** Description changed: As shown in cloud-config syntax at [1], cloud-init allows the user to a name that will appear in the metadata service instead of a device name. For example, the user can specify: - - [ ephemeral0, /mnt, auto, "defaults,noexec" ] + - [ ephemeral0, /mnt, auto, "defaults,noexec" ] If the metadata service contains something like: - 'block-device-mapping': {'ami': 'sda1', - 'ephemeral0': 'sda2', - 'root': '/dev/sda1', - 'swap': 'sda3'}, + 'block-device-mapping': {'ami': 'sda1', + 'ephemeral0': 'sda2', + 'root': '/dev/sda1', + 'swap': 'sda3'}, Then an entry in /etc/fstab will be added for 'sda2'. There are 2 possibilities that the string 'sda2' will be wrong. a.) on ec2, we're using a -virtual kernel, or some kernel without a patch to make xen block devices show up as 'sdX' rather than 'xvdX'. Currently our -ec2 kernels have xen block devices as sdX, but this may change. b.) on eucalyptus, with virtio as root device and/or ebs. In this case, the metadata service will still likely have 'sdX' but the kernel devices would be named vdX. In either case, some trickery will have to be done to decide to rename. Really, this is just a general problem with the metadata service provided by the hypervisor believing it knows certain things about the OS that is running in it. -- [1] http://bazaar.launchpad.net/~cloud-init-dev/cloud-init/trunk/annotate/head%3A/doc/examples/cloud-config.txt ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: eucalyptus-nc 2.0~bzr1211-0ubuntu1 ProcVersionSignature: User Name 2.6.32-305.9-ec2 2.6.32.11+drm33.2 Uname: Linux 2.6.32-305-ec2 i686 Architecture: i386 Date: Thu Jul 29 03:06:03 2010 Ec2AMI: ami-e930db80 Ec2AMIManifest: ubuntu-images-testing-us/ubuntu-maverick-daily-i386-server-20100727.manifest.xml Ec2AvailabilityZone: us-east-1b Ec2InstanceType: m1.small Ec2Kernel: aki-407d9529 Ec2Ramdisk: unavailable ProcEnviron: - PATH=(custom, user) - LANG=en_US.UTF-8 - SHELL=/bin/bash + PATH=(custom, user) + LANG=en_US.UTF-8 + SHELL=/bin/bash SourcePackage: eucalyptus
-- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to cloud-init in Ubuntu. https://bugs.launchpad.net/bugs/611137 Title: cc_mounts may need to translate device names for xvda or virtio To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/611137/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs