttyS1 on port 4444
-    DISPLAY_OPTS="${DISPLAY_OPTS} -serial tcp::4444,server"
-    KERNEL_ARGS="rancher.console=ttyS1 rancher.autologin=ttyS1 ${KERNEL_ARGS}"
+if [ "$GUICONSOLE" == "" ]; then
+	# default serial console
+	DISPLAY_OPTS="-nographic -serial mon:stdio -display none"
+	if [ "$CONSOLEDISPLAY" == "1" ]; then
+	    DISPLAY_OPTS="-curses"
+	fi
+	if [ "$NETCONSOLE" == "1" ]; then
+	    # put ttyS1 on port 4444
+	    DISPLAY_OPTS="${DISPLAY_OPTS} -serial tcp::4444,server"
+	    KERNEL_ARGS="rancher.console=ttyS1 rancher.autologin=ttyS1 ${KERNEL_ARGS}"
+	fi
 fi
 
 if [ "$QEMU" == "1" ]; then

From b733bde9cdcca449f0dba397dbe1e371e43df873 Mon Sep 17 00:00:00 2001
From: Sven Dowideit <SvenDowideit@home.org.au>
Date: Wed, 28 Jun 2017 23:58:14 +1000
Subject: [PATCH 2/2] add some better menu touches, make upgrade also upgrade
 to the menu, and add a ros config syslinux cmd for editing the global.cfg

Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>
---
 cmd/control/config.go                         | 21 ++++++++
 cmd/control/install.go                        | 53 ++++++++++++++++---
 dfs/scratch.go                                | 12 +++--
 .../adding-kernel-parameters/index.md         |  7 ++-
 scripts/isolinux.cfg                          | 10 +++-
 scripts/isolinux_label.cfg                    |  8 ++-
 scripts/ros                                   |  2 +-
 7 files changed, 95 insertions(+), 18 deletions(-)

diff --git a/cmd/control/config.go b/cmd/control/config.go
index 7b7379a2..91d47f62 100644
--- a/cmd/control/config.go
+++ b/cmd/control/config.go
@@ -5,6 +5,7 @@ import (
 	"io"
 	"io/ioutil"
 	"os"
+	"os/exec"
 	"sort"
 	"strings"
 	"text/template"
@@ -76,6 +77,11 @@ func configSubcommands() []cli.Command {
 				},
 			},
 		},
+		{
+			Name:   "syslinux",
+			Usage:  "edit Syslinux boot global.cfg",
+			Action: editSyslinux,
+		},
 		{
 			Name:   "validate",
 			Usage:  "validate configuration from stdin",
@@ -146,6 +152,21 @@ func env2map(env []string) map[string]string {
 	return m
 }
 
+func editSyslinux(c *cli.Context) error {
+	cmd := exec.Command("system-docker", "run", "--rm", "-it",
+		"-v", "/:/host",
+		"-w", "/host",
+		"--entrypoint=vi",
+		"rancher/os-console:"+config.Version,
+		"boot/global.cfg")
+	cmd.Stdout, cmd.Stderr, cmd.Stdin = os.Stdout, os.Stderr, os.Stdin
+	if err := cmd.Run(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func configSet(c *cli.Context) error {
 	if c.NArg() < 2 {
 		return nil
diff --git a/cmd/control/install.go b/cmd/control/install.go
index 188962ca..4af6695c 100755
--- a/cmd/control/install.go
+++ b/cmd/control/install.go
@@ -3,6 +3,7 @@ package control
 import (
 	"bufio"
 	"bytes"
+	"crypto/md5"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -923,20 +924,45 @@ func installSyslinux(device, baseName, diskType string) error {
 	return nil
 }
 
+func different(existing, new string) bool {
+	// assume existing file exists
+	if _, err := os.Stat(new); os.IsNotExist(err) {
+		return true
+	}
+	data, err := ioutil.ReadFile(existing)
+	if err != nil {
+		return true
+	}
+	newData, err := ioutil.ReadFile(new)
+	if err != nil {
+		return true
+	}
+	md5sum := md5.Sum(data)
+	newmd5sum := md5.Sum(newData)
+	if md5sum != newmd5sum {
+		return true
+	}
+	return false
+}
+
 func installRancher(baseName, VERSION, DIST, kappend string) (string, error) {
 	log.Debugf("installRancher")
 
 	// detect if there already is a linux-current.cfg, if so, move it to linux-previous.cfg,
 	currentCfg := filepath.Join(baseName, install.BootDir, "linux-current.cfg")
 	if _, err := os.Stat(currentCfg); !os.IsNotExist(err) {
-		previousCfg := filepath.Join(baseName, install.BootDir, "linux-previous.cfg")
-		if _, err := os.Stat(previousCfg); !os.IsNotExist(err) {
-			if err := os.Remove(previousCfg); err != nil {
-				return currentCfg, err
+		existingCfg := filepath.Join(DIST, "linux-current.cfg")
+		// only remove previous if there is a change to the current
+		if different(currentCfg, existingCfg) {
+			previousCfg := filepath.Join(baseName, install.BootDir, "linux-previous.cfg")
+			if _, err := os.Stat(previousCfg); !os.IsNotExist(err) {
+				if err := os.Remove(previousCfg); err != nil {
+					return currentCfg, err
+				}
 			}
+			os.Rename(currentCfg, previousCfg)
+			// TODO: now that we're parsing syslinux.cfg files, maybe we can delete old kernels and initrds
 		}
-		os.Rename(currentCfg, previousCfg)
-		// TODO: now that we're parsing syslinux.cfg files, maybe we can delete old kernels and initrds
 	}
 
 	// The image/ISO have all the files in it - the syslinux cfg's and the kernel&initrd, so we can copy them all from there
@@ -945,15 +971,26 @@ func installRancher(baseName, VERSION, DIST, kappend string) (string, error) {
 		if file.IsDir() {
 			continue
 		}
-		if err := dfs.CopyFile(filepath.Join(DIST, file.Name()), filepath.Join(baseName, install.BootDir), file.Name()); err != nil {
+		// TODO: should overwrite anything other than the global.cfg
+		overwrite := true
+		if file.Name() == "global.cfg" {
+			overwrite = false
+		}
+		if err := dfs.CopyFileOverwrite(filepath.Join(DIST, file.Name()), filepath.Join(baseName, install.BootDir), file.Name(), overwrite); err != nil {
 			log.Errorf("copy %s: %s", file.Name(), err)
 			//return err
 		}
 	}
+
 	// the general INCLUDE syslinuxcfg
-	if err := dfs.CopyFile(filepath.Join(DIST, "isolinux", "isolinux.cfg"), filepath.Join(baseName, install.BootDir, "syslinux"), "syslinux.cfg"); err != nil {
+	isolinuxFile := filepath.Join(DIST, "isolinux", "isolinux.cfg")
+	syslinuxDir := filepath.Join(baseName, install.BootDir, "syslinux")
+	if err := dfs.CopyFileOverwrite(isolinuxFile, syslinuxDir, "syslinux.cfg", true); err != nil {
 		log.Errorf("copy global syslinux.cfgS%s: %s", "syslinux.cfg", err)
 		//return err
+	} else {
+		log.Debugf("installRancher copy global syslinux.cfgS OK")
+
 	}
 
 	// The global.cfg INCLUDE - useful for over-riding the APPEND line
diff --git a/dfs/scratch.go b/dfs/scratch.go
index 560eca7d..cb89c2c3 100644
--- a/dfs/scratch.go
+++ b/dfs/scratch.go
@@ -264,15 +264,21 @@ func defaultFolders(folders ...string) error {
 }
 
 func CopyFile(src, folder, name string) error {
+	return CopyFileOverwrite(src, folder, name, false)
+}
+
+func CopyFileOverwrite(src, folder, name string, overwrite bool) error {
 	if _, err := os.Lstat(src); os.IsNotExist(err) {
 		log.Debugf("Not copying %s, does not exists", src)
 		return nil
 	}
 
 	dst := path.Join(folder, name)
-	if _, err := os.Lstat(dst); err == nil {
-		log.Debugf("Not copying %s => %s already exists", src, dst)
-		return nil
+	if !overwrite {
+		if _, err := os.Lstat(dst); err == nil {
+			log.Debugf("Not copying %s => %s already exists", src, dst)
+			return nil
+		}
 	}
 
 	if err := createDirs(folder); err != nil {
diff --git a/docs/os/configuration/adding-kernel-parameters/index.md b/docs/os/configuration/adding-kernel-parameters/index.md
index eb0179d2..35a3bcbd 100644
--- a/docs/os/configuration/adding-kernel-parameters/index.md
+++ b/docs/os/configuration/adding-kernel-parameters/index.md
@@ -10,14 +10,13 @@ There are two ways to edit the kernel parameters, in-place (editing the file and
 
 ### In-place editing
 
-For in-place editing, you will need to run a container with an editor and a mount to access the `/boot/global.cfg` file containing the kernel parameters.
+To edit the kernel boot parameters of an already installed RancherOS system, use the new `sudo ros config syslinux` editing command (uses `vi`).
 
 > To activate this setting, you will need to reboot.
 
-```bash
-$ sudo system-docker run --rm -it -v /:/host alpine vi /host/boot/global.cfg
-```
+#### Graphical boot screen
 
+RancherOS v1.1.0 added a syslinux boot menu, which on desktop systems can be switched to graphical mode by adding `UI vesamenu.c32` to a new line in `global.cfg` (use `sudo ros config syslinux` to edit the file).
 
 ### During installation
 
diff --git a/scripts/isolinux.cfg b/scripts/isolinux.cfg
index a5904699..627f72d0 100644
--- a/scripts/isolinux.cfg
+++ b/scripts/isolinux.cfg
@@ -1,4 +1,5 @@
-UI vesamenu.c32
+# Add `UI vesamenu.c32` to a new line in `global.cfg` to switch to GUI bootmenu (use `sudo ros config syslinux`)
+UI menu.c32
 TIMEOUT 20 #2s
 PROMPT 0
 
@@ -6,7 +7,14 @@ PROMPT 0
 INCLUDE ../global.cfg
 
 # each INCLUDEd file has a `DEFAULT mylabel` in it, and the last one wins
+LABEL rancheros-previous
+  MENU LABEL Previous RancherOS Version
+  MENU DISABLE
 INCLUDE ../linux-previous.cfg
+
+LABEL rancheros-current
+  MENU LABEL Current RancherOS Version
+  MENU DISABLE
 INCLUDE ../linux-current.cfg
 
 # http://www.syslinux.org/wiki/index.php?title=Comboot/menu.c32
diff --git a/scripts/isolinux_label.cfg b/scripts/isolinux_label.cfg
index 40ac296f..c4d8ae63 100644
--- a/scripts/isolinux_label.cfg
+++ b/scripts/isolinux_label.cfg
@@ -1,5 +1,4 @@
 
-# TODO: should add ros-version to label and initrd
 DEFAULT rancheros-${LABEL}
 LABEL rancheros-${LABEL}
     SAY rancheros-${LABEL}: RancherOS ${VERSION} ${KERNEL_VERSION}
@@ -22,4 +21,11 @@ LABEL rancheros-${LABEL}-debug
     COM32 cmd.c32
     APPEND rancheros-${LABEL} rancher.debug=true
 
+LABEL rancheros-${LABEL}-debug-autologin
+    SAY rancheros-${LABEL}-debug-autolgin: debug and autologin RancherOS ${VERSION} ${KERNEL_VERSION}
+    MENU LABEL rancher.debug and rancher.autologin
+    MENU INDENT 2
+    COM32 cmd.c32
+    APPEND rancheros-${LABEL} rancher.autologin=tty1 rancher.autologin=ttyS0 rancher.debug=true
+
 MENU SEPARATOR
diff --git a/scripts/ros b/scripts/ros
index d6b30e23..086261cf 100755
--- a/scripts/ros
+++ b/scripts/ros
@@ -26,4 +26,4 @@ docker run --rm -it \
 	-v /usr/share/ca-certificates:/usr/share/ca-certificates \
 	-w  /var/lib/rancher \
 	--entrypoint sh \
-		rancher/os-base:v0.8.1
+		rancher/os-base:v1.0.3