1 files changed, 60 insertions, 0 deletions
diff --git a/sys-boot/grub/files/grub-1.97-hostdisk.patch b/sys-boot/grub/files/grub-1.97-hostdisk.patch
new file mode 100644
index 00000000..6eb7fe48
--- /dev/null
+++ b/sys-boot/grub/files/grub-1.97-hostdisk.patch
@@ -0,0 +1,60 @@
+--- util/hostdisk.c	2010-01-25 17:04:22 +0000
++++ util/hostdisk.c	2010-01-31 11:52:27 +0000
+@@ -336,7 +336,8 @@
+     char dev[PATH_MAX];
+ 
+     strcpy (dev, map[disk->id].device);
+-    if (disk->partition && strncmp (map[disk->id].device, "/dev/", 5) == 0)
++    if (disk->partition && sector >= disk->partition->start
++	&& strncmp (map[disk->id].device, "/dev/", 5) == 0)
+       is_partition = linux_find_partition (dev, disk->partition->start);
+ 
+     /* Open the partition.  */
+@@ -490,6 +491,23 @@
+ {
+   int fd;
+ 
++  /* Split pre-partition and partition reads.  */
++  if (disk->partition && sector < disk->partition->start
++      && sector + size > disk->partition->start)
++    {
++      grub_err_t err;
++      err = grub_util_biosdisk_read (disk, sector,
++				     disk->partition->start - sector,
++				     buf);
++      if (err)
++	return err;
++
++      return grub_util_biosdisk_read (disk, disk->partition->start,
++				      size - (disk->partition->start - sector),
++				      buf + ((disk->partition->start - sector)
++					     << GRUB_DISK_SECTOR_BITS));
++    }
++
+   fd = open_device (disk, sector, O_RDONLY);
+   if (fd < 0)
+     return grub_errno;
+@@ -527,6 +545,23 @@
+ {
+   int fd;
+ 
++  /* Split pre-partition and partition writes.  */
++  if (disk->partition && sector < disk->partition->start
++      && sector + size > disk->partition->start)
++    {
++      grub_err_t err;
++      err = grub_util_biosdisk_write (disk, sector,
++				      disk->partition->start - sector,
++				      buf);
++      if (err)
++	return err;
++
++      return grub_util_biosdisk_write (disk, disk->partition->start,
++				       size - (disk->partition->start - sector),
++				       buf + ((disk->partition->start - sector)
++					      << GRUB_DISK_SECTOR_BITS));
++    }
++
+   fd = open_device (disk, sector, O_WRONLY);
+   if (fd < 0)
+     return grub_errno;