Date: Sat, 23 Apr 2005 19:00:50 GMT From: Brian Candler <B.Candler@pobox.com> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/80256: /rescue/vi doesn't work without terminal database in /usr Message-ID: <200504231900.j3NJ0oDi090542@freefall.freebsd.org>
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The following reply was made to PR bin/80256; it has been noted by GNATS. From: Brian Candler <B.Candler@pobox.com> To: "Simon L. Nielsen" <simon@FreeBSD.org> Cc: FreeBSD-gnats-submit@FreeBSD.org Subject: Re: bin/80256: /rescue/vi doesn't work without terminal database in /usr Date: Sat, 23 Apr 2005 17:19:17 +0200 On Sat, Apr 23, 2005 at 04:04:59PM +0200, Simon L. Nielsen wrote: > This has been known from when rescue was introduced, see the rescue(7) > manual page: > > BUGS > Most of the rescue tools work even in a fairly crippled system. The most > egregious exception is the rescue version of vi(1), which currently > requires that /usr be mounted so that it can access the termcap(5) files. > Hopefully, a failsafe termcap(3) entry will eventually be added into the > ncurses(3) library, so that /rescue/vi can be used even in a system where > /usr cannot immediately be mounted. In the meantime, the rescue version > of the ed(1) editor can be used from /rescue/ed if you need to edit > files, but cannot mount /usr. Thanks, I hadn't come across that man page. I also see why /etc/termcap didn't work; it's currently just a symlink to /usr/share/misc/termcap I do note however from ncurses(3X): If the ncurses library has been configured with termcap support, ncurses will check for a terminal's description in termcap form if it is not available in the terminfo database. This suggests a very simple solution (untested): --- lib/libncurses/pathnames.h.orig Sat Apr 23 17:17:01 2005 +++ lib/libncurses/pathnames.h Sat Apr 23 17:17:13 2005 @@ -34,5 +34,5 @@ * $FreeBSD: src/lib/libncurses/pathnames.h,v 1.1 1999/08/30 07:57:50 peter Exp $ */ -#define _PATH_DEF ".termcap /usr/share/misc/termcap" +#define _PATH_DEF ".termcap /usr/share/misc/termcap /rescue/termcap" #define _PATH_DEF_SEC "/usr/share/misc/termcap" and then bundle a few termcap entries in /rescue/termcap. Is there any reason why that couldn't be done? Regards, Brian.
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