Date: Sat, 10 Aug 2002 13:27:32 -0700 From: "Kevin Oberman" <oberman@es.net> To: Ian Dowse <iedowse@maths.tcd.ie> Cc: stable@freebsd.org Subject: Re: boot0cfg and fdisk will not write an mbr to boot past cyl. 1023 Message-ID: <20020810202732.C33305D04@ptavv.es.net> In-Reply-To: Your message of "Sat, 10 Aug 2002 01:46:29 BST." <200208100146.aa19136@salmon.maths.tcd.ie>
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> Date: Sat, 10 Aug 2002 01:46:29 +0100 > From: Ian Dowse <iedowse@maths.tcd.ie> > > In message <20020809211608.54A3A5D04@ptavv.es.net>, Kevin Oberman writes: > >I have confirmed that fdisk under sysinstall(8) writes a boot block > >that will work for booting from slices that begin past cylinder > >1023. boot0cfg(8) and fdisk(8) write an MBR that is unable to boot > >from a slice that starts above 1023. > > Did you try "boot0cfg -o packet"? From boot0cfg(8): > > packet Use the disk packet (BIOS Int 0x13 extensions) interface, > as as opposed to the legacy (CHS) interface, when doing > disk I/O. This allows booting above cylinder 1023, but > requires specific BIOS support. The default is > `nopacket'. Ahh. I really need to learn to read the WHOLE man page. Thanks, Ian. R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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