From owner-freebsd-current Sun May 7 18: 1: 2 2000 Delivered-To: freebsd-current@freebsd.org Received: from freebie.lemis.com (freebie.lemis.com [192.109.197.137]) by hub.freebsd.org (Postfix) with ESMTP id DCE6337BB3F; Sun, 7 May 2000 18:00:54 -0700 (PDT) (envelope-from grog@freebie.lemis.com) Received: (from grog@localhost) by freebie.lemis.com (8.9.3/8.9.0) id KAA63171; Mon, 8 May 2000 10:30:52 +0930 (CST) Date: Mon, 8 May 2000 10:30:52 +0930 From: Greg Lehey To: Mike Smith Cc: Christian Weisgerber , freebsd-current@FreeBSD.ORG Subject: Re: Undocumented tape devices in pax(1) Message-ID: <20000508103052.H61921@freebie.lemis.com> References: <8f4s5f$1nfa$1@bigeye.rhein-neckar.de> <200005072348.QAA12373@mass.cdrom.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0pre2i In-Reply-To: <200005072348.QAA12373@mass.cdrom.com> Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.lemis.com/~grog X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Sunday, 7 May 2000 at 16:48:36 -0700, Mike Smith wrote: >> Mike Smith wrote: >> >>> The 'r' prefix for tape devices is entirely unrelated to the 'r' prefix >>> for disk devices. >> >> I'd like to see some backup for this assertion. Historically, BSD >> (up to 4.4) used to have >> >> mt block device, rewinding >> nmt block device, non-rewinding >> rmt character device, rewinding >> nrmt character device, non-rewinding >> >> which leaves little room to doubt. > > Interesting. I've never encountered a tape device to which the buffer > cache was applicable, except for the mythical SunOS swap-to-tape story, > and the 'r' has always been "rewind" for as long as I can remember. I suspect that's an assumption on your part. I think we've come up with enough man pages to support naddy's statement. > We haven't made non-'r' devices since MAKEDEV rev 1.5. For good reasons :-) Greg -- Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message