Date: Fri, 21 Feb 2003 11:08:56 +0300 From: "Michael Soboleff" <z@reflection.net.ru> To: <freebsd-questions@FreeBSD.ORG> Subject: Re: different disk geometry Message-ID: <002001c2d980$7b5b7db0$0d01a8c0@yp.local> References: <000901c2d8f0$6e8fe570$0d01a8c0@yp.local> <20030220175023.GD288@sub21-156.member.dsl-only.net>
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it is OK for 4.7 but my old 5.0 installation says that 79780xxx - is invalid, so using more likely geometry - 5005xxxx and while trying to modify anything using sysinstall fdisk i get write error! is this a bug of 5.0-release? ----- Original Message ----- From: "Nathan Kinkade" <nkinkade@dsl-only.net> To: <freebsd-questions@FreeBSD.ORG> Sent: Thursday, February 20, 2003 8:50 PM Subject: Re: different disk geometry On Thu, Feb 20, 2003 at 05:57:47PM +0300, Michael Soboleff wrote: > I have 40Gb IBM IDE drive, while booting freebsd 4.7 shows > me 79780/16/63 geometry, > but! sysinstall gives me another numbers : 5005/255/63. The > QUESTION is it OK? Both are logical geometries. They are roughly equivalent: 79780 * 16 * 63 = 80418240 addressable sectors, or ~40GB 5005 * 255 * 63 = 80405325 addressable sectors, or ~40GB The first figure (79780/16/63) is the disk geometry that is probably printed on the label on the front of the disk and is conformant with the ATA standard. The second figure (5005/255/63) is probably the geometry that your BIOS is using. Either way, as long as the machine works then you shouldn't have to worry. Nathan -- GPG Public Key ID: 0x4250A04C gpg --keyserver pgp.mit.edu --recv-keys 4250A04C http://63.105.21.156/gpg_nkinkade_4250A04C.asc To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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