On Sun, Dec 20, 2015 at 06:45:40PM -0600, Dennis Gilmore wrote: > On Friday, December 18, 2015 05:26:01 PM Brian C. Lane wrote: > > I'm considering switching lmc to use qemu directly instead of > > virt-install+libvirtd. > > > > Currently lmc can use virt-install to create the full range of supported > > images. But this doesn't work when running inside mock, which is used by > > Fedora releng's koji system. > > > > It also supports the --no-virt mode which runs anaconda directly in the > > same environment as lmc. The benefit is less things to setup > > and it works inside mock. But the drawback is that it uses device-mapper > > for installing to a partitioned disk image, and device-mapper doesn't > > work inside mock. So when running in mock you can only create a live iso > > or a filesystem image, not anything that needs a partitioned disk. > > > > I've been doing some experimenting and it ends up that qemu works inside > > mock. > > > > Switching to qemu (with optional auto-detection of when it could use > > qemu-kvm to speed things up) would simplify the code and allow it to > > create all the image types no matter where it is run from. It is also > > possible (I haven't tried this yet) that it could be used to create > > cross-arch images as well, since qemu has a wide range of supported > > arches. > > Would not be opposed to the change, it should work on platforms where we have > no hardware virt capability. We (releng) are reaching out to the lvm team to > see what can be done to make device-mapper work in a chroot, if it is > possible. > > Switching to using qemu would require lmc to learn a lot of details about > running vms for different arches. But it would enable making images for non > native arches as the commands are mostly the same. True, I'd encapsulate all that in a way that would make it easy to extend or modify. I think the ability to make images for other arches would be a big plus, even if it is a bit slow. > > To use kvm would we need to bind mount /dev/kvm into the chroot? I haven't tried that yet, but at a minimum, yes. I'm not sure what else is needed to make qemu-kvm work. -- Brian C. Lane | Anaconda Team | IRC: bcl #anaconda | Port Orchard, WA (PST8PDT) _______________________________________________ Anaconda-devel-list mailing list Anaconda-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/anaconda-devel-list
