grub-mkimage & grub-setup syntax

[k2011gen]

# /usr/local/bin/grub-mkimage --help
Usage: /usr/local/bin/grub-mkimage [OPTION]... [MODULES]

Make a bootable image of GRUB.

  -d, --directory=DIR     use images and modules under DIR 
[default=/usr/local/lib/grub/i386-pc]
  -p, --prefix=DIR        set grub_prefix directory [default=/boot/grub]
  -m, --memdisk=FILE      embed FILE as a memdisk image
  -f, --font=FILE         embed FILE as a boot font
  -c, --config=FILE       embed FILE as boot config
  -o, --output=FILE       output a generated image to FILE [default=stdout]
  -h, --help              display this message and exit
  -V, --version           print version information and exit
  -v, --verbose           print verbose messages


is the modules list just space separated?








# /usr/local/sbin/grub-setup --help
Usage: /usr/local/sbin/grub-setup [OPTION]... DEVICE

Set up images to boot from DEVICE.
DEVICE must be a GRUB device (e.g. `(hd0,1)').

  -b, --boot-image=FILE   use FILE as the boot image [default=boot.img]
  -c, --core-image=FILE   use FILE as the core image [default=core.img]
  -d, --directory=DIR     use GRUB files in the directory DIR 
[default=/boot/grub]
  -m, --device-map=FILE   use FILE as the device map 
[default=/boot/grub/device.map]
  -r, --root-device=DEV   use DEV as the root device [default=guessed]
  -f, --force             install even if problems are detected
  -s, --skip-fs-probe     do not probe for filesystems in DEVICE
  -h, --help              display this message and exit
  -V, --version           print version information and exit
  -v, --verbose           print verbose messages


the -s format of --skip-fs-probe doesn't seem to work

+

When I try to point to a core file using 
   --core-image=/somepath/mycore.img  
grub tries to append the given path to /boot/grub/ eventhough it's given as a 
fully qualified path. In this case it becomes /boot.grub//somepath/mycore.img 

So while mkimage allows me to have the core.img written anywhere grub-setup 
will only accept it under /boot/grub/