Date: Thu, 21 Dec 2006 21:30:16 GMT From: mjacob@FreeBSD.org To: freebsd-bugs@FreeBSD.org Subject: Re: bin/106973: 'tar' cannot read own tape, but 'pax' can Message-ID: <200612212130.kBLLUG7U023086@freefall.freebsd.org>
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The following reply was made to PR bin/106973; it has been noted by GNATS.
From: mjacob@FreeBSD.org
To: Bernd Luevelsmeyer <bdluevel@heitec.net>
Cc: mjacob@FreeBSD.org, FreeBSD-gnats-submit@FreeBSD.org,
freebsd-bugs@FreeBSD.org
Subject: Re: bin/106973: 'tar' cannot read own tape, but 'pax' can
Date: Thu, 21 Dec 2006 11:48:02 -0800 (PST)
I'm on vacation at present, but trying to follow this. This particular
tape drive is unfamiliar to me. I would assume that it must be some kind
of fixed blocksize device.
Despite what you said, could you please try:
mt -f /dev/sa0 seteotmodel 1
cd /usr/include
tar cvfb /dev/sa0 1 . || tar tvfb /dev/sa0 1
mt -f /dev/sa0 rewind
tar cvfb /dev/sa0 2 . || tar tvfb /dev/sa0 2
> mjacob@freebsd.org wrote:
>>
>> Try using tar with a specified blocksize that's equal to the underlying
>> h/w blocksize on the tape.
>
> The tape's blocksize is 10 KB, which is tar's default anyway. I tried
> various other blocksizes nevertheless, to no avail; except an error in
> dmesg ("(sa0:ahc0:0:4:0): 10240-byte tape record bigger than supplied
> buffer") for small blocksizes.
>
> Greetings,
> Bernd
>
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