Date: Wed, 16 Jun 1999 18:11:46 -0700 From: Dave Carmean <dlc@silcom.com> To: freebsd-questions@freebsd.org Subject: (long) Simult. 2.2.5 --> 3.1 upgrade and SCSI disk swap Message-ID: <19990616181145.C6633@silcom.com>
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Greetings,
I've been having some trouble trying to upgrade my old 2.2.5 system
to 3.1, and am looking for tips.
The system is a 1996-vintage P5-150, with win95 on the two IDE drives,
and FreeBSD 2.2.5 on sd0. I didn't install a boot manager, and my
BIOS (AMI) doesn't speak SCSI, so I boot to FreeBSD from a floppy.
1/2 of sd0 is FreeBSD, the other is a Win95 compressed volume. This
drive is now full, besides being flaky, so my idea was to dup my
FreeBSD install onto a new, larger SCSI disk, and then upgrade on
that copy. Of course, since it's a different geometry, I can't
just dd the whole thing.
Problem is: I labeled the new disk, mounted it, and used tar through
a pipe to copy /, /var, and /usr over. It booted fine from the new
disk, but the (Cheapbytes) 3.1 sysinstall upgrade did not see this disk!
Is this because of the SCSI device nomenclature change, sd --> da ?
After that failure, I did a fresh basic (Novice) 3.1 install to the
new drive, hoping to use tar or dd to then copy the old system and try
the upgrade again. But I can't directly get to rsd1s1{a,e,f,g} from
2.2.5 now, because of the new device naming.
So I'm using dd and hd to look at the bits and figure out if I can use
skip and seek offsets with dd to perform the copy, but when I think
about it, there's /got/ to be a better/easier way.
What did I miss?
Thanks.
P.S.: of what use is scsiformat(8) in this scenario? When starting over,
particularly to examine the bits directly, I just did a 'dd if=/dev/zero \
of=/dev/rsd1' to clobber the thing. scsiformat(8) operates at a lower
level than this, does it not?
--
David Carmean <dlc@silcom.com>
PGP fingerprint = B1 57 EB A8 1D B9 87 86 5F 5C 51 A4 F2 5E ED FD
My God, it's full of Cars!
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