[syslinux] [How-To?] Using Syslinux AltMBR + TrueCrypt System Encryption (RFE: swap drive ID's)

H. Peter Anvin hpa at zytor.com
Mon May 25 22:06:29 PDT 2009


freeman wrote:
> 
> (Note that altmbr.bin doesn't seem to detect multiple bootable
> partitions at all - FWICT the normal MBR.bin only detect multiple
> partitions *of the same type* - primary or logical - so even with the
> normal syslinux MBR one can safely have a boot_active primary partition
> and boot_active logical partition ... but for what purpose?!?!)
> 

To answer the question: there are some buggy partitioning programs out
there which set the Active flag on *ALL* logical partitions, so we
ignore the Active flag on logical partitions if there are active primary
partitions.

It also makes the code slightly simpler.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.




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