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Date:      Wed, 11 Mar 1998 12:31:37 +1030
From:      Greg Lehey <grog@lemis.com>
To:        yyang <yyang@nla.gov.au>, freebsd-questions@FreeBSD.ORG
Subject:   Re: minor number too large ??
Message-ID:  <19980311123137.47111@freebie.lemis.com>
In-Reply-To: <3505A517.1626@nla.gov.au>; from yyang on Tue, Mar 10, 1998 at 12:39:51PM -0800
References:  <3505A517.1626@nla.gov.au>

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On Tue, 10 March 1998 at 12:39:51 -0800, yyang wrote:
> Any suggestions for the following error messages when I tried to backup
> FreeBSD (v 2.1.5) system ?
>
> /usr/bin/tar: dev/rwd0s4: minor number too large; not dumped
> /usr/bin/tar: dev/wd1s3: minor number too large; not dumped
> /usr/bin/tar: dev/rwd1s3: minor number too large; not dumped

The tar format allows for 16 bit device numbers: 8 bits major number
(driver number) and 8 bits minor number (information to the driver).

FreeBSD has 32 bit device numbers (8 bits major, as before, and 24
bits minor).  The devices mentioned are those whose first 16 bits are
non-0.  We can't change the tar format, because then it wouldn't be
compatible, so the only thing it can do is to skip them.  It's not too
serious a problem: you can remake all these devices with /dev/MAKEDEV.

Greg

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