Date: Wed, 19 Jun 1996 04:15:03 -0700 (MST) From: Don Yuniskis <dgy@rtd.com> To: freebsd-hackers@freefall.FreeBSD.org (FreeBSD hackers) Subject: Re: wd? numbering question Message-ID: <199606191115.EAA15716@seagull.rtd.com>
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> Primary IDE controller, Master : 400M HDD (Windows 95) > Primary IDE controller, Slave : none > Secondary IDE controller, Master : 1.6G HDD (FreeBSD 2.1) > Secondary IDE controller, Slave : none > > After insallation, it rebooted and paniced. It said "Cannot mount > root directory.." It seemed there was confusion of wd1 with wd2. > > Boot thinks the second HDD is `wd1', while kernel probes it as > `wd2'. My question is why kernel skips `wd1'? Quoting from > GENERIC... > > ---8<------8<------8<--- > controller wdc0 at isa? port "IO_WD1" bio irq 14 vector wdintr > disk wd0 at wdc0 drive 0 > disk wd1 at wdc0 drive 1 > ---8<------8<------8<--- wd*0* is your 400M drive (the Primary controller is wdc0 and it handles disks wd0 and wd1). wd2 is your 1.6G drive (the Secondary controller is wdc1 -- note wdC vs. wd -- and handles disks wd2 and wd3... skip down a few more lines in GENERIC and you'll see this second controller defined along with the drives it supports) Hope that clears it up... --don
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