Hi, Can someone tell me where I need to select to enable 64bit when building from tarballs? Thanks Ian _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Ah that''s my problem. I installed Debian 3.1 from CD but it never asked if I wanted to install in 64bit? -----Original Message----- From: Philippe Vanhaesendonck [mailto:Philippe.Vanhaesendonck@topgame.be] Sent: 25 July 2007 15:40 To: Ian Tobin Subject: Re: [Xen-users] Install 64 bit Dom 0 Ian Tobin said:> Can someone tell me where I need to select to enable 64bit whenbuilding> from tarballs?If you build it on a 64bits OS, then it will compile for a 64bits environment. You can force it by using the XEN_TARGET_ARCH macro (see Config.mk) -- Philippe _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Ian Tobin said:> I installed Debian 3.1 from CD but it never asked if I wanted to install > in 64bit?To install Debian 64bits, you need a 64bits install CD -- it is not an install option... -- Philippe _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Ian Tobin said:> Got you! > > Is it possible to install XEN in 64 bit mode on the existing 32bit OS? > > IanThat will not work, I''m afraid... -- Phil. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Ok thanks for you help. Ill get building with 64bit CD. Thanks Ian -----Original Message----- From: Philippe Vanhaesendonck [mailto:xen@e-bulles.be] Sent: 25 July 2007 15:58 To: xen-users@lists.xensource.com Cc: Ian Tobin Subject: RE: [Xen-users] Install 64 bit Dom 0 Ian Tobin said:> Got you! > > Is it possible to install XEN in 64 bit mode on the existing 32bit OS? > > IanThat will not work, I''m afraid... -- Phil. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> > Is it possible to install XEN in 64 bit mode on the existing 32bit OS? > > > > Ian > > That will not work, I''m afraid...Well, actually, with Xen 3.1 I believe it''s possible to run a 32-bit domain 0 on top of 64-bit Xen and support both 32-bit and 64-bit guests. This is a newer, less tested feature but I''ve heard reports that it works. So if you can build a 32-bit PAE domain 0 kernel from the 3.1 sources, and a 64-bit Xen 3.1 then you should be able to run the system on your existing OS install. You could use an older kernel, but unless it''s from 3.1 it won''t support all the features the 3.1 platform provides. I suspect 32-bit PV guests will perform as well if not better than 64-bit PV guests on a 64-bit Xen, so that shouldn''t worry you too much. It may even be faster. Cheers, Mark -- Dave: Just a question. What use is a unicyle with no seat? And no pedals! Mark: To answer a question with a question: What use is a skateboard? Dave: Skateboards have wheels. Mark: My wheel has a wheel! _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users