From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Fri, 30 Dec 2005 23:22:27 -0500
From: Serge Gagnon <serge.gagnon@b2b2c.ca>
Subject: Re: [9fans] plan9port venti FreeBSD
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To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
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On Fri, 30 Dec 2005 14:40:53 -0500
Russ Cox <rsc@swtch.com> wrote:

> > I can't run fmtisect or fmtarenas directly on partition without this
> > error:
> >
> > ; sudo /usr/local/plan9/bin/venti/fmtarenas -b 8192
> > arenas0. /dev/ad2:0-10G
> > err 0: can't determine size of
> > partition /dev/ad2 /usr/local/plan9/bin/venti/fmtarenas: can't open
> > partition /dev/ad2:0-10G: can't determine size of partition /dev/ad2
> > [status 1] ;
> 
> ls -l /dev/ad2 and look at the major device number.
> There is a list in src/lib9/_p9dir.c and maybe it is missing.

It seems that the major device number have change from FreeBSD 4.X to
5.X and from 5.X to 6.X . read devfs(5) and mknod(8) in the FreeBSD man.

I tried it on FreeBSD 5.4 with this modification:

#if defined(__FreeBSD__) || defined(__OpenBSD__)
#include <sys/disklabel.h>
#include <sys/ioctl.h>
#if (__FreeBSD_version < 500000) || defined(__OpenBSD__)
static int diskdev[] = {
	151,	/* aacd */
	116,	/* ad */
	157,	/* ar */
	118,	/* afd */
	133,	/* amrd */
	13,	/* da */
	102,	/* fla */
	109,	/* idad */
	95,	/* md */
	131,	/* mlxd */
	168,	/* pst */
	147,	/* twed */
	43,	/* vn */
	3,	/* wd */
	87,	/* wfd */
};
#endif
#if (__FreeBSD_version  >= 500000) && (__FreeBSD_version < 600000)
static int diskdev[] = {
	151,	/* aacd */
	4,	/* ad */
	157,	/* ar */
	118,	/* afd */
	133,	/* amrd */
	13,	/* da */
	102,	/* fla */
	109,	/* idad */
	95,	/* md */
	131,	/* mlxd */
	168,	/* pst */
	147,	/* twed */
	43,	/* vn */
	3,	/* wd */
	87,	/* wfd */
};
#endif
#if (__FreeBSD_version >= 600000)
static int diskdev[] = {
	151,	/* aacd */
	0,	/* ad */
	157,	/* ar */
	118,	/* afd */
	133,	/* amrd */
	13,	/* da */
	102,	/* fla */
	109,	/* idad */
	95,	/* md */
	131,	/* mlxd */
	168,	/* pst */
	147,	/* twed */
	43,	/* vn */
	3,	/* wd */
	87,	/* wfd */
};
#endif

I also made a little modification of isdisk(struct stat *st) just to
see what happened:

; -
sudo /usr/local/plan9/bin/venti/fmtarenas -b 8192 arenas0. /dev/ad2:0-10

diskdev[0] = 151
dev = 4
No Match: diskdev[0] != dev

diskdev[1] = 4
dev = 4
Match: diskdev[1] == dev
Return 1

err 0: can't determine size of partition /dev/ad2
/usr/local/plan9/bin/venti/fmtarenas: can't open
partition /dev/ad2:0-10: can't determine size of partition /dev/ad2
[status 1] 
; 

I have just change the value of "ad" for FreeBSD 5 and 6 because i
don't know where i should find these value for the other device.

-- 
GAGNON serge <serge.gagnon@b2b2c.ca>
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