make a dir called font, copy the font here.
mkdir ~/font
cd ~/font
cp /media/sda/windows/Fonts/simhei.ttf .

copy all the file needed.
sudo apt-get install fontforge
cp /media/textlive/texmf-dist/source/latex/cjk/utils/subfonts/* ~/font/
cp /media/textlive/texmf/fonts/sfd/*.sfd ~/font/
注意上面路径适合我的电脑，你可以进入texlive目录find一下确定具体的合适路径。
---If you are sure your computer is fast enough, please read Stage 2 first!!

Then, make the font. It is a good way to test how fast your computer is:) it
takes me 3 minutes to generate the fonts[Core Duo 2].
time fontforge -script subfonts.pe simhei.ttf hei Unicode.sfd

create a file name makemap like this:
[
for i in *.tfm
do
cat >> hei.map << EOF
${i%.tfm} ${i%.tfm} < ${i%.tfm}.pfb
EOF
done
]

Make map file:
chmod +x makemap
./makemap

create a file name c70hei.fd for CJK package:
[
% This is c70hei.fd for CJK package.
% created by Edward G.J. Lee
% modify by Yue Wang
\ProvidesFile{c70hei.fd}
\DeclareFontFamily{C70}{hei}{\hyphenchar \font\m@ne}
\DeclareFontShape{C70}{hei}{m}{n}{<-> CJK * hei}{}
\DeclareFontShape{C70}{hei}{bx}{n}{<-> CJKb * hei}{\CJKbold}
\endinput
]


create the local directory to save the font
cd ~/.texlive2007
cd texmf-var
mkdir -p fonts/map/dvips/CJK
mkdir -p fonts/tfm/CJK/hei
mkdir -p fonts/type1/CJK/hei
mkdir -p tex/latex/CJK/UTF8
cp ~/font/hei.map fonts/map/dvips/CJK/
cp ~/font/*.tfm fonts/tfm/CJK/hei
cp ~/font/*.pfb fonts/type1/CJK/hei
cp ~/font/c70hei.fd tex/latex/CJK/UTF8

Update the system:
texhash
updmap --enable Map hei.map