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-rw-r--r--lib/libdisk/change.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/libdisk/change.c b/lib/libdisk/change.c
index 297ac11efa9d..0ee047f6ee7f 100644
--- a/lib/libdisk/change.c
+++ b/lib/libdisk/change.c
@@ -36,14 +36,17 @@ Sanitize_Bios_Geom(struct disk *disk)
if (disk->bios_cyl >= 65536)
sane = 0;
- if (disk->bios_hd > 256)
- sane = 0;
#ifdef PC98
+ if (disk->bios_hd >= 256)
+ sane = 0;
if (disk->bios_sect >= 256)
+ sane = 0;
#else
+ if (disk->bios_hd > 256)
+ sane = 0;
if (disk->bios_sect > 63)
-#endif
sane = 0;
+#endif
if (disk->bios_cyl * disk->bios_hd * disk->bios_sect !=
disk->chunks->size)
sane = 0;