meino.cra...@gmx.de wrote: > Alan McKinnon <alan.mckin...@gmail.com> [17-01-15 14:08]: > > On 15/01/2017 14:52, meino.cra...@gmx.de wrote: > > > Alan McKinnon <alan.mckin...@gmail.com> [17-01-15 13:40]: > > >> On 15/01/2017 13:49, meino.cra...@gmx.de wrote: > > >>> Hi, > > >>> > > >>> for the purpose of online banking I want to install Linux on an > > >>> USB-stick. > > >>> > > >>> All attempts currently fail because the guest OS does not see > > >>> any internet connection / eth0 > > >>> > > >>> I tried this without success: > > >>> sudo qemu-system-x86_64 -cpu core2duo -cdrom <isoimage> -boot > > >>> order=d -usbdevice host:<my usbsick> -m 1G --enable-kvm > > >>> -machine q35,accel=kvm -device intel-iommu -netdev > > >>> user,id=mynet0,net=192.168.178.0/24,dhcpstart=192.168.178.9 > > >>> > > >>> The image boots successfully...but withoyt any connection to the > > >>> internet. > > >>> > > >>> How can I acchieve what I want? > > >> > > >> > > >> When you log into the guest OS and look at the network config it > > >> does have, what do you see? > > >> > > >> What interfaces, routes, etc etc does it actually have once > > >> booted? > > >> > > >> > > >> -- > > >> Alan McKinnon > > >> alan.mckin...@gmail.com > > >> > > >> > > > > > > One step back, Alan... > > > > > > I am booting an install-disk.iso, which needs a network to access > > > the packages from a server, which I want to be part of my > > > usbstick. > > > > > > The install-disk.iso should be prepared/configured to access the > > > internet (everything else would be at least an error/bug...)... > > > > > > So I assume, that qemu is not providing that... > > > > Sounds reasonable. I asked what I did because it looks like you know > > what you want, but aren't getting it. So the obvious troubleshooting > > step is to see what you did get :-) > > > > I assume this guest is something you can log into after it boots? > > It has some kind of console login functionality?? If say ssh is the > > only way you can get access then you have a chicken and egg > > problem, something you'd ideally like to avoid > > > > > > -- > > Alan McKinnon > > alan.mckin...@gmail.com > > > > > > There are neither chicken nor eggs....and especially there is no > internet connection .... :)))) > > The iso boots fine and I can chroot into my base installation of my > usbstick. > Since online banking from the command line is somehow steam-punk-style > I wanted a graphical interface (to name onlu one example). > But I cannot pull the according package from the providing server, > since.....no internet. > And there they were...my three problems.... ;) > > But in the meanwhile I found a way to tell qemu what I want. > > Now I boot my iso like this > sudo qemu-system-x86_64 -cpu core2duo -cdrom <iso-image> -boot > order=d -usbdevice host:<usbstick> -m 1G --enable-kvm -machine > q35,accel=kvm -device intel-iommu -net nic -net user > > That's it -- but I am open for suggestions to improve this command -- > for execution speed inside qemu for example... ;)
On my system (AMD Phenom II X4 965) "-cpu host" together with "-smp 4" gives the best results on processing speed. For graphics output I use "-display gtk" and "-vga vmware". This is on my machine the fastest setting and gives me also the highest screen resolution. I also use the "hostfwd" option, so I can establish a ssh connection to the VM with the following command: ssh -p 2222 <user>@localhost That's the whole command that I use to start a VM: qemu-system-x86_64 -machine accel=kvm -cpu host -smp 4 -m 4096 -enable-kvm -name banking-vm -net nic,model=virtio -net user,hostfwd=tcp::2222-:22 -localtime -hda /home/<user>/qemu/banking-vm.qcow2 -display gtk -vga vmware I don't know if this is optimal, but after many tests I found that it gives me the best performance on my system. -- Regards wabe
