Date: Sat, 28 Apr 2007 11:33:15 -0400 From: Miles Nordin <carton@Ivy.NET> To: freebsd-sparc64@freebsd.org Subject: Re: Netbooting Sparc64+HD question (Boot problems resolved without netboot) Message-ID: <oqy7kc1pl0.fsf@castrovalva.Ivy.NET> In-Reply-To: <6d7d37410704280814i1eb053b6x281b714f9a4c3d09@mail.gmail.com> (Didrik Madheden's message of "Sat, 28 Apr 2007 17:14:21 %2B0200") References: <6d7d37410704280814i1eb053b6x281b714f9a4c3d09@mail.gmail.com>
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>>>>> "dm" == Didrik Madheden <didrik@kth.se> writes:
dm> Maybe I'll try on netbooting sometime again when I feel more
dm> confident.
yeah, I still don't know what was wrong. I guess I would try tcpdump
next.
>> atapci0: using PIO transfers above 137GB as workaround for
>> 48bit DMA access bug expect reduced performance
this is a hardware bug on the Ultra 5/10 that's CMD/Silicon Image's
fault. Sun never added a workaround to their driver---they just
refuse to ship the machines with >80GB. I didn't know the SunBlade
100 had the bug, too.
In theory, it means exactly what it says. In practice, I've found IDE
on Ultra 5/10 is so crappy and such a time-sink that I avoid it like
the plague. On FreeBSD/NetBSD I use SCSI or netbooting, and on
Solaris I use SCSI, FireWire with Oxford 911 firewire cases only, and
the iSCSI initiator to IDE targets in i386 boxes. Each of those has
its own problems. (respectively: expense, expense and smartctl
doesn't work, and kernel panics when you unplug the network cable.)
In general I've had so many small problems with IDE on not-i386: I
have some PCI card that will work at Ultra100 speed in NetBSD/i386,
but in NetBSD/macppc it only works at Ultra33. Some cards don't work
right unless the chip is initialized by their secret proprietary
PeeCee BIOS. The problems never get fixed or explained. I don't know
if there is something about the chips that assumes i386 or what.
Reliable storage on noti386 has been a major frustration for me, so I
guess you'll have to try it and see. good luck. :/
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