Date: Wed, 14 Jun 2000 00:28:29 -0400 (EDT) From: Ryan Turner <ryan@workstation.dhs.org> To: Andrew Reilly <areilly@nsw.bigpond.net.au> Cc: freebsd-stable@freebsd.org Subject: Re: 2048 byte media Message-ID: <Pine.BSF.4.21.0006140021400.684-100000@workstation.dhs.org> In-Reply-To: <20000614084825.A51585@gurney.reilly.home>
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Thanks for the information. It looks like I am trying to do the same thing as you with a Fujitsu 640M MO drive. I am still having a little bit of trouble getting it to work. I have been using FreeBSD for a while but have never had to deal with removeable media before this (always used /stand/sysinstall). I was hoping you could tell me what steps you took to get it working. I have added the disktab entrys you suggested but have been unable to get fdisk/disklabel to work. Ryan Turner ryturner@vt.edu On Wed, 14 Jun 2000, Andrew Reilly wrote: > On Tue, Jun 13, 2000 at 01:23:06AM -0400, Ryan Turner wrote: > > Is 2048 byte media supported? The last time I tried using it was 2.2.8 > > I currently have to use a windows box to access it. If I could use > > it on freebsd I could finally get rid of windows. > > It's "just worked" under -STABLE since whenever the "da" driver > replaced the "sd" one, whenever that was. I'm on 4.0-STABLE > now, and do nightly backups to a Fujitsu 640M MO drive. > > >From memory, disklabel or the kernel or the combination of the > two aren't happy (or weren't the last time I tried it) to use > the "auto" argument. I've always had to give it a disktab entry, > and I use one of these: > > mo640|F640|dangerously dedicated Fuj R640:\ > :ty=removable:dt=SCSI:rm=#3600:\ > :se#2048:nc#151:nt#64:ns#32:sc#2048:su#309247:\ > :pc#309247:oc#0:bc#8192:fc#2048: > > R640|fdisk sliced Fujitsu R640:\ > :ty=removable:dt=SCSI:rm=#3600:\ > :se#2048:nc#151:nt#64:ns#32:sc#2048:su#309216:\ > :pc#309216:oc#0:bc#8192:fc#2048: > > Actually, I think that I always fdisk and label a partition > manually, and then use the sliced version these days. The > dedicated one might not work any more. > > While I'm rambling about experiences with MO drives, I should > mention that I only leave this drive mounted long enough to do > the backup. I found that if I left it mounted continuously, > then at some random time it would stop talking to the SCSI > system (lots of "retry" "media fault" type messages in the > logs, and no access through the file system). Sorry for such > a vague report, but this hasn't happened for a very long time > now. I suspect that it would heat up and not recalibrate > properly, but I'm hardly knowledgeable enough to make that sort > of determination. > > -- > Andrew > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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