Hi,
When we open a partition grub_disk_open() sets disk->total_sectors to
the size of the disk, not the size of the partition. We also don't
check whether we grub_partition_probe() actually finds a
partition. See the patch below.
Jeroen Dekkers
2006-07-05 Jeroen Dekkers <[EMAIL PROTECTED]>
* kern/disk.c (grub_disk_open): Check whether
grub_partition_probe() finds a partition. Set disk->total_sectors
to the size of the partition if we open a partition.
Index: kern/disk.c
===================================================================
RCS file: /cvsroot/grub/grub2/kern/disk.c,v
retrieving revision 1.13
diff -u -p -r1.13 disk.c
--- kern/disk.c 4 Jun 2006 15:56:54 -0000 1.13
+++ kern/disk.c 5 Jul 2006 20:51:18 -0000
@@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
- * Copyright (C) 2002,2003,2004 Free Software Foundation, Inc.
+ * Copyright (C) 2002,2003,2004,2006 Free Software Foundation, Inc.
*
* GRUB is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -265,7 +265,16 @@ grub_disk_open (const char *name)
disk->dev = dev;
if (p)
- disk->partition = grub_partition_probe (disk, p + 1);
+ {
+ disk->partition = grub_partition_probe (disk, p + 1);
+ if (! disk->partition)
+ {
+ grub_error (GRUB_ERR_UNKNOWN_DEVICE, "no such partition");
+ goto fail;
+ }
+
+ disk->total_sectors = grub_partition_get_len (disk->partition);
+ }
/* The cache will be invalidated about 2 seconds after a device was
closed. */
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