grub/docs/autoiso.cfg

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2013-10-27 19:34:24 +00:00
# Sample GRUB script to autodetect operating systems
#
# Copyright (C) 2010 Free Software Foundation, Inc.
#
# GRUB is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# GRUB is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GRUB. If not, see <http://www.gnu.org/licenses/>.
function pathname { regexp -s 2:"$2" '^(\(.*\))?(/.*)$' "$1"; }
function devname { regexp -s "$2" '^(\(.*\)).*$' "$1"; }
function loopback_iso_entry {
realdev="$1"
isopath="$2"
loopdev="$3"
if test -f /boot/grub/loopback.cfg; then
cfgpath=/boot/grub/loopback.cfg
elif test -f /grub/loopback.cfg; then
cfgpath=/grub/loopback.cfg
else
return 1;
fi
echo loopback.cfg $isopath: yes
menuentry "Boot GRUB Loopback Config from ${realdev}${isopath}" "$realdev" "$isopath" "$cfgpath" {
set device="$2"
set iso_path="$3"
set cfg_path="$4"
export iso_path
loopback loopdev_cfg "${device}${iso_path}"
set root=(loopdev_cfg)
configfile $cfg_path
loopback -d loopdev_cfg
}
return 0
}
function grml_iso_entry {
realdev="$1"
isopath="$2"
loopdev="$3"
result=1
for dir in /boot/grml /boot/grmlsmall /boot/grmlmedium; do
if ! test -f ${dir}/linux26 -a -f ${dir}/initrd.gz; then continue; fi
echo grml $isopath: yes
result=0
menuentry "GRML Linux from ${realdev}${isopath}" \
"$realdev" "$isopath" "$dir" {
set device="$2"
set isopath="$3"
set grmldir="$4"
loopback loopdev_grml "${device}${isopath}"
set root=(loopdev_grml)
linux $grmldir/linux26 findiso="$isopath" apm=power-off quiet \
boot=live nomce
initrd $grmldir/initrd.gz
loopback -d loopdev_grml
}
done
return $result
}
function pmagic_iso_entry {
realdev="$1"
isopath="$2"
loopdev="$3"
if ! test -f /pmagic/bzImage -a -f /pmagic/initramfs; then return 1; fi
echo pmagic $isopath: yes
menuentry "Parted Magic from ${realdev}${isopath}" "$realdev" "$isopath" {
set device="$2"
set isopath="$3"
loopback loopdev_pmagic "${device}${isopath}"
set root=(loopdev_pmagic)
linux /pmagic/bzImage iso_filename="$isopath" edd=off noapic \
load_ramdisk=1 prompt_ramdisk=0 rw sleep=10 loglevel=0 \
keymap=$langcode
initrd /pmagic/initramfs
loopback -d loopdev_pmagic
}
return 0
}
function sidux_iso_entry {
realdev="$1"
isopath="$2"
loopdev="$3"
result=1
for kernel in /boot/vmlinuz-*-sidux-*; do
if ! test -f "$kernel"; then continue; fi
regexp -s 1:v1 -s 2:v2 '/boot/vmlinuz-(.*)-sidux-(.*)' "$kernel"
initrd="/boot/initrd.img-$v1-sidux-$v2"
if ! test -f "$initrd"; then continue; fi
result=0
echo sidux $isopath: yes
menuentry "Sidux vmlinux-$v1-sidux-$v2 from ${realdev}${isopath}" "$realdev" "$isopath" "$kernel" "$initrd" {
set device="$2"
set isopath="$3"
set kernel="$4"
set initrd="$5"
loopback loopdev_sidux "${device}${isopath}"
set root=(loopdev_sidux)
linux $kernel fromiso=$isopath boot=fll quiet
initrd $initrd
loopback -d loopdev_sidux
}
done
return $result
}
function slax_iso_entry {
realdev="$1"
isopath="$2"
loopdev="$3"
if ! test -f /boot/vmlinuz -a -f /boot/initrd.gz; then return 1; fi
echo slax $isopath: yes
menuentry "Slax Linux from ${realdev}${isopath}" "$realdev" "$isopath" {
set device="$2"
set isopath="$3"
loopback loopdev_slax "${device}${isopath}"
set root=(loopdev_slax)
linux /boot/vmlinuz from=$isopath ramdisk_size=6666 root=/dev/ram0 rw
initrd /boot/initrd.gz
loopback -d loopdev_slax
}
return 0
}
function tinycore_iso_entry {
realpath="$1"
isopath="$2"
loopdev="$3"
if ! test -f /boot/bzImage -a -f /boot/tinycore.gz; then return 1; fi
echo tinycore $isopath: yes
menuentry "Tinycore Linux from ${realdev}${isopath}" "$realdev" "$isopath" {
set device="$2"
set isopath="$3"
loopback loopdev_tiny "${device}${isopath}"
set root=(loopdev_tiny)
linux /boot/bzImage
initrd /boot/tinycore.gz
loopback -d loopdev_tiny
}
return 0
}
function casper_iso_entry {
realpath="$1"
isopath="$2"
loopdev="$3"
if ! test -f /casper/vmlinuz; then return 1; fi
initrd=
for f in /casper/initrd.*z; do
if ! test -f "$f"; then continue; fi
pathname "$f" initrd
done
if test -z "$initrd"; then return 1; fi
echo casper $isopath: yes
menuentry "Casper based Linux from ${realdev}${isopath}" "$realdev" "$isopath" "$initrd" {
set device="$2"
set isopath="$3"
set initrd="$4"
loopback loopdev_casper "${device}${isopath}"
set root=(loopdev_casper)
linux /casper/vmlinuz boot=casper iso-scan/filename="$isopath" quiet splash noprompt keyb="$langcode" \
debian-installer/language="$langcode" console-setup/layoutcode?="$langcode" --
initrd $initrd
loopback -d loopdev_casper
}
return 0
}
function scan_isos {
isodirs="$1"
for dev in (*); do
for dir in $isodirs; do
for file in ${dev}${dir}/*.iso ${dev}${dir}/*.ISO; do
if ! test -f "$file"; then continue; fi
pathname $file isopath
if test -z "$dev" -o -z "$isopath"; then continue; fi
if ! loopback loopdev_scan "$file"; then continue; fi
saved_root=$root
set root=(loopdev_scan)
if loopback_iso_entry $dev $isopath (loopdev_scan); then true;
elif grml_iso_entry $dev $isopath (loopdev_scan); then true;
elif pmagic_iso_entry $dev $isopath (loopdev_scan); then true;
elif sidux_iso_entry $dev $isopath (loopdev_scan); then true;
elif slax_iso_entry $dev $isopath (loopdev_scan); then true;
elif tinycore_iso_entry $dev $isopath (loopdev_scan); then true;
elif casper_iso_entry $dev $isopath (loopdev_scan); then true;
else true; fi
set root=$saved_root
loopback -d loopdev_scan
done
done
done
return 0
}
# XXX Remove later
insmod serial
serial
terminal_output --append serial
# terminal_input --append serial
langcode="$lang"
insmod regexp
scan_isos /iso /boot/iso