DRAFT: use grub2 for bios boot

config/media-files/GRMLBASE/GRML/GRML_NAME/grml-cheatcodes.txt

@@ -259,9 +259,11 @@ the configuration framework of grml.
 *) If you wish to remaster the CD, please don't forget to specify
 
         -no-emul-boot -boot-load-size 4 -boot-info-table \
-        -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat
+        -b boot/grub/i386-pc/eltorito.img \
+        --grub2-boot-info --grub2-mbr \
+        /chroot/usr/lib/grub/i386-pc/boot_hybrid.img
 
-as option to mkisofs. Otherwise your CD won't be bootable. The
+as option to mkisofs/xorriso. Otherwise your CD won't be bootable. The
 directory live, containing the squashfs compressed filesystem file,
 must be located in the top level directory of the CD.
 

config/media-files/GRMLBASE/boot/grub/grml-theme/bios.txt

@@ -0,0 +1,55 @@
+title-text: ""
+title-color: "#FFF"
+desktop-image: "black.png"
+
++ image {
+  file = "logo.png"
+  left = 4%
+  top = 4%
+}
++ image {
+  file = "bios.png"
+  left = 96%-250
+  top = 4%
+}
++ boot_menu {
+  left = 4%+90
+  width = 92%-180
+  top = 25%
+  height = 55%
+  item_color = #FFF
+  selected_item_color = #000
+  item_spacing = 4
+  item_padding = 10
+  item_height = 20
+  menu_pixmap_style = "menu_*.png"
+  item_pixmap_style = "item_*.png"
+  selected_item_pixmap_style = "sel_*.png"
+  item_icon_space = 0
+  icon_width = 0
+  icon_height = 0
+  scrollbar_frame = "scbf_*.png"
+  scrollbar_thumb = "scbt_*.png"
+  scrollbar_width = 2
+}
++ vbox {
+  left = 4%+100
+  width = 80%
+  top = 90%
+  + label {text = "Press ENTER to boot" color = "white" align = "left" }
+  + label {text = "Press E to edit menu entry" color = "white" align = "left" }
+  + label {text = "Press C to enter the GRUB commandline" color = "white" }
+}
++ progress_bar {
+  id = "__timeout__"
+  top = 90%+26
+  left = 96%-300
+  width = 190
+  height = 16
+  text_color = #000
+  fg_color = "#F47820"
+  bg_color = #FFF
+  border_color = #000
+  #border_color = "#F47820"
+  text = "@TIMEOUT_NOTIFICATION_MIDDLE@"
+}

config/media-files/GRMLBASE/boot/grub/grub.cfg

@@ -19,6 +19,10 @@ if [ -f /boot/grub/addons.cfg ] ; then
     source "/boot/grub/addons.cfg"
 fi
 
+if [ -f /boot/grub/help.cfg ] ; then
+    source "/boot/grub/help.cfg"
+fi
+
 if [ "${grub_platform}" == "efi" ] ; then
 menuentry "UEFI Firmware Settings" {
     fwsetup

config/media-files/GRMLBASE/boot/grub/header.cfg

@@ -4,6 +4,14 @@ set timeout=20
 if loadfont unicode ; then
    insmod png
    set gfxmode=auto
+
+   insmod efi_gop
+   insmod efi_uga
+   insmod vbe
+   # insmod vga  # disabled "vga", its way too slow for graphics mode.
+   insmod video_bochs
+   insmod video_cirrus
+
    insmod gfxterm
    terminal_output gfxterm
 fi
@@ -14,6 +22,8 @@ if [ "${grub_platform}" == "efi" ] ; then
   else
     set grmltheme=uefi
   fi
+else
+  set grmltheme=bios
 fi
 if [ -f /boot/grub/grml-theme/${grmltheme}.txt ] ; then
   set theme=/boot/grub/grml-theme/${grmltheme}.txt

config/media-files/GRMLBASE/boot/grub/help.cfg

@@ -0,0 +1,31 @@
+## Help & Information submenu
+submenu "Help & Information ⇢" {
+  menuentry "Cheatcodes" {
+    set pager=1
+    cat /boot/grub/help/cheatcodes.txt
+    read
+    set pager=0
+  }
+
+  menuentry "Troubleshooting" {
+    set pager=1
+    cat /boot/grub/help/troubleshooting.txt
+    read
+    set pager=0
+  }
+
+  menuentry "Configuration Options" {
+    set pager=1
+    cat /boot/grub/help/config.txt
+    read
+    set pager=0
+  }
+
+  menuentry "Contact & Support" {
+    set pager=1
+    cat /boot/grub/help/contact.txt
+    read
+    set pager=0
+  }
+}
+# EOF

config/media-files/GRMLBASE/boot/grub/help/cheatcodes.txt

@@ -0,0 +1,56 @@
+Grml - Linux for sysadmins and users of texttools
+═════════════════════════════════════════════════
+
+The following options can added to any selected menu item.
+
+blacklist=firewire-core               disable new (Juju) firewire stack
+blacklist=ieee1394                           disable old firewire stack
+blacklist=ipw3945,prism54                     disable specified drivers
+blacklist=module1[,module2]  disable loading of specified module, e.g.:
+blacklist=usbcore                                   disable USB drivers
+debnet        search local partitions for file /etc/network/interfaces,
+          copy /etc/network then to local system and restart networking
+localtime                   assume Hardware Clock (RTC) is in localtime
+tz=Europe/Vienna                         set timezone (default: tz=UTC)
+home=/dev/sda1                   use specified device as home directory
+keyboard=de                                                set keyboard
+lang=[at|ch|da|de|es|fr|it|...|us]              set keyboard + language
+myconfig=/dev/fd0              load configuration from specified device
+noautoconfig               disable searching for device labeled GRMLCFG
+nodhcp                     disable searching for network setup via DHCP
+noeject noprompt      do not eject CD after halt / do not prompt for it
+nofstab / nolabel   disable generating of /etc/fstab / use of fs-labels
+nolvm                          disable search for Logical Volumes (LVM)
+noquick                         disable grml-quickconfig startup script
+noswraid                       disable search for software RAID devices
+noudev                disable startup of udev (disables module loading)
+services=foo1[,foo2] start specified service(s) [/etc/init.d/name foo1]
+ssh=password     set password for user grml + root and start ssh-server
+startx[=windowmanager]                     autostart X.org using grml-x
+swap                                   activate present swap partitions
+testcd                              check CD data integrity and md5sums
+toram / grml2ram      copy the whole CD/media to RAM and run from there
+toram=%SQUASHFS_NAME%      copy only specified squashfs file to RAM and
+                                                         run from there
+
+Additional kernel and initramfs boot options:
+
+acpi={force|off|ht|strict}                         Define ACPI-settings
+apic={quiet(default)|verbose|debug} Set output verbosity whilst booting
+noirqbalance                               Disable kernel irq balancing
+ide?=   config (iomem/irq), tuning (serialize,reset,no{dma,tune,probe})
+initcall_debug  trace initcalls, see where kernel is dying during start
+lapic                    enable the local APIC even if BIOS disabled it
+max_loop=[1-256] Maximum number of loopback devices that can be mounted
+md= / raid=[noautodetect]        RAID options, see Documentation/md.txt
+mem=nn[KMG]                  Force usage of a specific amount of memory
+nfsroot=                        NFS root filesystem for disk-less boxes
+noapic      Ignore all APIC hardware which may be present on the system
+nosmp / maxcpus=1             Tells an SMP kernel to act as a UP kernel
+nosync                        Disables sync negotiation for all devices
+pci={noacpi|biosirq|assign-busses|...}        Set PCI subsystem options
+resume=            Specify the partition device for software suspension
+
+Supported boot options: /run/live/medium/grml/*/grml-cheatcodes.txt
+
+Press ENTER to return to the menu...

config/media-files/GRMLBASE/boot/grub/help/config.txt

@@ -0,0 +1,22 @@
+Grml configuration options
+══════════════════════════
+
+myconfig=/dev/ice   -> search for config.tbz and grml.sh on this device
+extract=/directory  -> extract only this directory of config archive
+netconfig=server.tld/path/to/config.tbz -> download config archive and
+                                           extract it
+noautoconfig        -> do not automount device labeled with GRMLCFG
+file=configname.tbz -> use specified filename as configuration archive
+partconf=/dev/sdx#  -> copy files specified in /etc/grml/partconf from
+                       /dev/sdx# to the Grml system
+
+Usage examples:
+
+grml myconfig=/dev/sda1    -> mount usb device and extract config.tbz
+                            and execute grml.sh if present
+grml netconfig=grml.org/config.tar.gz -> download file and extract it
+grml myconfig=/dev/fd0 file=foobar.tbz -> extract archive from floppy
+grml partconf=/dev/hda2    -> mount partition read-only and get files
+                            specified in  /etc/grml/partconf
+
+Press ENTER to return to the menu...

config/media-files/GRMLBASE/boot/grub/help/contact.txt

@@ -0,0 +1,26 @@
+╔═══════════════════════════════════════════════════╗
+║ Grml - Linux for sysadmins and users of texttools ║
+║                                                   ║
+║              Problems with Grml?                  ║
+╚═══════════════════════════════════════════════════╝
+
+If you can't boot the Grml system, don't despair! The Grml team is ready
+to help you! We are especially interested in hearing about startup
+problems, because in general they don't happen to only one person.
+We've either already heard about your particular problem and can
+dispense a quick fix, or we would like to hear about it and work through
+it with you, and the next user who comes up with the same problem will
+profit from your experience!
+
+Contact us:
+    Web:  https://grml.org/contact/
+    IRC:  #grml on irc.oftc.net
+    Mail: contact (at) grml.org
+    Bugs: https://grml.org/bugs/
+
+See the FAQ for more information:
+    https://grml.org/faq/
+
+    Thank you for helping us to improve Grml!
+
+Press ENTER to return to the menu...

config/media-files/GRMLBASE/boot/grub/help/troubleshooting.txt

@@ -0,0 +1,20 @@
+Troubleshooting options
+═══════════════════════
+
+If you experience lockups or other hardware failures, disable buggy APIC interrupt routing:
+
+    noapic nolapic
+
+Disable ACPI for PCI maps (some HP servers and Via-based machines):
+
+    pci=noacpi
+
+Deactivate SMP-kernel:
+
+    nosmp
+
+Or use only one processor:
+
+    maxcpus=1
+
+Press ENTER to return to the menu...