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GRUB legacy(0.97)からGRUB2へのアップグレードの場合

Ubuntu 9.04から9.10にアップグレードしたもので、GRUBの状態でした。
grub-pcをインストールすると、
GRUBからチェインロードするか聞かれる。OKすると、/boot/grub/menu.lstには

title Chainload into GRUB 2
uuid (パーティションのUUID)
kernel /boot/grub/core.img

title
root

title When you have verified GRUB 2 works, you can use this command to
root

title complete the upgrade: upgrade-from-grub-legacy
root

title
root

以上までだけが加わったようだ。

/usr/lib/grub/grub-mkconfig_lib
の内容は以下:

# Helper library for grub-mkconfig
# Copyright (C) 2007,2008,2009 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 .

transform="s,x,x," # sedでxをxに変更するための文字列をセット。何でこんなことを?

prefix=/usr
exec_prefix=${prefix}
datarootdir=${prefix}/share
datadir=${datarootdir}
sbindir=${exec_prefix}/sbin
pkgdatadir=${datadir}/`echo grub | sed "${transform}"`

grub_probe=${sbindir}/`echo grub-probe | sed ${transform}`

grub_warn ()
{
echo "Warning: $@" >&2 # 入力されたパラメータのすべての先頭に"Warning: "だけを付けて表示するためだけの関数
}

make_system_path_relative_to_its_root ()
{
path=$1
# abort if file doesn't exist
if test -e $path ; then : ;else
return 1 # 1つ目のパラメータがファイルまたはディレクトリとして存在しない場合にはこの関数を終了。
fi

# canonicalize
if path=`readlink -f $path` ; then : ; else
return 1
fi

# if not a directory, climb up to the directory containing it
if test -d $path ; then
dir=$path
else
dir=`echo $path | sed -e "s,/[^/]*$,,g"`
fi

num=`stat -c %d $dir`

# this loop sets $dir to the root directory of the filesystem we're inspecting
while : ; do
parent=`readlink -f $dir/..`
if [ "x`stat -c %d $parent`" = "x$num" ] ; then : ; else
# $parent is another filesystem; we found it.
break
fi
if [ "x$dir" = "x/" ] ; then
# / is our root.
break
fi
dir=$parent
done

# This function never prints trailing slashes (so that its output can be
# appended a slash unconditionally). Each slash in $dir is considered a
# preceding slash, and therefore the root directory is an empty string.
if [ "$dir" = "/" ] ; then
dir=""
fi

# XXX: This fails if $dir contains ','.
path=`echo "$path" | sed -e "s,^$dir,,g"` || return 1

case "`uname 2>/dev/null`" in
CYGWIN*)
# Cygwin: Check if regular or emulated mount.
if [ -z "$dir" ] || [ "`stat -c %D "$dir/.."`" != 620000 ] ; then
# Reached some mount point not below /cygdrive.
# GRUB does not know Cygwin's emulated mounts,
# convert to Win32 path and remove drive letter.
path=`cygpath -m "$path" | sed -n 's,^[A-Za-z]:,,p'`
test ! -z "$path" || return 1
fi ;;
esac

echo "$path"
}

is_path_readable_by_grub ()
{
path=$1

# abort if path doesn't exist
if test -e $path ; then : ;else
return 1
fi

# abort if file is in a filesystem we can't read
if ${grub_probe} -t fs $path > /dev/null 2>&1 ; then : ; else
return 1
fi

return 0
}

convert_system_path_to_grub_path ()
{
path=$1

grub_warn "convert_system_path_to_grub_path() is deprecated. Use prepare_grub_to_access_device() instead."

# abort if GRUB can't access the path
if is_path_readable_by_grub ${path} ; then : ; else
return 1
fi

if drive=`${grub_probe} -t drive $path` ; then : ; else
return 1
fi

if relative_path=`make_system_path_relative_to_its_root $path` ; then : ; else
return 1
fi

echo ${drive}${relative_path}
}

save_default_entry ()
{
if [ "x${GRUB_DEFAULT}" = "xsaved" ] ; then
echo 'saved_entry=${chosen}'
echo 'save_env saved_entry'
fi
}

prepare_grub_to_access_device ()
{
device=$1

loop_file=
case ${device} in
/dev/loop/*|/dev/loop[0-9])
loop_file=`losetup ${device} | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/"`
case $loop_file in
/dev/*) ;;
*)
loop_device=${device}
device=`${grub_probe} --target=device "${loop_file}"`
;;
esac
;;
esac

# Abstraction modules aren't auto-loaded.
abstraction="`${grub_probe} --device ${device} --target=abstraction`"
for module in ${abstraction} ; do
echo "insmod ${module}"
done

fs="`${grub_probe} --device ${device} --target=fs`"
for module in ${fs} ; do
echo "insmod ${module}"
done

# If there's a filesystem UUID that GRUB is capable of identifying, use it;
# otherwise set root as per value in device.map.
echo "set root=`${grub_probe} --device ${device} --target=drive`"
if fs_uuid="`${grub_probe} --device ${device} --target=fs_uuid 2> /dev/null`" ; then
echo "search --no-floppy --fs-uuid --set ${fs_uuid}"
fi

if [ "x${loop_file}" != x ]; then
loop_mountpoint="$(awk '"'${loop_file}'" ~ "^"$2 && $2 != "/" { print $2 }' /proc/mounts | tail -n1)"
if [ "x${loop_mountpoint}" != x ]; then
echo "loopback loop0 ${loop_file#$loop_mountpoint}"
echo "set root=(loop0)"
fi
fi
}

grub_file_is_not_garbage ()
{
if test -f "$1" ; then
case "$1" in
*.dpkg-*) return 1 ;; # debian dpkg
esac
else
return 1
fi
return 0
}

version_test_numeric ()
{
local a=$1
local cmp=$2
local b=$3
if [ "$a" = "$b" ] ; then
case $cmp in
ge|eq|le) return 0 ;;
gt|lt) return 1 ;;
esac
fi
if [ "$cmp" = "lt" ] ; then
c=$a
a=$b
b=$c
fi
if (echo $a ; echo $b) | sort -n | head -n 1 | grep -qx $b ; then
return 0
else
return 1
fi
}

version_test_gt ()
{
local a=`echo $1 | sed -e "s/[^-]*-//;s/[._-]\(pre\|rc\|test\|git\|old\)/~\1/g"`
local b=`echo $2 | sed -e "s/[^-]*-//;s/[._-]\(pre\|rc\|test\|git\|old\)/~\1/g"`
local cmp=gt
if [ "x$b" = "x" ] ; then
return 0
fi
case $a:$b in
*.old:*.old) ;;
*.old:*) a=`echo -n $a | sed -e s/\.old$//` ; cmp=gt ;;
*:*.old) b=`echo -n $b | sed -e s/\.old$//` ; cmp=ge ;;
esac
dpkg --compare-versions "$a" $cmp "$b"
return $?
}

version_find_latest ()
{
local a=""
for i in $@ ; do
if version_test_gt "$i" "$a" ; then
a="$i"
fi
done
echo "$a"
}

以上。

テーマ : Linux
ジャンル : コンピュータ

プロフィール

kiyoshi

Author:kiyoshi
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since 2011/9/25
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上記広告は1ヶ月以上更新のないブログに表示されています。新しい記事を書くことで広告を消せます。