If you run kvm-qemu with e.g. --drive if=virtio,boot=on,file=foo.img then the guest must use the KVM virtio drivers to mount the root device. KVM exposes its virtio devices to the guest over PCI, requiring the guest to use the virtio_pci driver for device enumeration. The actual block device driver is virtio_blk. Currently, if you boot using virtio and then try and create new initrd, the initrd will include virtio_blk, but not virtio_net. virtio_blk is to virtio_pci as standard disk drives is to the core PCI code, and as virtio_blk is to lguest's device enumeration code and as xen_blkfront is to xenbus. Where virtio_pci differs from the others, though, is that it's a module and not built in.
Created attachment 303790 [details] 0001-mkinitrd-handle-KVM-virtio-devices.patch
(In reply to comment #0) > Currently, if you boot using virtio and then try and create new initrd, the > initrd will include virtio_blk, but not virtio_net. ... "but not virtio_pci" is what I meant
Applied and building for F9
Just to be sure, I tried a kvm virtio install without this fix and it failed to boot after the install because virtio_pci wasn't loaded Tried again with the fix and it works fine
Changing version to '9' as part of upcoming Fedora 9 GA. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
This message is a reminder that Fedora 9 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 9. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '9'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 9's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 9 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Long since fixed