Date: Mon, 16 May 2005 00:05:43 -0700 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: "Marcello Maggioni" <hayarms@gmail.com> Cc: freebsd-questions@freebsd.org Subject: RE: LBA and CHS parameters of my FBSD partition differ! Message-ID: <LOBBIFDAGNMAMLGJJCKNKEGOFBAA.tedm@toybox.placo.com> In-Reply-To: <63f529680505150230236e953d@mail.gmail.com>
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Yes, read question 4.2.4 from the installation notes: http://www.freebsd.org/releases/5.4R/installation-i386.html Ted > -----Original Message----- > From: Marcello Maggioni [mailto:hayarms@gmail.com] > Sent: Sunday, May 15, 2005 2:30 AM > To: Ted Mittelstaedt > Cc: freebsd-questions@freebsd.org > Subject: Re: LBA and CHS parameters of my FBSD partition differ! > > > So are you saying that I should ignore the message during FBSD setup > and also ignore the message from PM too? > > Just another question, is this "fact" common or I'm just the only one > who get it ?:D > > Thanks again > > Marcello > > 2005/5/15, Ted Mittelstaedt <tedm@toybox.placo.com>: > > > > > Is this problem present silently with every OS (the > problem exists but > > > is not reported) > > > > yes. But, why is it a problem? It really isn't, you know. > > > > The only BIOS thing concerning hard disks that any modern operating > > system > > uses is the BIOS routines to load the kernel. Whether the > kernel is a > > FreeBSD > > kernel like FreeBSD, or a Windows kernel like NTKERNEL, once > the kernel > > and > > disk drivers have been fetched from the hard disk, via BIOS > code, they > > are > > loaded, and the operating system can now talk to the hard > disk directly. > > > > Granted, if you use some real-mode program to partition the > hard disk, > > like > > the Windows 98 fdisk program running under DOS, why then you > are going to > > be > > concerned with things like this. But, WinXP, Win2K, OS/2, > all UNIXES, > > they all require themselves to be booted and running. > > > > FreeBSD knows all about how to read partition tables that > Windows OSes > > have > > left on the hard drive, so in a dual-boot situation it > should keep clear > > of the > > Windows partition. Windows knows all about how to read > partition tables > > that > > itself writes, and God knows if it knows anything beyond that, so in > > general > > on dual-boot systems, if you follow the convention of loading Windows > > first > > followed by loading FreeBSD, then all the bits end up in the > right place. > > > > Partition Magic is, in my opinion, nothing more than a > crutch for lazy > > people > > who are too lazy to backup their Windows systems then > reformat their hard > > drives > > with Windows and create with Windows a smaller partition, > leaving free > > space > > for FreeBSD. But of course, saying that is going to get > people coming > > out of > > the woodwork to flame me. > > > > Ted > > > > > > > -----Original Message----- > > > From: Marcello Maggioni [mailto:hayarms@gmail.com] > > > Sent: Sunday, May 15, 2005 1:58 AM > > > To: Ted Mittelstaedt > > > Cc: freebsd-questions@freebsd.org > > > Subject: Re: LBA and CHS parameters of my FBSD partition differ! > > > > > > > > > Very bad... > > > > > > My motherboard (Abit KV7) has 8 different bios release and none of > > > these seems to solve this issue. My 30GB disk on the other IDE > > > channel seems to work fine with FreeBSD. > > > Is this problem present silently with every OS (the > problem exists but > > > is not reported) or only with FBSD? > > > > > > Thanks > > > > > > Marcello > > > > > > 2005/5/15, Ted Mittelstaedt <tedm@toybox.placo.com>: > > > > > > > > Well, your skirting the thin edge since you obviously have a > > > dual-boot > > > > system - but if a fsck of the FreeBSD partition, and a > > > chkdsk /f of the > > > > XP partition turn up nothing, your probably fine. > > > > > > > > What is going on is your motherboard BIOS is old, and > > > doesen't understand > > > > disk drives that report more than > > > > > > > > cylinders 16383 > > > > heads 16 > > > > sectors/track 63 > > > > > > > > and furthermore doesen't understand LBA mode all that > well either. > > > > Basically, > > > > the OS (either Windows or FreeBSD) does a BIOS call at boot > > > to figure out > > > > the > > > > size of the disk, and what they are both getting back > > > differs from what > > > > the > > > > drive reports when the disk driver queries it directly. > > > > > > > > If your motherboard is reasonably supported the manufacturer > > > may have a > > > > BIOS update that might fix this. Otherwise, if everything > > > is working, > > > > leave well enough alone. > > > > > > > > The failure that can result if your not lucky is that one OS > > > scribbles on > > > > the others space on the disk. > > > > > > > > For people that only run a single OS on the computer, these error > > > > messages > > > > can be ignored - unless, that is, after installation, the FreeBSD > > > > partition > > > > fails to boot. > > > > > > > > Ted > > > > > > > > > -----Original Message----- > > > > > From: owner-freebsd-questions@freebsd.org > > > > > [mailto:owner-freebsd-questions@freebsd.org]On Behalf > Of Marcello > > > > > Maggioni > > > > > Sent: Saturday, May 14, 2005 4:09 PM > > > > > To: freebsd-questions@freebsd.org > > > > > Subject: LBA and CHS parameters of my FBSD partition differ! > > > > > > > > > > > > > > > Hi all, > > > > > > > > > > I have FreeBSD 5.4 installed after a buildworld from 5.3 . > > > > > > > > > > The problem is that during the setup of the system a > > > warning message > > > > > appeared and notified me something about "Wrong disk > geometry" or > > > > > something like that. I ignored the message and > installed the system > > > > > which booted and worked fine . > > > > > > > > > > Today, from my WinXP disk I loaded Partition Magic 8 and > > > this warned > > > > > me that my FBSD partition has different LBA and CHS > parameters and > > > > > that this is wrong, because these two should be identical > > > and asked me > > > > > if I would like to correct this. I answered no, bue what > > > should I do? > > > > > Why there is this incongruency in these 2 parameters? > > > > > > > > > > Thanks > > > > > > > > > > Marcello > > > > > _______________________________________________ > > > > > freebsd-questions@freebsd.org mailing list > > > > > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > > > > > To unsubscribe, send any mail to > > > > > "freebsd-questions-unsubscribe@freebsd.org" > > > > > > > > > > > > > > > > > > > > >
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