Date: Mon, 13 Mar 2006 09:40:35 -0600 From: Nathan Whitehorn <nathanw@uchicago.edu> To: freebsd-alpha@freebsd.org Subject: Re: DS10 6.0 new install hangs mounting root from ufs:/dev/ad0a Message-ID: <44159273.4070106@uchicago.edu> In-Reply-To: <20060313143622.GA97709@dragon.genyosha.net> References: <20060313040335.GA90811@dragon.genyosha.net> <20060313073840.GA17327@freebie.xs4all.nl> <20060313143622.GA97709@dragon.genyosha.net>
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Steve Rikli wrote: > On Mon, Mar 13, 2006 at 08:38:40AM +0100, Wilko Bulte wrote: > >> On Sun, Mar 12, 2006 at 08:03:35PM -0800, Steve Rikli wrote.. >> >>> Just finished an apparently uneventful install of 6.0 from CD >>> onto a DS10. >>> >>> The system hw is all healthy AFAI can tell -- it was previously >>> running OFS1 okay. >>> >>> The 6.0 install finshed and I rebooted -- last thing it ever >>> says on serial console is: >>> >>> ... >>> Waiting 5 seconds for SCSI devices to settle >>> Trying to mount root from ufs:/dev/ad0a >>> >>> and then nothing. No more <cr> or ^c or the like do anything. >>> >>> I've included as much of the serial console output as I could >>> capture. Suggestions/help/etc. very welcome. >>> >> ATA support appears to be hosed on Alpha, and from looking at it this >> has been a problem for a long time. I run my DS10s with SCSI and >> did not notice any problems on those. It is also not only ATA on DS10 >> that has problems, my 164SX also suffers from it. >> > > Which SCSI controller & drive do you use? > > I suspected ATA was simply out in the weeds, so I installed an isp > and then later an ahc -- using a Hitachi 36GB (DK32DJ-36MW) caused > a panic during the device probing while booting the 6.0 install CD. > > An 18GB Hitachi passed the probing, but the sysinstall never found > the drive to open for partitioning, even though the probing showed > it as da0. > I use an ahc (Adaptec 2940) without any problems whatsoever. I can even boot from it. As another poster noted, there are sometimes problems with disks without pre-existing disklabels or, worse, i386 MBR partitions, which can cause kernel panics on boot. NULLing the first 10 MB or so of the disk with dd seems to fix this. -Nathan
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