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Linux 起動用initスクリプトver.8

Linux 起動用initスクリプトver.7では、CentOSなどELFカーネルを使っているものはzzzでshに入らない限り起動できませんでした。自動判別して起動できるように修正しました。

使い方は、Linux 起動用initスクリプトver.6と同じです。

置き換えるべきinitの内容は以下の横線で囲まれた範囲です。「#!/bin/sh」が1行目になるようにしてください。


#!/bin/sh

[ -d /dev ] || mkdir -m 0755 /dev
[ -d /root ] || mkdir -m 0700 /root
[ -d /sys ] || mkdir /sys
[ -d /proc ] || mkdir /proc
[ -d /tmp ] || mkdir /tmp
mkdir -p /var/lock
mount -t sysfs -o nodev,noexec,nosuid none /sys
mount -t proc -o nodev,noexec,nosuid none /proc

grep -q '\<quiet\>' /proc/cmdline || echo "Loading, please wait..."

# Note that this only becomes /dev on the real filesystem if udev's scripts
# are used; which they will be, but it's worth pointing out
if ! mount -t devtmpfs -o mode=0755 none /dev; then
mount -t tmpfs -o mode=0755 none /dev
mknod -m 0600 /dev/console c 5 1
mknod /dev/null c 1 3
fi
mkdir /dev/pts
mount -t devpts -o noexec,nosuid,gid=5,mode=0620 none /dev/pts || true
> /dev/.initramfs-tools
mkdir /dev/.initramfs

# Export the dpkg architecture
export DPKG_ARCH=
. /conf/arch.conf

# Set modprobe env
export MODPROBE_OPTIONS="-qb"

# Export relevant variables
export ROOT=
export ROOTDELAY=
export ROOTFLAGS=
export ROOTFSTYPE=
export IPOPTS=
export HWADDR=
export break=
export init=/sbin/init
export quiet=n
export readonly=y
export rootmnt=/root
export debug=
export panic=
export blacklist=
export resume_offset=

# Bring in the main config
. /conf/initramfs.conf
. /scripts/functions

if [ -z "${noresume}" ]; then
export resume=${RESUME}
else
export noresume
fi

[ -n "${netconsole}" ] && modprobe netconsole netconsole=${netconsole}

# export BOOT variable value for compcache,
# so we know if we run from casper
export BOOT

# Don't do log messages here to avoid confusing usplash
run_scripts /scripts/init-top

log_begin_msg "Loading essential drivers..."
load_modules
log_end_msg

[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/init-premount"
run_scripts /scripts/init-premount
[ "$quiet" != "y" ] && log_end_msg

[ -d /mnt ] || mkdir -m 0755 /mnt
echo ==========================
echo "Please wait until all the device you want to boot is recognized and then push ENTER key."
echo ==========================
read a
deviceslist=$(blkid|cut -d: -f1)
okdeviceslist=""
for a in $deviceslist
do
umount -l /mnt 2>/dev/null
mount -t $(blkid $a|sed -e "s/.*TYPE=\"//"|sed -e "s/\".*//") $a /mnt 2>/dev/null || continue
okdeviceslist="${okdeviceslist} $a"
umount -l /mnt 2>/dev/null
done
i=0
echo ==========================
echo "The device file names and information of partitions will be recognized and are shown below."
echo
for a in ${okdeviceslist}
do
echo $i":"$(blkid|grep "${a}:")
i=$(expr $i + 1)
done
echo
echo "You can look upper by pushing SHIFT and PageUp keys at the same time."
echo "Please type the number of the device file name of the root partition of Ubuntu you want to boot."
panipani () {
echo "DAMESSU! I will try to make you use terminal"
PS1='(kiyoChelp) ' /bin/sh -i </dev/console >/dev/console 2>&1
echo "Please reboot by pressing CTRL+ALT+DEL or ATL+SysRq+R,S,E,I,U,B"
exec run-init ${rootmnt} ${init} "$@" <${rootmnt}/dev/console >${rootmnt}/dev/console 2>&1
panic "Could not execute run-init."
}
readloop () {
while [ a = a ]
do
read a
if [ $a -ge 0 ]
then
if [ $? = 1 ]
then
echo "Please type number"
continue
elif [ $a -lt "$(echo $*|tr ' ' '\n'|wc -l)" ]
then
break
else
echo "Please type number smaller than $(echo $*|tr ' ' '\n'|wc -l)"
continue
fi
echo "Please type number larger than 0 or 0"
fi
done
}
checkelf () {
if [ "a$(file $1|grep -i ELF)" = "a" ]
then
elfarg=""
else
elfarg=" --args-linux "
fi
}
readloop "${okdeviceslist}"
device=$(echo ${okdeviceslist}|cut -d" " -f $(expr $a + 1))
echo "You selected $a:$device"
mount -t $(blkid $device|sed -e "s/.*TYPE=\"//"|sed -e "s/\".*//") $device /mnt
echo "If you want to search Grub settings, please type y"
echo "If you want to get into busybox, please type zzz"
read aa
if [ -n "$(echo $aa|grep y)" ]
then
fakemore () {
step=$1
num=1
ln=$(wc -l $2 |sed "s/^[^0-9]*//"|sed "s/[^0-9]*$//")
while [ $num -lt $ln ]
do
sed -n "$num,$(expr $num + $step) p" $2
read -p "## Please enter q to quit displaying: " b
if [ a"$b" = "aq" ]
then
break
fi
num=$(expr $num + $step + 1)
done
return
}
settingchange () {
while [ a = a ]
do
echo "kernel is: $kernel"
if [ -z "$(echo $initrd|tr -d " ")" ]
then
echo "initrd line is not set."
else
echo "initrd is: $initrd"
fi
echo "kernel option is: $kernelopts"
read -p "Do you want to boot with the above settings? (nothing:yes, c:edit settings, any other: quit selecting this menuentry) : " q
if [ "a$q" = "a" -o "a$q" = "ay" -o "a$q" = "ayes" ]
then
checkelf /mnt/$kernel
if [ "a$initrd" = "a" ]
then
kexec -l /mnt${kernel} $elfarg --append="${kernelopts}"
else
kexec -l /mnt${kernel} $elfarg --initrd=/mnt${initrd} --append="${kernelopts}"
fi
kexec -e
sleep 10
panipani
elif [ "a$q" = "ac" ]
then
read -p "Type the kernel file in full path (nothing:unchanged): " q
if [ "a$q" != "a" ]; then kernel=$q;fi
read -p "Type the initrd file in full path (nothing:unchanged. to delete, type \"d\"): " q
if [ "a$q" = "ad" ]
then
initrd=""
elif [ "a$q" != "a" ]
then
initrd=$q
fi
read -p "Type the kernel option (nothing:unchanged): " q
if [ "a$q" != "a" ]; then kernelopts=$q;fi
else
break
fi
done
}
if [ -e /mnt/boot/grub/grub.cfg -o -e /mnt/grub/grub.cfg ]
then
[ -e /mnt/boot/grub/grub.cfg ]&& c="/boot"||c=""
echo "$c/grub/grub.cfg (GRUB2 settings file)is found."
while [ a = a ]
do
echo -n "? 1) show $c/grub/grub.cfg, 2) select menuentry, 3)end this function : "
read a
if [ "$a" = 1 ]
then
fakemore 10 /mnt$c/grub/grub.cfg
elif [ "$a" = 2 ]
then
grep menuentry /mnt$c/grub/grub.cfg | sed -e "s/^[^A-z0-9#]*menuentry *//" > /tmp/menuentries
i=0
num=$(wc -l /tmp/menuentries|tr -s " "|sed -e "s/ *//"|cut -d" " -f1)
while [ $i -lt $num ]
do
i=$(expr $i + 1)
echo $(expr $i - 1):$(sed -n -e "${i}p" /tmp/menuentries)
done
echo "You can look upper by pushing SHIFT and PageUp keys at the same time."
echo "Please type the number of the menu you want to look inside"
readloop "$(cat /tmp/menuentries|tr -d ' ')"
echo "=========================================="
echo "The contents is:"
echo
num=$(grep -A15 -e "$(sed -n -e $(expr $a + 1)p /tmp/menuentries)$" /mnt$c/grub/grub.cfg|grep -n ^}|sed -n -e 1p|cut -d: -f1)
if [ -n "$num" ]
then
num=$(expr $num - 1)
else
num=15
fi
grep -A $num -e "$(sed -n -e $(expr $a + 1)p /tmp/menuentries)$" /mnt$c/grub/grub.cfg > /tmp/grubcfg1
cat /tmp/grubcfg1
kernelline=$(grep ^[^A-z0-9#]*linux /tmp/grubcfg1|sed -n -e 1p)
initrdline=$(grep ^[^A-z0-9#]*initrd /tmp/grubcfg1|sed -n -e 1p)
kernel=$(echo $kernelline|sed -e "s/^[^A-z0-9#]*linux *//"|cut -f1 -d" ")
kernelopts=$(echo $kernelline|sed -e "s/^[^A-z0-9#]*linux *//"|sed -e "s/$(echo $kernel|sed -e 's/\//\\\//g')//"|tr -s " ")
initrd=$(echo $initrdline|sed -e "s/^[^A-z0-9#]*initrd *//"|cut -f1 -d" ")
settingchange
elif [ "$a" = 3 ]
then
break
fi
done
fi
if [ -e /mnt/boot/grub/menu.lst -o -e /mnt/grub/menu.lst ]
then
[ -e /mnt/boot/grub/menu.lst ]&& c="/boot"||c=""
echo "GRUB legacy settings file $c/grub/menu.lst is found."
while [ a = a ]
do
echo -n "? 1) show $c/grub/menu.lst, 2) select title, 3)end this function : "
read a
if [ "$a" = 1 ]
then
fakemore 10 /mnt$c/grub/menu.lst
elif [ "$a" = 2 ]
then
grep title /mnt$c/grub/menu.lst | sed -e "s/^[^A-z0-9#]*title *//" > /tmp/menuentries
i=0
num=$(wc -l /tmp/menuentries|tr -s " "|sed -e "s/^ *//"|cut -d" " -f1)
while [ $i -lt $num ]
do
i=$(expr $i + 1)
echo $(expr $i - 1):$(sed -n -e "${i}p" /tmp/menuentries)
done
echo "You can look upper by pushing SHIFT and PageUp keys at the same time."
echo "Please type the number of the menu you want to look inside"
readloop "$(cat /tmp/menuentries|tr -d ' ')"
echo "=========================================="
echo "The contents is:"
echo
num=$(grep -A15 -e "$(sed -n -e $(expr $a + 1)p /tmp/menuentries)$" /mnt$c/grub/menu.lst|grep -n ^[^A-z0-9#]*title|sed -n -e "2p"|cut -d: -f1)
if [ -n "$num" ]
then
num=$(expr $num - 2)
else
num=15
fi
grep -A $num -e "^[^A-z0-9#]*title *$(sed -n -e $(expr $a + 1)p /tmp/menuentries)$" /mnt$c/grub/menu.lst > /tmp/grubcfg1
cat /tmp/grubcfg1
kernelline=$(grep ^[^A-z0-9#]*kernel /tmp/grubcfg1|sed -n -e 1p)
initrdline=$(grep ^[^A-z0-9#]*initrd /tmp/grubcfg1|sed -n -e 1p)
kernel=$(echo $kernelline|sed -e "s/^[^A-z0-9#]*kernel *//"|cut -f1 -d" ")
kernelopts=$(echo $kernelline|sed -e "s/^[^A-z0-9#]*kernel *//"|sed -e "s/$(echo $kernel|sed -e 's/\//\\\//g')//"|tr -s " ")
initrd=$(echo $initrdline|sed -e "s/^[^A-z0-9#]*initrd *//"|cut -f1 -d" ")
settingchange
elif [ "$a" = 3 ]
then
break
fi
done
fi
if [ -e /mnt/menu.lst ]
then
echo "GRUB legacy settings file /menu.lst is found."
while [ a = a ]
do
echo -n "? 1) show /menu.lst, 2) select title, 3)end this function : "
read a
if [ "$a" = 1 ]
then
fakemore 10 /mnt/menu.lst
elif [ "$a" = 2 ]
then
grep title /mnt/menu.lst | sed -e "s/^[^A-z0-9#]*title *//" > /tmp/menuentries
i=0
num=$(wc -l /tmp/menuentries|tr -s " "|sed -e "s/^ *//"|cut -d" " -f1)
while [ $i -lt $num ]
do
i=$(expr $i + 1)
echo $(expr $i - 1):$(sed -n -e "${i}p" /tmp/menuentries)
done
echo "You can look upper by pushing SHIFT and PageUp keys at the same time."
echo "Please type the number of the menu you want to look inside"
readloop "$(cat /tmp/menuentries|tr -d ' ')"
echo "=========================================="
echo "The contents is:"
echo
num=$(grep -A15 -e "$(sed -n -e $(expr $a + 1)p /tmp/menuentries)$" /mnt/menu.lst|grep -n ^[^A-z0-9#]*title|sed -n -e 2p|cut -d: -f1)
if [ -n "$num" ]
then
num=$(expr $num - 2)
else
num=15
fi
grep -A $num -e "^[^A-z0-9#]*title *$(sed -n -e $(expr $a + 1)p /tmp/menuentries)$" /mnt/menu.lst > /tmp/grubcfg1
cat /tmp/grubcfg1
kernelline=$(grep ^[^A-z0-9#]*kernel /tmp/grubcfg1|sed -n -e 1p)
initrdline=$(grep ^[^A-z0-9#]*initrd /tmp/grubcfg1|sed -n -e 1p)
kernel=$(echo $kernelline|sed -e "s/^[^A-z0-9#]*kernel *//"|cut -f1 -d" ")
kernelopts=$(echo $kernelline|sed -e "s/^[^A-z0-9#]*kernel *//"|sed -e "s/$(echo $kernel|sed -e 's/\//\\\//g')//"|tr -s " ")
initrd=$(echo $initrdline|sed -e "s/^[^A-z0-9#]*initrd *//"|cut -f1 -d" ")
settingchange
elif [ "$a" = 3 ]
then
break
fi
done
fi
if [ -e /mnt/boot/syslinux/syslinux.cfg -o -e /mnt/syslinux/syslinux.cfg -o -e /mnt/syslinux.cfg ]
then
[ -e /mnt/boot/syslinux/syslinux.cfg ]&& c="/boot/syslinux"
[ -e /mnt/syslinux/syslinux.cfg ]&& c="/syslinux"
[ -e /mnt/syslinux.cfg ]&& c="/"
echo "SYSLINUX settings file $c/syslinux.cfg is found."
syslinuxfiles="/mnt$c/syslinux.cfg"
addsyslinuxconf () {
aaa=$(grep -i -e "include" $1|sed -e "s/include//")
if [ -z "$aaa" ];then return;fi
for bb in $aaa
do
if [ "a$(file /mnt$c/$bb|grep -i ASCII|grep -i text)" != "a" ]
then
syslinuxfiles="$syslinuxfiles /mnt$c/$bb"
addsyslinuxconf /mnt$c/$bb
fi
done
}
addsyslinuxconf /mnt$c/syslinux.cfg
echo "$syslinuxfiles is/are found as configuration file(s)."
while [ a = a ]
do
echo -n "? 1) show syslinux configuration file(s), 2) select menuentry, 3)end this function : "
read a
if [ "$a" = 1 ]
then
for a in $syslinuxfiles
do
fakemore 10 $a
done
elif [ "$a" = 2 ]
then
grep -H -i ^[^A-z0-9#]*label\ * $syslinuxfiles > /tmp/menuentries
i=0
num=$(wc -l /tmp/menuentries|tr -s " "|sed -e "s/^ *//"|cut -d" " -f1)
while [ $i -lt $num ]
do
i=$(expr $i + 1)
echo $(expr $i - 1):$(sed -n -e "${i}p" /tmp/menuentries)
done
echo "You can look upper by pushing SHIFT and PageUp keys at the same time."
echo "Please type the number of the menu you want to look inside"
readloop "$(cat /tmp/menuentries|tr -d ' ')"
echo "=========================================="
echo "The contents is:"
echo
num=$(grep -A15 -e "$(sed -n -e $(expr $a + 1)p /tmp/menuentries|cut -d: -f2)$" "$(sed -n -e $(expr $a + 1)p /tmp/menuentries|cut -d: -f1)"|grep -i -n ^[^A-z0-9#]*label\ *|sed -n -e 2p|cut -d: -f1)
if [ -n "$num" ]
then
num=$(expr $num - 2)
else
num=15
fi
grep -i -A $num -e "^[^A-z0-9#]*$(sed -n -e $(expr $a + 1)p /tmp/menuentries|cut -d: -f2)$" "$(sed -n -e $(expr $a + 1)p /tmp/menuentries|cut -d: -f1)" > /tmp/grubcfg1
# the above line has problem when label line contains ":" or file name contains ":".
cat /tmp/grubcfg1
kernelline=$(grep -i ^[^A-z0-9#]*kernel /tmp/grubcfg1|sed -n -e 1p)
# linux or LINUX line should be taken into account.
initrdline=$(grep -i ^[^A-z0-9#]*initrd /tmp/grubcfg1|sed -n -e 1p)
kernel=$(echo $kernelline|sed -e "s/^[^A-z0-9#]*kernel *//"|cut -f1 -d" ")
kernelopts=$(grep -i ^[^A-z0-9#]*append /tmp/grubcfg1|sed -e "s/^[^A-z0-9#]*append *//"|sed -e "s/^[^A-z0-9#]*APPEND *//"|tr -s " ")
if [ "a$(echo $kernelopts|grep -i initrd=)" = "a" ]
then
initrd=$(echo $initrdline|sed -e "s/^[^A-z0-9#]*initrd *//"|cut -f1 -d" ")
else
initrd=$(echo $kernelopts|sed -e "s/.*initrd=//"|cut -d" " -f1)
fi
settingchange
elif [ "$a" = 3 ]
then
break
fi
done
fi
if [ -f /mnt/ubuntu/disks/root.disk ]
then
echo "/ubuntu/disks/root.disk is found. Maybe this is WUBI file."
device=$(grep " /mnt " /proc/mounts|cut -d" " -f1)
mkdir /mntroot
umount $device
mount -t $(blkid $device|sed -e "s/.*TYPE=\"//"|sed -e "s/\".*//") $device /mntroot
mount -o loop /mntroot/ubuntu/disks/root.disk /mnt
if [ $? = 0 ]
then
kernel="/vmlinuz"
initrd="/initrd.img"
kernelopts="root=UUID=$(blkid $device|sed -e 's/^.*UUID=\"//'|sed -e 's/\".*//') loop=/ubuntu/disks/root.disk ro"
settingchange
else
echo "$device /ubuntu/disks/root.disk is failed to be mounted."
fi
fi
fi
if [ -n "$(echo $aa|grep zzz)" ]
then
PS1='(kiyoChelp) ' /bin/sh -i </dev/console >/dev/console 2>&1
fi
echo "======================================"
echo "The following kernels seems to be available."
kernels1=$(ls /mnt/boot/ -1|grep vmlinuz)
kernels=""
i=0
for a in $kernels1
do
if [ -n "$(ls -1 /mnt/boot/initrd*$(echo $a|cut -c9-))*" ]
then
echo $i":"$(echo $kernels1|cut -d" " -f $(expr $i + 1))
i=$(expr $i + 1)
kernels="$kernels $a"
fi
done
echo "You can look upper by pushing SHIFT and PageUp keys at the same time."
echo "Please type the number of the kernel you want to boot."
readloop "${kernels}"
kernel=$(echo ${kernels}|cut -d" " -f $(expr $a + 1))
echo "You selected $a:$kernel"
echo "The following option is suggested to pass to the kernel:"
echo "root=UUID=$(blkid|grep "$device:"|sed -e "s/^.*UUID=\"//"|sed -e "s/\".*//") ro"
echo ""
echo "Please enter commandline parameter to pass to kernel."
echo "If you accept the suggested option, please type nothing."
read a
checkelf /mnt/boot/$kernel
if [ -n "$a" ]
then
kexec -l /mnt/boot/$kernel $elfarg --append="$a" --initrd=$(ls /mnt/boot/initrd*$(echo $kernel|cut -c9-)*|tail -n1)
kexec -e
else
kexec -l /mnt/boot/$kernel $elfarg --append="root=UUID=$(blkid|grep "$device:"|sed -e "s/^.*UUID=\"//"|sed -e "s/\".*//") ro" --initrd=$(ls /mnt/boot/initrd*$(echo $kernel|cut -c9-)*|tail -n1)
kexec -e
fi
umount -l /mnt
panipani


今までに、以下のディストリを起動できることを確認しています。
デフォルトってのは数字でパーティションを選んで、そのままENTERで、カーネルを数字で選んでそのままENTERの場合です。

Ubuntu10.04
 内蔵HDDのパーティションへのインストール
   ーデフォルト&yによるgrub.cfg
 USB-HDDのパーティションへのインストール
  (BIOSがUSB-HDDからの起動に対応していない場合もOK)
   ーyによるgrub.cfg
 Wubiーyによる
 USBスタートアップディスクの作成により作成されたもの
   ーyによるsyslinuxでliveを選択

Fedora13
 内蔵HDDのパーティションへのインストール
   ーyによるmenu.lst

OpenSUSE11.2
 内蔵HDDのパーティションへのインストール
   ーyによるmenu.lst

DebianLenny
 内蔵HDDのパーティションへのインストール
   ーデフォルト&yによるmenu.lst

DebianSid
 内蔵HDDのパーティションへのインストール
   ーデフォルト&yによるmenu.lst

Mandriva2010
 内蔵HDDのパーティションへのインストール
   ーyによるmenu.lst
   (ただし、cで編集して(hd*,*)ってのを消す必要があります。)

LinuxMint9
 内蔵HDDのパーティションへのインストール
   ーデフォルト&yによるgrub.cfg

PCLinuxOS-gnome-2010.07
 内蔵HDDのパーティションへのインストール
   ーyによるmenu.lst
   (ただし、cで編集して(hd*,*)ってのを消す必要があります。)

Slackware13.1
 内蔵HDDのパーティションへのインストール
   ーzzzで
   kexec -l /mnt/boot/vmlinuz --append="root=/dev/デバイスファイル名"
   kexec -e

CentOS
内蔵DDのパーティションへのインストール
   ーyによるmenu.lst(grub.confへのシンボリックリンク)

PuppyLinux4.31日本語版
 内蔵HDDのパーティションへのFullインストール
   ーyによるmenu.lst
 内蔵HDDのパーティションへのFrugalInstall
   ーyによるmenu.lst

VineLinux5.1
 内蔵HDDのパーティションへのインストール
   ーyによるmenu.lst

xpud-0.9.2
 内蔵HDDのパーティションへのインストール
   ーzzzで例えば
   kexec -l /mnt/xpud-0.9.2-image --append="noisapnp lang-en"
   とか

TinyCoreLinux
 内蔵HDDへのインストール
   ーzzzで例えば
   kexec -l /mnt/boot/bzImage --initrd=/mnt/boot/tinycore.gz --append="max_loop=256"
   とか

====================
注意事項:
・最初にパーティションを選択しますが、選択したパーティションは/mntにマウントされます。

・zzzでmountやkexecを利用できます。

・zzzでは最後にkexec -eを実行することで実際に起動が始まります。

・grub4dosのgrub.exeを起動できます。
 /grub.exeが含まれるパーティションを選んで、zzzで
 kexec -l /mnt/grub.exe
 でOK。あ、実際の起動にはもちろん、
 kexec -e
 さらに、
 kexec -l /mnt/grub.exe --append="--config-file='root (hd0,0);chainloader +1;boot'"
 なんてことが可能な場合もあります。
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テーマ : Linux
ジャンル : コンピュータ

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since 2011/9/25
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