#1. grub2启动win8[sda1为win8启动分区,sda2为win8]
set root=hd0,1
insmod ntfs
insmod ntldr
ntldr /bootmgr
#2. grub2 启动 Fedora netinstall 安装镜像
loopback loop /filename.iso
linux (loop)/xxx/vmlinuz inst.repo=hd:UUID=xyzxyzxyz:/filename.iso
initrd (loop)/xxx/initrd.img 注: UUID为镜像所在分区的UUID
#3. grub2 启动 Fedora Live 安装镜像
loopback loop /filename.iso
linux (loop)/isolinux/vmlinuz root=live:CDLABEL=xyzxyzxyz iso-scan/filename=/filename.iso
initrd (loop)/isolinux/initrd.img 注: CDLABEL需用blkid检查或者grub命令行执行ls (loop)检查