commit 89bf5afe2079cbe188e9fe66e95db0ea6a74ba86
Author: Andriy Stepanov <stanv@altlinux.ru>
Date:   Mon Apr 25 20:05:07 2011 +0400

    ALT: calculate Partition table header size in right way

diff --git a/plugins/gpt/gpt.h b/plugins/gpt/gpt.h
index 6e04f73..7551984 100644
--- a/plugins/gpt/gpt.h
+++ b/plugins/gpt/gpt.h
@@ -142,7 +142,7 @@ typedef struct _gpt_header_s {
     u_int32_t       ptable_count;          // number of entries in the partition table
     u_int32_t       ptable_entry_size;     // size of a partition table entry
     u_int32_t       ptable_crc;            // CRC of the partition table
-} gpt_header;
+} __attribute__((packed)) gpt_header;
 
 
 // gpt partition types