[Bug 913877] Re: lxc-create fails: cp: will not create hard link...

[Robie Basak]

It looks like debootstrap is leaving bind mounts around.

** Also affects: debootstrap (Ubuntu)
   Importance: Undecided
       Status: New

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Title:
  lxc-create fails: cp: will not create hard link...

Status in “debootstrap” package in Ubuntu:
  New
Status in “lxc” package in Ubuntu:
  Triaged

Bug description:
  Steps to reproduce:

  1. Start with a machine running a fresh Precise cloud image
  2. apt-get update && apt-get dist-upgrade
  3. apt-get install lxc
  4. cat > lxc.conf <<EOF
  lxc.network.type=veth
  lxc.network.link=test_network
  lxc.network.flags=up
  EOF
  5. lxc-create -n test_container -t ubuntu -f lxc.conf -- -r oneiric

  Command fails with:
  Download complete
  Copy /var/cache/lxc/oneiric/rootfs-amd64 to /var/lib/lxc/test_container/rootfs ... 
  Copying rootfs to /var/lib/lxc/test_container/rootfs ...cp: will not create hard link `/var/lib/lxc/test_container/rootfs/run/shm' to directory `/var/lib/lxc/test_container/rootfs/dev/shm'
  Failed to copy rootfs
  failed to install ubuntu oneiric
  failed to execute template 'ubuntu'

  Oddly, note the inode numbers below:

  ubuntu at precise-test2:/var/cache/lxc/oneiric/rootfs-amd64$ stat dev/shm run/shm
    File: `dev/shm'
    Size: 4096      	Blocks: 8          IO Block: 4096   directory
  Device: fd01h/64769d	Inode: 136776      Links: 2
  Access: (0755/drwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
  Access: 2012-01-09 16:24:07.142185754 +0000
  Modify: 2012-01-09 16:23:29.494185766 +0000
  Change: 2012-01-09 16:23:29.494185766 +0000
   Birth: -
    File: `run/shm'
    Size: 4096      	Blocks: 8          IO Block: 4096   directory
  Device: fd01h/64769d	Inode: 136776      Links: 2
  Access: (0755/drwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
  Access: 2012-01-09 16:24:07.142185754 +0000
  Modify: 2012-01-09 16:23:29.494185766 +0000
  Change: 2012-01-09 16:23:29.494185766 +0000
   Birth: -

  dev and run appear to be independent directories:

  ubuntu at precise-test2:/var/cache/lxc/oneiric/rootfs-amd64$ ls -ld dev run
  drwxr-xr-x 4 root root 4096 Jan  9 16:23 dev
  drwxr-xr-x 5 root root 4096 Jan  9 16:24 run
  ubuntu at precise-test2:/var/cache/lxc/oneiric/rootfs-amd64$ stat dev run
    File: `dev'
    Size: 4096      	Blocks: 8          IO Block: 4096   directory
  Device: fd01h/64769d	Inode: 131566      Links: 4
  Access: (0755/drwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
  Access: 2012-01-09 16:23:48.418185766 +0000
  Modify: 2012-01-09 16:23:29.494185766 +0000
  Change: 2012-01-09 16:23:29.494185766 +0000
   Birth: -
    File: `run'
    Size: 4096      	Blocks: 8          IO Block: 4096   directory
  Device: fd01h/64769d	Inode: 131572      Links: 5
  Access: (0755/drwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
  Access: 2012-01-09 16:24:08.302185766 +0000
  Modify: 2012-01-09 16:24:04.106185766 +0000
  Change: 2012-01-09 16:24:04.106185766 +0000
   Birth: -

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: lxc 0.7.5-3ubuntu4
  ProcVersionSignature: User Name 3.2.0-8.14-virtual 3.2.0
  Uname: Linux 3.2.0-8-virtual x86_64
  ApportVersion: 1.90-0ubuntu1
  Architecture: amd64
  Date: Mon Jan  9 16:38:10 2012
  Ec2AMI: ami-00000129
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  ProcEnviron:
   LC_COLLATE=C
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: lxc
  UpgradeStatus: No upgrade log present (probably fresh install)

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