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Date:	Sun, 14 Mar 2010 18:56:20 -0400
From:	s ponnusa <>
To:	Michal Soltys <>
Cc:	Tejun Heo <>, Mikael Abrahamsson <>,
	"" <>,
	lkml <>,
	Daniel Taylor <>,
	Jeff Garzik <>, Mark Lord <>,, "H. Peter Anvin" <>,,
	Andrew Morton <>,
	Alan Cox <>,,
	Matthew Wilcox <>,,,
Subject: Re: ATA 4 KiB sector issues.

Has been following this thread and I might possibly be testing with
Windows XP soon. Will update the results.

On Sun, Mar 14, 2010 at 5:09 PM, Michal Soltys <> wrote:
> Tejun Heo wrote:
>> I was thinking about testing XP booting this weekend but really want
>> to avoid it, so thanks a lot for the info.  I'll update the doc
>> accordingly but can you please enlighten me on how it works and what's
>> broken in detail?  So, XP should be fine with any alignment?
>> Thanks.
> Sorry for late reply.
> s/sp2/sp3 - although it shouldn't make a difference from sp2 onwards.
> Anyway - the tests I did were because of weird laptop, where I shrinked
> whole win7 stuff and having no primary partitions left to use, I tested my
> usual windows xp installation I deploy with ntfsclone. Originally that XP
> were installed from installation disk merged with sp3 (or how it's usually
> called in windows world - slipstreamed). Of course, windows xp itself will
> not present any options to install itself into logical partition in the
> usual way - but during later deployment it's not a problem to put it where
> one's want.
> It's possible that this wouldn't work, if windows were installed first from
> pre-sp2 media, and then service pack was installed (in such case, ntldr in
> C:\ is not updated afaik). It's also possible, that "brute-force" copied
> pre-sp2 or win2k to a partition made with either - a) xp sp2+'s disk manager
> or b) mkfs.ntfs and with updated most recent ntldr -  would boot as well
> (the partition requirement is due to potential differences between the code
> in bootsector, or more precisely - $Boot - first 8KiB of ntfs partition).
> Obvious requirements besides the above (ntldr, perhaps $Boot as well) are:
> - mentioned "hidden sectors" (must be manually adjusted, recent syslinux's
> chain.c32 has option to do it automatically)
> - adjusted boot.ini (to point to new partition, eventually other windowish
> stuff as necessary)
> As you can see, there're many "if"s and combinations here that I didn't
> test.
> On a related note - ironically, while I had 0 problems making it work
> through syslinux (both regular chaining and through direct ntldr loading) -
> I couldn't make win7's bootmgr (bcd, bcdedit ....) do it properly. Oh well.
> --
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