From owner-freebsd-current Sun Nov 15 15:38:22 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id PAA17697 for freebsd-current-outgoing; Sun, 15 Nov 1998 15:38:22 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from smtp01.primenet.com (smtp01.primenet.com [206.165.6.131]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id PAA17689 for ; Sun, 15 Nov 1998 15:38:20 -0800 (PST) (envelope-from tlambert@usr05.primenet.com) Received: (from daemon@localhost) by smtp01.primenet.com (8.8.8/8.8.8) id QAA06003; Sun, 15 Nov 1998 16:37:45 -0700 (MST) Received: from usr05.primenet.com(206.165.6.205) via SMTP by smtp01.primenet.com, id smtpd005991; Sun Nov 15 16:37:39 1998 Received: (from tlambert@localhost) by usr05.primenet.com (8.8.5/8.8.5) id QAA03773; Sun, 15 Nov 1998 16:37:33 -0700 (MST) From: Terry Lambert Message-Id: <199811152337.QAA03773@usr05.primenet.com> Subject: Re: SparQ Drive and 3.0 upgrade To: james@westongold.com (James Mansion) Date: Sun, 15 Nov 1998 23:37:32 +0000 (GMT) Cc: tom@uniserve.com, mike@smith.net.au, sporkl@ix.netcom.com, freebsd-current@FreeBSD.ORG In-Reply-To: <32BABEF63EAED111B2C5204C4F4F50201810@WGP01> from "James Mansion" at Nov 9, 98 08:51:30 am X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > Out of interest, is there a 'recommended' high-capacity > removable device that can be used to boot different OSs on > a single PC? > > Jazz??? I use Jaz drives successfully with many OS's. Note that there is a bug with the Windows 95/98/NT TSD (Type Specific Driver) such that these operating systems have trouble paging to removable devices. Specifically, the PCI bus caching requires the code to do an in* after and out* to flush the bus cache, and the TSD that Microsoft provides doesn't do this. I found this out after installing Windows 95 and NT on JAZ cartridges, and then having problems installing Visual InterDev (their full "professional" developement tools suite) and seeing very odd behaviour trying to install Visual SourceSafe (the revision control system) and Visual J++. Eventually they refunded my support incident when I located the assembly code error in their driver (using WinICE) and pointed it out to them. FreeBSD needs something like WinICE... Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message