From owner-freebsd-questions@FreeBSD.ORG Mon Apr 7 06:59:28 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 15EE937B401 for ; Mon, 7 Apr 2003 06:59:28 -0700 (PDT) Received: from sccrmhc03.attbi.com (sccrmhc03.attbi.com [204.127.202.63]) by mx1.FreeBSD.org (Postfix) with ESMTP id 38B3C43FCB for ; Mon, 7 Apr 2003 06:59:27 -0700 (PDT) (envelope-from freebsd-questions-local@be-well.no-ip.com) Received: from be-well.ilk.org (lowellg.ne.client2.attbi.com[24.147.188.198]) by sccrmhc03.attbi.com (sccrmhc03) with ESMTP id <2003040713592600300mi3sbe>; Mon, 7 Apr 2003 13:59:26 +0000 Received: from be-well.ilk.org (lowellg.ne.client2.attbi.com [24.147.188.198] (may be forged)) by be-well.ilk.org (8.12.9/8.12.7) with ESMTP id h37DxPXf003401; Mon, 7 Apr 2003 09:59:25 -0400 (EDT) (envelope-from freebsd-questions-local@be-well.no-ip.com) Received: (from lowell@localhost) by be-well.ilk.org (8.12.9/8.12.6/Submit) id h37DxPuh003398; Mon, 7 Apr 2003 09:59:25 -0400 (EDT) X-Authentication-Warning: be-well.ilk.org: lowell set sender to freebsd-questions-local@be-well.ilk.org using -f Sender: lowell@be-well.no-ip.com To: freebsd-questions@freebsd.org, Christopher Turner References: <20030405145425.L29493@thought> From: Lowell Gilbert Date: 07 Apr 2003 09:59:25 -0400 In-Reply-To: <20030405145425.L29493@thought> Message-ID: <44vfxq76iq.fsf@be-well.ilk.org> Lines: 37 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: Re: USB Solid-state drive problems X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: freebsd-questions@freebsd.org List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Apr 2003 13:59:28 -0000 Christopher Turner writes: > I have a USB flash drive with 128MB. > > When it first recognizes it, i see this on the console: > > umass0: USB Solid state disk, rev 1.10/1.00, addr 2 > da0 at umass-sim0 bus 0 target 0 lun 0 > da0: <128MB HardDrive 1.11> Removable Direct Access SCSI-2 device > da0: 650KB/s transfers > da0: 126MB (258048 512 byte sectors: 64H 32S/T 126C) > > I can mount it with either of the following depending on the mood of the > box: > > "mount_msdos -l /dev/rda0s1 /mnt" > OR > "mount_msdos -l /dev/da0s1 /mnt" Those devices are identical (in the last few releases on both 4.x and 5.x), so it's not the device you're trying that makes the difference. > does anyone know why this thing is so flaky? Will it be improved? Will > sending my style of flash drive to the dev team help? Is 5.0 more stable > with this kind of stuff? Generally this kind of thing seems to be related to the standards compliance (or lack thereof) of the devices, but I don't really know in detail. Certainly quirks and so forth are added to the development tree on a pretty continuous basis. Updating to the latest code (you don't mention what you're running) might help. > Is there any way to reinitialize the usb bus(or whatever does the usd > detecting) so it will recognize the flash drive after i've removed it and > reinserted it? usbd(8), perhaps?