Date: Thu, 16 Oct 2008 20:22:33 +0200 From: Marco <ilikefbsd@web.de> To: Josh Paetzel <jpaetzel@FreeBSD.org> Cc: Jeremy Chadwick <koitsu@FreeBSD.org>, freebsd-questions@freebsd.org Subject: Re: new hdd numeration after mainboard change Message-ID: <48F78669.4020808@web.de> In-Reply-To: <48F3A593.3000005@FreeBSD.org> References: <1675072737@web.de> <20081013174620.GA24725@icarus.home.lan> <48F3A593.3000005@FreeBSD.org>
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Thank you very much, of course it was the AHCI configuration in the BIOS, luckily i can now switch between AHCI and compatibility mode when using Windows(otherwise it will result in a bluescreen) ;-) Best regards, Marco Josh Paetzel wrote: > Jeremy Chadwick wrote: > > On Mon, Oct 13, 2008 at 07:12:20PM +0200, ilikefbsd@web.de wrote: > >> i run "FreeBSD 7.1-PRERELEASE" i had a change of the mainboard of my > >> lenovo notebook t60. after reboot the harddisk which was before > >> recognized as "ad0" is now "ad4". i cannot find any other devices, no > >> ad0/ad1/ad2 in /dev. even in the dmesg only ad4 > > The T60 is a laptop. It only has one hard disk -- so I'm not sure why > > you were seeing ad0, ad1, ad2 in the past. You shouldn't have been, > > unless you had 3 hard disks hooked up somehow. > > > The bottom line here is this: absolutely *nothing* requires the device > > numbering to start at zero. And this is definitely the case. > > >> does fbsd create a uniqe identifier for harddisks in combination with > >> the motherboard or something like that? where can i dig further into > >> that issue? > > It's not really an "issue". Very likely your computer has toggled some > > BIOS settings. > > > The T60 series has the ability to run the SATA ports in two modes: AHCI, > > or Enhanced/Compatible. Chances are before the motherboard swap, yours > > was running in the opposite mode that it is now. > > > I would highly recommend using the AHCI mode. It works quite well with > > FreeBSD under Intel controllers. Turn AHCI on (if it's not already), > > and do not mess with it. > > > I can verify as a T60 owner, if you toggle the BIOS between AHCI and > "Compatability" the hard drive will show up as either ad4 or ad0. > > It works fine in either mode with FreeBSD. Unless you are running > another OS that doesn't have SATA support there's really no reason to > use compatibility mode > _______________________________________________ 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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