Re: Software Raid not autodetected with bsd disklabel

[Tom Vier <tmv@comcast.net>]

On Sun, Aug 24, 2003 at 11:37:02AM -0700, MC wrote:
> Anyone have any ideas?  And has anybody ever been able to boot to a raid
> array?

yes. i sent alan a patch a while ago, but he was worried about dec unix
possibly using 0xfd partition types. i don't remember exactly where it left
off, but iirc, i couldn't find anyone to authoritately say if it was used or
not. here's the patch i use for 2.4.

-- 
Tom Vier <tmv@comcast.net>
DSA Key ID 0xE6CB97DA

diff -urN linux-2.4.10-ac7-patched-build/fs/partitions/osf.c
linux-2.4.10-ac7-patched-build-osf/fs/partitions/osf.c
--- linux-2.4.10-ac7-patched-build/fs/partitions/osf.c  Sat Oct  6 13:25:48
2001
+++ linux-2.4.10-ac7-patched-build-osf/fs/partitions/osf.c      Sat Oct  6
13:25:20 2001
@@ -7,6 +7,7 @@
  *  Re-organised Feb 1998 Russell King
  */

+#include <linux/config.h>
 #include <linux/fs.h>
 #include <linux/genhd.h>
 #include <linux/kernel.h>
@@ -17,6 +18,10 @@
 #include "check.h"
 #include "osf.h"

+#if CONFIG_BLK_DEV_MD
+extern void md_autodetect_dev(kdev_t dev);
+#endif
+
 int osf_partition(struct gendisk *hd, struct block_device *bdev,
                unsigned long first_sector, int current_minor)
 {
@@ -74,10 +79,16 @@
        for (i = 0 ; i < le16_to_cpu(label->d_npartitions); i++,
partition++) {
                if ((current_minor & mask) == 0)
                        break;
-               if (le32_to_cpu(partition->p_size))
-                       add_gd_partition(hd, current_minor,
-
first_sector+le32_to_cpu(partition->p_offset),
-                               le32_to_cpu(partition->p_size));
+               if (le32_to_cpu(partition->p_size)) {
+                               add_gd_partition(hd, current_minor,
+
first_sector+le32_to_cpu(partition->p_offset),
+                                       le32_to_cpu(partition->p_size));
+#if CONFIG_BLK_DEV_MD
+                               if (partition->p_fstype ==
LINUX_RAID_PARTITION) {
+
md_autodetect_dev(MKDEV(hd->major,current_minor));
+                               }
+#endif
+               }
                current_minor++;
        }
        printk("\n");