Subject: Re: Bug? Help w/ wd*/wt*
To: Brian C. Grayson <email@example.com>
From: Jim Rees <firstname.lastname@example.org>
Date: 09/20/1996 09:50:11
I've got a _big_ problem. I finally got an old Archive
tape working on my i386 system at home, running NetBSD-i386
You have my sympathy.
You would not normally use the block device on a tape drive. The raw device
is much faster and doesn't thrash your disk block cache. I suspect that is
why no one has caught this conflict before you.
If you really overwrote the first 30 MB of your file system, I think it's
hopeless. That's where all the important stuff is.
For jumpers, you might check the UM Apollo Archive. Old Apollo computers
used an Archive qic controller, but I don't know the model number. The UM
Apollo Archive is at http://pisa.citi.umich.edu/.
I don't know enough about device drivers to
be _sure_ that conflicts are a bad thing, but if
conflicts were okay, we could just make everything be
major 0, minor 0!
I once made such a system by accident, using the wrong version of tar to
restore a root file system. Interestingly enough it actually ran, but
exhibited all kinds of strange behavior.