--- a/util/grub-setup.c
+++ b/util/grub-setup.c
-@@ -141,12 +141,11 @@ write_rootdev (char *core_img, grub_devi
- static void
- setup (const char *dir,
- const char *boot_file, const char *core_file,
-- const char *dest, int force,
-+ const char *root, const char *dest, int force,
- int fs_probe, int allow_floppy)
- {
- char *boot_path, *core_path, *core_path_dev, *core_path_dev_full;
- char *boot_img, *core_img;
-- char *root = 0;
- size_t boot_size, core_size;
- grub_uint16_t core_sectors;
- grub_device_t root_dev = 0, dest_dev, core_dev;
-@@ -253,7 +252,10 @@ setup (const char *dir,
-
- core_dev = dest_dev;
-
-- {
-+ if (root)
-+ root_dev = grub_device_open(root);
-+
-+ if (!root_dev) {
- char **root_devices = grub_guess_root_devices (dir);
- char **cur;
- int found = 0;
-@@ -263,6 +265,8 @@ setup (const char *dir,
- char *drive;
- grub_device_t try_dev;
-
-+ if (root_dev)
-+ break;
- drive = grub_util_get_grub_dev (*cur);
- if (!drive)
- continue;
-@@ -956,6 +960,8 @@ static struct argp_option options[] = {
+@@ -87,6 +87,8 @@ static struct argp_option options[] = {
N_("install even if problems are detected"), 0},
{"skip-fs-probe",'s',0, 0,
N_("do not probe for filesystems in DEVICE"), 0},
{"verbose", 'v', 0, 0, N_("print verbose messages."), 0},
{"allow-floppy", 'a', 0, 0,
/* TRANSLATORS: The potential breakage isn't limited to floppies but it's
-@@ -993,6 +999,7 @@ struct arguments
+@@ -130,6 +132,7 @@ struct arguments
char *core_file;
char *dir;
char *dev_map;
int force;
int fs_probe;
int allow_floppy;
-@@ -1040,6 +1047,13 @@ argp_parser (int key, char *arg, struct
+@@ -178,6 +181,13 @@ argp_parser (int key, char *arg, struct
arguments->dev_map = xstrdup (arg);
break;
case 'f':
arguments->force = 1;
break;
-@@ -1172,7 +1186,7 @@ main (int argc, char *argv[])
- setup (arguments.dir ? : DEFAULT_DIRECTORY,
- arguments.boot_file ? : DEFAULT_BOOT_FILE,
- arguments.core_file ? : DEFAULT_CORE_FILE,
-- dest_dev, arguments.force,
-+ arguments.root_dev, dest_dev, arguments.force,
- arguments.fs_probe, arguments.allow_floppy);
+@@ -313,7 +323,7 @@ main (int argc, char *argv[])
+ GRUB_SETUP_FUNC (arguments.dir ? : DEFAULT_DIRECTORY,
+ arguments.boot_file ? : DEFAULT_BOOT_FILE,
+ arguments.core_file ? : DEFAULT_CORE_FILE,
+- dest_dev, arguments.force,
++ arguments.root_dev, dest_dev, arguments.force,
+ arguments.fs_probe, arguments.allow_floppy,
+ arguments.add_rs_codes);
+
+--- a/util/setup.c
++++ b/util/setup.c
+@@ -247,13 +247,12 @@ identify_partmap (grub_disk_t disk __att
+ void
+ SETUP (const char *dir,
+ const char *boot_file, const char *core_file,
+- const char *dest, int force,
++ const char *root, const char *dest, int force,
+ int fs_probe, int allow_floppy,
+ int add_rs_codes __attribute__ ((unused))) /* unused on sparc64 */
+ {
+ char *core_path;
+ char *boot_img, *core_img, *boot_path;
+- char *root = 0;
+ size_t boot_size, core_size;
+ #ifdef GRUB_SETUP_BIOS
+ grub_uint16_t core_sectors;
+@@ -307,7 +306,10 @@ SETUP (const char *dir,
+
+ core_dev = dest_dev;
+
+- {
++ if (root)
++ root_dev = grub_device_open(root);
++
++ if (!root_dev) {
+ char **root_devices = grub_guess_root_devices (dir);
+ char **cur;
+ int found = 0;
+@@ -317,6 +319,8 @@ SETUP (const char *dir,
+ char *drive;
+ grub_device_t try_dev;
+
++ if (root_dev)
++ break;
+ drive = grub_util_get_grub_dev (*cur);
+ if (!drive)
+ continue;
+--- a/include/grub/util/install.h
++++ b/include/grub/util/install.h
+@@ -182,13 +182,13 @@ grub_install_get_image_target (const cha
+ void
+ grub_util_bios_setup (const char *dir,
+ const char *boot_file, const char *core_file,
+- const char *dest, int force,
++ const char *root, const char *dest, int force,
+ int fs_probe, int allow_floppy,
+ int add_rs_codes);
+ void
+ grub_util_sparc_setup (const char *dir,
+ const char *boot_file, const char *core_file,
+- const char *dest, int force,
++ const char *root, const char *dest, int force,
+ int fs_probe, int allow_floppy,
+ int add_rs_codes);
- /* Free resources. */
+--- a/util/grub-install.c
++++ b/util/grub-install.c
+@@ -1660,7 +1660,7 @@ main (int argc, char *argv[])
+ /* Now perform the installation. */
+ if (install_bootsector)
+ grub_util_bios_setup (platdir, "boot.img", "core.img",
+- install_drive, force,
++ NULL, install_drive, force,
+ fs_probe, allow_floppy, add_rs_codes);
+ break;
+ }
+@@ -1686,7 +1686,7 @@ main (int argc, char *argv[])
+ /* Now perform the installation. */
+ if (install_bootsector)
+ grub_util_sparc_setup (platdir, "boot.img", "core.img",
+- install_device, force,
++ NULL, install_device, force,
+ fs_probe, allow_floppy,
+ 0 /* unused */ );
+ break;