From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,ee887b7593f7961b X-Google-Attributes: gid103376,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news4.google.com!feeder.news-service.com!newsfeed.freenet.de!newsfeed-0.progon.net!progon.net!news-zh.switch.ch!switch.ch!news.ip-plus.net!newsfeed.ip-plus.net!news.post.ch!not-for-mail From: Martin Krischik Newsgroups: comp.lang.ada Subject: Re: Ada OS based on Minix3 Date: Thu, 13 Nov 2008 07:48:22 +0100 Organization: Swisscom IP+ (post doesn't reflect views of Swisscom) Message-ID: <491bcdb6$1@news.post.ch> References: <4919431e$1@news.post.ch> <491967de$0$32371$4d3efbfe@news.sover.net> NNTP-Posting-Host: 194.41.146.1 Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: atlas.ip-plus.net 1226558906 4796 194.41.146.1 (13 Nov 2008 06:48:26 GMT) X-Complaints-To: abuse@ip-plus.net NNTP-Posting-Date: Thu, 13 Nov 2008 06:48:26 +0000 (UTC) User-Agent: Thunderbird 2.0.0.17 (Windows/20080914) In-Reply-To: <491967de$0$32371$4d3efbfe@news.sover.net> X-Original-NNTP-Posting-Host: w03duo.pnet.ch X-Original-Trace: 13 Nov 2008 07:48:22 +0100, w03duo.pnet.ch Xref: g2news2.google.com comp.lang.ada:8391 Date: 2008-11-13T07:48:22+01:00 List-Id: Peter C. Chapin schrieb: > Martin Krischik wrote: > >> Now, if I wanted to create an OS I would not target real hardware at >> all. At least not in the beginning. I would probably implement the OS >> inside a VMware virtual machine. > > What about targeting a hypervisor like Xen? If I understand correctly > (and I may not) that would separate the OS somewhat from the real > hardware and may help its portability in the long run. I knew that this question would come ;-) - The answer is simple: Xen is not available for Window and Mac OS X hosts - together they amount to 90% of all desktop OS. While Ada programmer are not like the average user and are more likely to use Linux shutting out Windows and Mac OS X would still shut out a lot of potential users and beta testers. And even on Linux it is not all that easy. I can install a VMware Player in no time on Linux but never quite succeeded in getting Xen to work. Even with SuSE Linux which comes with a Xen plug-in for Yast. So in short: Xen is not all that portable and would defeat the "quit install and try it out" objective. Regards Martin -- mailto://krischik@users.sourceforge.net Ada programming at: http://ada.krischik.com