Messages in this thread |  | | | Date | Thu, 04 Mar 2010 07:29:12 -0800 | | From | "H. Peter Anvin" <> | | Subject | Re: [PATCH] msdos: add support for large disks |
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On 03/04/2010 01:18 AM, OGAWA Hirofumi wrote: > "Daniel Taylor"<Daniel.Taylor@wdc.com> writes: > >> It is only the intermediate variables in the module that are >> currently hard-coded to 32-bits, and which truncate the values. > > BTW, it may not be only 32-bits truncate issue. IIRC, e.g. some > implement is checking the 0xaa mark at the end of sector. I forgot > almost though, IIRC, Windows writes 0xaa mark to the both of "end of > sector" and "end of 512" for compatibility. > > Thanks.
The spec is that the mark, partition table etc. at the end of 512 bytes; of course, a lot of people go that wrong. -hpa
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