[openstack-dev] [Openstack] [Nova] Havana virtio_blk | kvm, kernel panic on VM boot

2014-03-26 Thread saurabh agarwal
I have compiled a new linux kernel with CONFIG_VIRTIO_BLK=y. But it doesn't
boot and kernel panics. To kernel command line i tried passing
root=/dev/vda and root=/dev/vda1 but same kernel panic comes every time.
VIRTIO_NET was working fine when VIRTIO_BLK was not enabled and VM booted
up fine. But with virtio-blk i see the below kernel panic. Can someone
please suggest what could be going wrong?

VFS: Cannot open root device vda or unknown-block(253,0)^M
Please append a correct root= boot option; here are the available
partitions:^M
fd00 8388608 vda  driver: virtio_blk^M
  fd01 7340032 vda1
----^M

  fd02  512000 vda2 ----^M
  fd03  535552 vda3 ----^M
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(253,0)^M

Regards,
Saurabh
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Re: [openstack-dev] [Openstack] [Nova] Havana virtio_blk | kvm, kernel panic on VM boot

2014-03-26 Thread Ben Nemec
This is a development list and your question sounds like a usage one. 
Please try asking on the users list: 
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack


Thanks.

-Ben

On 03/26/2014 04:24 AM, saurabh agarwal wrote:

I have compiled a new linux kernel with CONFIG_VIRTIO_BLK=y. But it
doesn't boot and kernel panics. To kernel command line i tried passing
root=/dev/vda and root=/dev/vda1 but same kernel panic comes every time.
VIRTIO_NET was working fine when VIRTIO_BLK was not enabled and VM
booted up fine. But with virtio-blk i see the below kernel panic. Can
someone please suggest what could be going wrong?

VFS: Cannot open root device vda or unknown-block(253,0)^M
Please append a correct root= boot option; here are the available
partitions:^M
fd00 8388608 vda  driver: virtio_blk^M
   fd01 7340032 vda1 ----^M
   fd02  512000 vda2 ----^M
   fd03  535552 vda3 ----^M
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(253,0)^M

Regards,
Saurabh


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