From owner-freebsd-hackers Sat Jul 4 08:49:25 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id IAA11037 for freebsd-hackers-outgoing; Sat, 4 Jul 1998 08:49:25 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from tim.xenologics.com (tim.xenologics.com [194.77.5.24]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id IAA11032 for ; Sat, 4 Jul 1998 08:49:22 -0700 (PDT) (envelope-from seggers@semyam.dinoco.de) Received: (from uucp@localhost) by tim.xenologics.com (8.8.5/8.8.8) with UUCP id RAA29431; Sat, 4 Jul 1998 17:47:57 +0200 (MET DST) Received: from localhost (localhost [127.0.0.1]) by semyam.dinoco.de (8.8.8/8.8.8) with ESMTP id RAA13559; Sat, 4 Jul 1998 17:31:55 +0200 (CEST) (envelope-from seggers@semyam.dinoco.de) Message-Id: <199807041531.RAA13559@semyam.dinoco.de> Cc: Mike Smith , Percy Cheng , seggers@semyam.dinoco.de To: hackers@FreeBSD.ORG Subject: Re: About FreeBSD boot manager... In-reply-to: Your message of "Thu, 02 Jul 1998 21:10:50 PDT." <199807030410.VAA03762@antipodes.cdrom.com> Date: Sat, 04 Jul 1998 17:31:54 +0200 From: Stefan Eggers Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > detail on : What's mean within 1024 cylinders?? And how > > much the HDD space can be located within it?? > > This depends on your disk. Typically, it means that you're restricted > to the first 500MB of an IDE disk. But one shouldn't depend on this to be the exact number for all disks. My brothers new 5.1 GByte IDE harddisk says it has 15 heads and then the amount of space useable for bootable partitions will be smaller by a factor of 16/15. Take 1024, multiply it by the number of sectors per track and then multiply by the number of heads. To convert it to KByte divide by a factor of 2 as a sector is 512 Bytes. That's the useable space for booting in KByte. Stefan. -- Stefan Eggers Lu4 yao2 zhi1 ma3 li4, Max-Slevogt-Str. 1 ri4 jiu3 jian4 ren2 xin1. 51109 Koeln Federal Republic of Germany To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message