[CentOS-devel] Booting CentOS 8 in a VM - can't find the disk

Dominique Martinet

dominique.martinet at cea.fr
Wed Sep 25 16:09:28 UTC 2019

(Giving a bit back since I asked a question :p)

Richard W.M. Jones wrote on Wed, Sep 25, 2019 at 04:46:40PM +0100:
> I'm trying to boot CentOS 8 in a VM using my usual kickstart and
> virt-install recipes.  Dracut fails in a way that indicates it cannot
> find the install disk:
> [    4.984555] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready
> [    4.985509] 8021q: adding VLAN 0 to HW filter on device enp1s0
> [    5.599558] IPv6: ADDRCONF(NETDEV_CHANGE): enp1s0: link becomes ready
> [    7.058879] dracut-initqueue[926]: RTNETLINK answers: File exists
> [  134.439929] dracut-initqueue[926]: Warning: dracut-initqueue timeout - starting timeout scripts
> [  134.969517] dracut-initqueue[926]: Warning: dracut-initqueue timeout - starting timeout scripts
> [  135.488283] dracut-initqueue[926]: Warning: dracut-initqueue timeout - starting timeout scripts
> (repeated endlessly until it drops into the emergency shell)
> The kernel sees the virtio-blk device, the kmod is loaded, and
> /dev/vda exists ...
> So I don't really know.  Can anyone see my mistake?

Network failed to initialize somehow?
I had a similar lack of messages when I failed my qemu network params
and no interface existed.

Once you have an emergency shell 'journalctl' might have more useful
informations; I noticed I had no network right away in my case... I
could install a centos 8 earlier today with the following command and
manually answering questions (this is before kickstart, so your
kickstart will probably work anyway) :

qemu-system-x86_64 -machine type=pc,accel=kvm -cpu host -hda c8.img
 -m 30G -netdev user,id=n1 -device virtio-net,netdev=n1
 -device virtio-rng-pci -nographic -serial mon:stdio -kernel vmlinuz
 -initrd initrd.img -append 'console=ttyS0,115200 ksdevice=bootif text
 inst.repo=<link to some mirror>/8/BaseOS/x86_64/os'

where the vmlinuz and initrd.img came from BaseOS/x86_64/os/images/pxeboot/

(I'm not using any libvirt tool, so no idea what they might have done
wrong -- the network setup should be basic enough to not fail nor should
it pick an incorrect kernel/initrd so it's odd)


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