[ipxe-devel] uuid mangling patch

Michael Brown mcb30 at ipxe.org
Tue Mar 19 16:16:10 UTC 2013

On 19/03/13 16:09, Michael Brown wrote:
>> Is it possible another value in the SMBIOS information contains
>> information about the endianness of the UUID field?
> Nothing I've found, though I haven't looked too hard.

Looks as though the endianness changed in SMBIOS 2.6, for some unknown 


This is incredibly annoying to deal with; iPXE treats a UUID (from any 
source) as being an opaque sequence of bytes.  It's only at the point of 
converting to a text string that we care about endianness, and at that 
point we have no knowledge of where the raw data came from.


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