On Tue, Oct 05, 2010 at 11:07:15PM +0200, Petter Reinholdtsen wrote: > affects 599200 qemu-kvm > thanks > > [Lennart Sorensen] > > The 'lm' flag means this system has 64bit support. If in fact it > > doesn't, then the VM is broken. The installer did the right thing > > based on the CPU feature flags. > > Assuming this is true, I suggest two things are done to make sure d-i > work on 32-bits kvm guests on a lenny based kvm host. > > (1) base-installer is changed to detect 32-bits kvms and to not > propose amd64 kernels in this situation. Not quite sure how to > detect 32-bit kvms. > > (2) a bug is repoted against some kvm related package, to try to get > it to stop listing the lm CPU flag for 32-bit kvm guests. Not > quite sure which package it should be reported against. Perhaps > qemu-kvm? > > I've asked the kvm maintainer to provide input in this bug, to see if > we can figure out a good way to solve it.
I suspect if you run kvm with the -cpu option you can specify what you desire. I believe the default is to simply match whatever the host has, so if the host has a 64bit cpu, then the guest will too. # kvm -cpu ? x86 qemu64 x86 phenom x86 core2duo x86 kvm64 x86 qemu32 x86 coreduo x86 486 x86 pentium x86 pentium2 x86 pentium3 x86 athlon x86 n270 So if you say you want a pentium3, then you should not have any 64bit support. The coreduo probably won't either. I think the first 4 have 64bit support and the rest do not. -- Len Sorensen -- To UNSUBSCRIBE, email to debian-boot-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20101005213920.gd12...@caffeine.csclub.uwaterloo.ca
