Date: 12 Mar 1998 13:31:37 +0100 From: Benedikt Stockebrand <benedikt@devnull.ruhr.de> To: Karl Pielorz <kpielorz@tdx.co.uk> Cc: isp@FreeBSD.ORG Subject: Re: Fedup with Dumps & NC... Message-ID: <87afawrsye.fsf@devnull.ruhr.de> In-Reply-To: Karl Pielorz's message of "Wed, 04 Mar 1998 14:48:59 %2B0000" References: <34FD69DB.5B2D7C25@tdx.co.uk>
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Karl Pielorz <kpielorz@tdx.co.uk> writes:
> All I want to be able to do is the following:
>
>
> machine-a> dump tuaf - /usr2 | nc -w 20 machine-b 4000
>
> then on Machine B,
>
> machine-b> nc -l -w 20 -p 4000 >/dev/nrst0
>
>
> And backup Machine A onto Machine B, with as little fuss as possible, i.e. no
> amanda, no rmt etc...
>
> This 'appears' to work, until you try a restore - at which point you get
> messages such as:
>
> machine-b> restore tf /dev/nrst0
> Tape block size (1440) is not a multiple of dump block size (1024)
Are you using the same kind of OS on both machines? IIRC some use a
default 1k block size, others use different sizes.
What *might* help is to use
(local)# dump [...] | dd bs=1k | nc [...]
(remote)# nc [...] | dd bs=1k of=/dev/nrst0
to enforce block boundaries (but I wouldn't rely on it). And try the
-b option to dump, too.
My preferred method is to use ssh, however. I just do something like
# dump [...] | ssh remote cat \>/dev/nrst0
for backups. And ssh is one of the top choices for managing a remote
machine anyway.
BTW, your msg had these headers:
| Received: from caladan.tdx.co.uk (caladan.tdx.co.uk [195.188.177.4])
| by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id BAA12414
| for <isp@freebsd.org>; Wed, 11 Mar 1998 01:09:20 -0800 (PST)
| (envelope-from kpielorz@tdx.co.uk)
| Received: from tdx.co.uk (lorca-tx.tdx.co.uk [195.188.177.242])
| by caladan.tdx.co.uk (8.8.7/8.8.7) with ESMTP id OAA01142
| for <isp@freebsd.org>; Wed, 4 Mar 1998 14:48:59 GMT
| (envelope-from kpielorz@tdx.co.uk)
Either the date setting on lorca-tx is off by a couple days or your
mail system needs daaays to deliver its stuff.
So long,
Ben
--
Ben(edikt)? Stockebrand --- Un*x system administrator looking for a job
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