77 lines
2.3 KiB
Diff
77 lines
2.3 KiB
Diff
--- a/util/grub-setup.c
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+++ b/util/grub-setup.c
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@@ -141,12 +141,11 @@ write_rootdev (char *core_img, grub_devi
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static void
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setup (const char *dir,
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const char *boot_file, const char *core_file,
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- const char *dest, int force,
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+ const char *root, const char *dest, int force,
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int fs_probe, int allow_floppy)
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{
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char *boot_path, *core_path, *core_path_dev, *core_path_dev_full;
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char *boot_img, *core_img;
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- char *root = 0;
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size_t boot_size, core_size;
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grub_uint16_t core_sectors;
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grub_device_t root_dev = 0, dest_dev, core_dev;
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@@ -253,7 +252,10 @@ setup (const char *dir,
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core_dev = dest_dev;
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- {
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+ if (root)
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+ root_dev = grub_device_open(root);
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+
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+ if (!root_dev) {
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char **root_devices = grub_guess_root_devices (dir);
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char **cur;
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int found = 0;
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@@ -263,6 +265,8 @@ setup (const char *dir,
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char *drive;
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grub_device_t try_dev;
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+ if (root_dev)
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+ break;
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drive = grub_util_get_grub_dev (*cur);
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if (!drive)
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continue;
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@@ -956,6 +960,8 @@ static struct argp_option options[] = {
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N_("install even if problems are detected"), 0},
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{"skip-fs-probe",'s',0, 0,
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N_("do not probe for filesystems in DEVICE"), 0},
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+ {"root-device", 'r', N_("DEVICE"), 0,
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+ N_("use DEVICE as the root device"), 0},
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{"verbose", 'v', 0, 0, N_("print verbose messages."), 0},
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{"allow-floppy", 'a', 0, 0,
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/* TRANSLATORS: The potential breakage isn't limited to floppies but it's
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@@ -993,6 +999,7 @@ struct arguments
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char *core_file;
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char *dir;
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char *dev_map;
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+ char *root_dev;
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int force;
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int fs_probe;
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int allow_floppy;
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@@ -1040,6 +1047,13 @@ argp_parser (int key, char *arg, struct
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arguments->dev_map = xstrdup (arg);
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break;
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+ case 'r':
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+ if (arguments->root_dev)
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+ free (arguments->root_dev);
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+
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+ arguments->root_dev = xstrdup (arg);
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+ break;
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+
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case 'f':
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arguments->force = 1;
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break;
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@@ -1172,7 +1186,7 @@ main (int argc, char *argv[])
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setup (arguments.dir ? : DEFAULT_DIRECTORY,
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arguments.boot_file ? : DEFAULT_BOOT_FILE,
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arguments.core_file ? : DEFAULT_CORE_FILE,
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- dest_dev, arguments.force,
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+ arguments.root_dev, dest_dev, arguments.force,
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arguments.fs_probe, arguments.allow_floppy);
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/* Free resources. */
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