On Tue, Jan 08, 2008 at 10:05:59PM +0100, Jan Nieuwenhuizen wrote:
> Robert Millan writes:
>
> > Ok, so I fixed lvm/raid handling in core.img (by grub-install). This will
> > help
> > those who (unlike you) have their /boot under LVM or software RAID.
>
> I applied both pathces, but lvm does not work for me yet. The second
> patch has
>
> +devtype_module=`$grub_probe --target=type --device-map=${device_map}
> ${grubdir}`
>
> but my grub-probe patched against latest CVS does grok --target=type, it
> says
>
> Try ``grub-probe --help'' for more information.
> -t, --target=(fs|drive|device|partmap)
>
> Should I be pulling some git branch of yours?
Try this one.
> When I replace the line above with
>
> +devtype_module=`$grub_probe --target=device --device-map=${device_map}
> ${grubdir}`
No, --target=device returns a device name which is not what you want.
--
Robert Millan
<GPLv2> I know my rights; I want my phone call!
<DRM> What use is a phone call, if you are unable to speak?
(as seen on /.)
Only in grub2.lvm: config.h.in~
diff -x configure -x config.h.in -ur grub2/include/grub/util/getroot.h grub2.lvm/include/grub/util/getroot.h
--- grub2/include/grub/util/getroot.h 2007-07-22 01:32:25.000000000 +0200
+++ grub2.lvm/include/grub/util/getroot.h 2008-01-08 22:19:17.000000000 +0100
@@ -21,6 +21,6 @@
char *grub_guess_root_device (const char *dir);
char *grub_get_prefix (const char *dir);
-char *grub_util_get_grub_dev (const char *os_dev);
+char *grub_util_get_grub_dev (const char *dev_type, const char *os_dev);
#endif /* ! GRUB_UTIL_GETROOT_HEADER */
diff -x configure -x config.h.in -ur grub2/util/getroot.c grub2.lvm/util/getroot.c
--- grub2/util/getroot.c 2007-07-22 01:32:31.000000000 +0200
+++ grub2.lvm/util/getroot.c 2008-01-08 22:19:17.000000000 +0100
@@ -239,11 +239,41 @@
return os_dev;
}
+static char *dev_types[] = {
+ "",
+ "lvm",
+ "raid",
+};
+
+enum {
+ TYPE_RAW,
+ TYPE_LVM,
+ TYPE_RAID,
+};
+
char *
-grub_util_get_grub_dev (const char *os_dev)
+grub_util_get_dev_type (const char *os_dev)
{
/* Check for LVM. */
if (!strncmp (os_dev, "/dev/mapper/", 12))
+ return dev_types[TYPE_LVM];
+
+ /* Check for RAID. */
+ if (!strncmp (os_dev, "/dev/md", 7))
+ return dev_types[TYPE_RAID];
+
+ /* If it's not RAID or LVM, it should be a biosdisk. */
+ return dev_types[TYPE_RAW];
+}
+
+char *
+grub_util_get_grub_dev (const char *type, const char *os_dev)
+{
+ if (! type)
+ type = grub_util_get_dev_type (os_dev);
+
+ /* Check for LVM. */
+ if (!strcmp (type, "lvm"))
{
char *grub_dev = xmalloc (strlen (os_dev) - 12 + 1);
@@ -253,7 +283,7 @@
}
/* Check for RAID. */
- if (!strncmp (os_dev, "/dev/md", 7))
+ if (!strcmp (type, "raid"))
{
const char *p;
char *grub_dev = xmalloc (20);
diff -x configure -x config.h.in -ur grub2/util/grub-probe.c grub2.lvm/util/grub-probe.c
--- grub2/util/grub-probe.c 2007-07-22 21:17:26.000000000 +0200
+++ grub2.lvm/util/grub-probe.c 2008-01-08 22:40:38.000000000 +0100
@@ -39,10 +39,13 @@
#define _GNU_SOURCE 1
#include <getopt.h>
-#define PRINT_FS 0
-#define PRINT_DRIVE 1
-#define PRINT_DEVICE 2
-#define PRINT_PARTMAP 3
+enum {
+ PRINT_FS,
+ PRINT_DRIVE,
+ PRINT_DEVICE,
+ PRINT_PARTMAP,
+ PRINT_TYPE,
+};
int print = PRINT_FS;
@@ -74,6 +77,7 @@
{
char *device_name;
char *drive_name = NULL;
+ char *type_name;
grub_device_t dev;
grub_fs_t fs;
@@ -87,7 +91,17 @@
goto end;
}
- drive_name = grub_util_get_grub_dev (device_name);
+ type_name = grub_util_get_dev_type (device_name);
+ if (! type_name)
+ grub_util_error ("cannot identify drive type for %s.\n", device_name);
+
+ if (print == PRINT_TYPE)
+ {
+ printf ("%s\n", type_name);
+ goto end;
+ }
+
+ drive_name = grub_util_get_grub_dev (type_name, device_name);
if (! drive_name)
grub_util_error ("cannot find a GRUB drive for %s.\n", device_name);
@@ -206,6 +220,8 @@
print = PRINT_DEVICE;
else if (!strcmp (optarg, "partmap"))
print = PRINT_PARTMAP;
+ else if (!strcmp (optarg, "type"))
+ print = PRINT_TYPE;
else
usage (1);
break;
Only in grub2.lvm/util: grub-probe.c~
diff -x configure -x config.h.in -ur grub2/util/i386/pc/grub-install.in grub2.lvm/util/i386/pc/grub-install.in
--- grub2/util/i386/pc/grub-install.in 2007-12-30 09:52:06.000000000 +0100
+++ grub2.lvm/util/i386/pc/grub-install.in 2008-01-08 22:19:17.000000000 +0100
@@ -223,8 +223,11 @@
# filesystem will be accessible).
partmap_module=`$grub_probe --target=partmap --device-map=${device_map} ${grubdir} 2> /dev/null`
+# Device type module, if any (lvm, raid).
+devtype_module=`$grub_probe --target=type --device-map=${device_map} ${grubdir}`
+
# _chain is often useful
-modules="$modules $fs_module $partmap_module biosdisk _chain"
+modules="$modules $fs_module $partmap_module $devtype_module biosdisk _chain"
$grub_mkimage --output=${grubdir}/core.img --prefix=`make_system_path_relative_to_its_root ${grubdir}` $modules || exit 1
diff -x configure -x config.h.in -ur grub2/util/i386/pc/grub-setup.c grub2.lvm/util/i386/pc/grub-setup.c
--- grub2/util/i386/pc/grub-setup.c 2008-01-05 13:20:28.000000000 +0100
+++ grub2.lvm/util/i386/pc/grub-setup.c 2008-01-08 22:19:17.000000000 +0100
@@ -668,7 +668,7 @@
if (! dest_dev)
{
/* Possibly, the user specified an OS device file. */
- dest_dev = grub_util_get_grub_dev (argv[optind]);
+ dest_dev = grub_util_get_grub_dev (NULL, argv[optind]);
if (! dest_dev)
{
fprintf (stderr, "Invalid device `%s'.\n", argv[optind]);
@@ -694,7 +694,7 @@
}
else
{
- root_dev = grub_util_get_grub_dev (grub_guess_root_device (dir ? : DEFAULT_DIRECTORY));
+ root_dev = grub_util_get_grub_dev (NULL, grub_guess_root_device (dir ? : DEFAULT_DIRECTORY));
if (! root_dev)
{
grub_util_info ("guessing the root device failed, because of `%s'",
@@ -734,7 +734,7 @@
dir ? : DEFAULT_DIRECTORY,
boot_file ? : DEFAULT_BOOT_FILE,
core_file ? : DEFAULT_CORE_FILE,
- root_dev, grub_util_get_grub_dev (devicelist[i]), 1);
+ root_dev, grub_util_get_grub_dev (NULL, devicelist[i]), 1);
}
free (raid_prefix);
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