Date: Sun, 07 May 2000 16:48:36 -0700 From: Mike Smith <msmith@freebsd.org> To: naddy@mips.inka.de (Christian Weisgerber) Cc: freebsd-current@freebsd.org Subject: Re: Undocumented tape devices in pax(1) Message-ID: <200005072348.QAA12373@mass.cdrom.com> In-Reply-To: Your message of "08 May 2000 00:53:35 %2B0200." <8f4s5f$1nfa$1@bigeye.rhein-neckar.de>
next in thread | previous in thread | raw e-mail | index | archive | help
> Mike Smith <msmith@FreeBSD.ORG> 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. We haven't made non-'r' devices since MAKEDEV rev 1.5. -- \\ Give a man a fish, and you feed him for a day. \\ Mike Smith \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200005072348.QAA12373>