Date: Fri, 16 Aug 1996 22:12:06 +0200 (MET DST) From: J Wunsch <j@uriah.heep.sax.de> To: freebsd-hackers@freebsd.org (FreeBSD hackers) Subject: Re: File System on a tape Message-ID: <199608162012.WAA07032@uriah.heep.sax.de> In-Reply-To: <m0urQJ0-0008rKC@agora.rdrop.com> from Alan Batie at "Aug 16, 96 07:55:22 am"
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As Alan Batie wrote: > What's wrong with 'tar xvf /dev/rst0' for an installation? You never know the contents of a tar tape beforehand, you always have to read the entire tape first, and store the TOC somewhere else. Thus, the current installation reads the tape into a temporary location on the disk, and continues to act as in a UFS installation. Naturally, this wastes much space temporarily. A tape file system would give you a directory, so you could (in theory :) first have a look there, and decide which block number to go to. OTOH, compatible tape file systems can only be dumped off a little- endian 4.4BSD UFS file system image, while a compatible tar tape can probably be created on anything running at least V7 UNIX. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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