Subject: Default $TAPE for mt/restore/dump/tar ?
To: None <tech-userlevel@NetBSD.ORG>
From: Luke Mewburn <firstname.lastname@example.org>
Date: 04/14/1997 12:08:46
I've been looking at the source for various utilities that manipulate
or write to tape devices, and noticed a few inconsitancies:
util definition where
---- ---------- -----
bin/mt "/dev/rst0" DEFTAPE in <sys/mtio.h>
bin/pax "/dev/rmtx" DEV_x in "tar.h", x is [014-8]
gnu/usr.bin/tar "/dev/rst0" DEF_AR_FILE in Makefile
sbin/dump "/dev/rmt8" _PATH_DEFTAPE in "pathnames.h"
sbin/restore "/dev/rmt8" _PATH_DEFTAPE in "pathnames.h"
usr.bin/eject "/dev/rst*" eject.c in various places
usr.bin/tcopy "/dev/rmt8" _PATH_DEFTAPE in "pathnames.h"
* the definition should probably be _PATH_DEFTAPE
* there should be only place for the definition; <paths.h>
* the default should probably refer to the most common type of
tape interface: "/dev/rst0"
I can't see any problems with doing this; can anyone else?
Now, for Controversy Corner: I would actually like to change the
default to "/dev/nrst0" - the non-rewinding-on-device-close device.
* why have the default for 'mt' being the rewinding device? It will
`undo' a head movement operation at the next request. Viz:
mt fsf 4
dump 0f /
will not DTRT if _PATH_DEFTAPE is the rewinding device
* we've changed defaults before, and I believe if documented, this
shouldn't be too bad