在Ubuntu下，制作Fedora 15 DVD Live USB 离线安装
sudo add-apt-repository ppa:gezakovacs
sudo apt-get update
sudo apt-get install extlinux
sudo apt-get install unetbootin
sudo unetbootin
Fedora与Ubuntu双启动菜单
1、先安装Ubuntu，后安装Fedora（实测成功）
假设：Ubuntu安装在/dev/sda1，Fedora安装在/dev/sda2
结果：Fedora安装后，Grub启动菜单中只有Fedora
在Fedora下，需要把Ubuntu添加进Grub
步骤：挂载Ubuntu分区，打开/media/xxxx-guid-xxxx/boot/grub/grub.cfg，搜索vmlinuz
sudo vi /boot/grub/menu.lst
改成这样：
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You do not have a /boot partition. This means that
# all kernel and initrd paths are relative to /, eg.
# root (hd0,1)
# kernel /boot/vmlinuz-version ro root=/dev/sda2
# initrd /boot/initrd-[generic-]version.img
#boot=/dev/sda
default=0
timeout=3
splashimage=(hd0,1)/boot/grub/splash.xpm.gz
#hiddenmenu
title Fedora (2.6.38.6-27.fc15.x86_64)
root (hd0,1)
kernel /boot/vmlinuz-2.6.38.6-27.fc15.x86_64 ro root=UUID=421f4c13-4ec1-4c92-8c75-f7178eef828f rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=zh_CN.UTF-8 KEYTABLE=us rhgb quiet
initrd /boot/initramfs-2.6.38.6-27.fc15.x86_64.img
title Ubuntu 11.04 x64
root (hd0,0)
kernel /boot/vmlinuz-2.6.38-8-generic root=UUID=5e1708fa-915f-4b3d-9fa6-1aef9bb71b2e ro quiet splash vt.handoff=7
initrd /boot/initrd.img-2.6.38-8-generic
