2008-06-18 Robert Millan <rmh@aybabtu.com>

* util/i386/pc/grub-install.in: If the drive is LVM or RAID, prepend
        it in prefix.

        * util/i386/pc/grub-setup.c (main): Don't handle prefix at all.  Set
        `must_embed' to 1 when root_dev is a RAID device.  When dest_dev is
        a RAID device, run setup() for all members independently on whether
        LVM abstraction is being used.
        (setup): Don't handle prefix at all; let grub-mkimage take care of it.
        If grub-mkimage has set `*install_dos_part == -2', don't override this
        value.
        Perform *install_dos_part adjustments independently on whether
        we're embedding or not.
        Clarify error message when image is too big for embedding.
        Remove duplicate *install_dos_part stanza.

util/i386/pc/grub-install.in

@@ -231,10 +231,18 @@ partmap_module=`$grub_probe --target=partmap --device ${grub_device} 2> /dev/nul
 # Device abstraction module, if any (lvm, raid).
 devabstraction_module=`$grub_probe --target=abstraction --device ${grub_device}`
 
+if [ "x${devabstraction_module}" = "x" ] ; then
+    prefix_drive=
+else
+    prefix_drive=`$grub_probe --target=drive --device ${grub_device}`
+fi
+
 # The order in this list is critical.  Be careful when modifiing it.
 modules="$modules $fs_module $partmap_module biosdisk $devabstraction_module"
 
-$grub_mkimage --output=${grubdir}/core.img --prefix=`make_system_path_relative_to_its_root ${grubdir}`/ $modules || exit 1
+$grub_mkimage --output=${grubdir}/core.img \
+    --prefix=${prefix_drive}`make_system_path_relative_to_its_root ${grubdir}`/ \
+    $modules || exit 1
 
 # Now perform the installation.
 $grub_setup --directory=${grubdir} --device-map=${device_map} \