Date: Wed, 26 Aug 1998 17:30:38 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: hiren@tagore.wipinfo.soft.net (Hiren Mehta) Cc: freebsd-fs@FreeBSD.ORG Subject: Re: question about msdosfs file system Message-ID: <199808261730.KAA10855@usr02.primenet.com> In-Reply-To: <Pine.SV4.3.93.980826125325.10298B-100000@tagore> from "Hiren Mehta" at Aug 26, 98 12:55:44 pm
next in thread | previous in thread | raw e-mail | index | archive | help
> Hi All, > > In case of MSDOS formatted device, is there any guarantee that the > files are will start on 8192 bytes boundary of the device ? No. There is neither a guarantee that it will start on a 4096 byte boundary, a 2048, or a 1024. There *is* a guarantee that it will start on a 512 byte boundary. In general, where it starts depends on the C:H:S geometry of the device; specifically, DOS likes to write the DOS partition table to place the DOS partitions to start and end on cylinder boundaries. This means that for a default DOS device, where the first partition is not munged by an ill-informed "do-gooder", it will start at the 0 + S * H'th sector. Obviously, this can be on any boundary, whatsoever, based on the values of H and S. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199808261730.KAA10855>