Really old bug, no movement. Marking as invalid
** Changed in: nova
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/849926
Title:
LXC rootfs not correctly mounted before booting instance
Status in OpenStack Compute (Nova):
Invalid
Bug description:
At the point nova tries to start the LXC instance, there are no
directories except for proc, dev and tmp on the rootfs, causing the
LXC container to fail to start. If I manually set up an nbd device
from the qcow image, mount it and start the instance using virsh, it
boots correctly. This has worked in previous versions.
Based on past experience, when booting an LXC instance I would expect compute
to get a root image, create a qcow image from it, create an nbd device from the
qcow and mount the nbd as the instance rootfs, as seen in the below extract
from the log files from a previous working nova version:
Running cmd (subprocess): qemu-img create -f qcow2 -o
cluster_size=2M,backing_file=/var/lib/nova/instances/_base/da4b9237bacccdf19c0760cab7aec4a8359010b0
/var/lib/nova/instances/instance-00000003/disk
Running cmd (subprocess): sudo qemu-nbd -c /dev/nbd13
/var/lib/nova/instances/instance-00000003/disk
Running cmd (subprocess): sudo mount /dev/nbd13
/var/lib/nova/instances/instance-00000003//rootfs
instance instance-00000003: is running
In the version currently available in Ubuntu and the trunk ppa I see the
creation of the qcow and immediately after that the boot of the instance:
Running cmd (subprocess): qemu-img create -f qcow2 -o
cluster_size=2M,backing_file=/var/lib/nova/instances/_base/356a192b7913b04c54574d18c28d46e6395428ab
/var/lib/nova/instances/instance-00000001/disk
instance instance-00000001: is running
Last known working version: 2011.3~d4~20110814.1433-0ubuntu0ppa1~oneiric1
Not Working versions: 2011.3~rc~20110909.r1155-0ubuntu0ppa1~oneiric1 and
2012.1~e1~20110913.1567-0ubuntu0ppa1~oneiric2
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