On Sun, 2012-07-08 at 07:19 +0800, wdk@moriah wrote: > if I try and use qemu-386 it has limited cmd line options according to -h, > and barfs on any of the normal options such as -cdrom - hence my feeling its > missing a wrapper. > > thanks, might have to do git to see if its different. > BillK > > On 07/07/2012, at 22:32, walt <w41...@gmail.com> wrote: > > > On 07/07/2012 07:14 AM, walt wrote: > >> Qemu supplies two different binaries: one you can run as an unprivileged > >> user (usually named qemu-i386 or whatever) and another that needs special > >> privileges (usually named gemu-system-i386 or whatever). > > > > I just remembered that installing the git version actually does give you > > a binary named 'qemu' but I never understood how that relates to the other > > two binaries, so I've never used that one either :) > > Solved - might help others ...
Thanks Walt for the hints. Most of the gentoo/qemu guides are seriously out of date and semi-useless. You need certain kernel features enabled, otherwise qemu will just silently give you very limited set of options and basically wont run, and wont tell you why. Which options ... I just turned on everything with VM in it. You need the following in make.conf: QEMU_SOFTMMU_TARGETS="i386" QEMU_USER_TARGETS="i386" to build x86 only qemu-kvm has simple script to start it up: moriah qemu # cat `which qemu-kvm` #!/bin/sh exec /usr/bin/qemu-system-x86_64 --enable-kvm "$@" moriah qemu # Other qemu ebuilds dont install a similar script. The qemu-user ebuild installs static builds (or at least they have static in the name - why?) You need to run qemu-system-i386 to start the emulator. On a P3M I am using the app-emulation/qemu and app-emulation/kqemu ebuilds - not sure if I need kqemu so that needs testing when I get a guest installed. kqemu needs a user patch on 3.4.4 but builds and inserts ok once patched. The app-emulation/qemu-kvm installs but dies on a P3 when you try and run it - needs a cpu with the right VM facilities. Oh, and I installed from git to test ... and found it didnt have an uninstall. messy! Makes one appreciate ebuilds/gentoo and devs :) Part of my problem was using vmware and bochs/qemu for years and having legacy ideas on whats required. BillK
