下载ubuntu-14.10-desktop-i386.iso 到硬盘分区上
http://releases.ubuntu.com/14.10/ubuntu-14.10-desktop-i386.iso打开终端,sudo chmod +w /boot/grub/grub.cfg
sudo gedit /boot/grub/grub.cfg #xubuntu用的leafpad命令
粘贴下面引导到### END /etc/grub.d/30_os-prober ###的上面
menuentry "ubuntu-14.10-desktop-i386.iso" {
search --no-floppy --set -f /ubuntu-14.10-desktop-i386.iso
loopback loop ($root)/ubuntu-14.10-desktop-i386.iso
linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=/ubuntu-14.10-desktop-i386.iso locale=zh_CN.UTF-8 quiet splash --
initrd (loop)/casper/initrd.lz
}
保存重启电脑,在grub2引导行选择ubuntu-14.10-desktop-i386.iso 就可进入livecd
若想格式化分区安装到硬盘上,先打开终端窗口,键入sudo umount -l /isodevice 按enter键,再运行桌面上的“安装Ubuntu14.10