> Despite using the usually successful methods of booting into another > operating system from C 5.7, I can't get into C 6.0 > > Tried:- > > title C6-0 (2.6.32-71.el6.x86_64) > > rootnoverify (hd0,6) > chainloader +1 > > and > > root (hd0,6) > kernel /boot/vmlinuz-2.6.32-71.el6.x86_64 ro > root=UUID=67c62872-0c69-451c-8412-3c218c0d2cb0 rd_NO_LUKS rd_NO_LVM > rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 > KEYBOARDTYPE=pc KEYTABLE=uk > initrd /boot/initramfs-2.6.32-71.el6.x86_64.img The GRUB error is:- 13 : Invalid or unsupported executable format This error is returned if the kernel image being loaded is not recognized as Multiboot or one of the supported native formats (Linux zImage or bzImage, FreeBSD, or NetBSD). Bewildered. Paul.