[Xen-users] xen-ceph-rbd usage - "Permission Denied"

[John Cobley <john.cobley-xen@xxxxxxxxxxxx>]

Hi,

I'm trying to use the "xen-ceph-rbd" script found here - 
https://github.com/FlorianHeigl/xen-ceph-rbd .  Whenever I try to start 
my VM I get this error -
> libxl: cannot execute /etc/xen/scripts/block-rbd: Permission denied
> libxl: error: libxl_exec.c:118:libxl_report_child_exitstatus: 
> /etc/xen/scripts/block-rbd add [-1] exited with error status 255
> libxl: error: libxl_create.c:1054:domcreate_launch_dm: unable to add 
> disk devices
My Ceph cluster uses cephx for authentication so I've added a keyring 
entry to the conf file but I'm still seeing the error.
My VM conf file -
> #
> # Configuration file for the Xen instance debiantest, created
> # by xen-tools 4.5 on Tue Sep 22 10:58:36 2015.
> #
>
> #
> #  Kernel + memory size
> #
>
> kernel = '/boot/vmlinuz-3.16.0-4-amd64'
>
> #bootloader = '/usr/lib/xen-4.4/bin/pygrub'
>
> vcpus       = '2'
> memory      = '512'
>
>
> #
> #  Disk device(s).
> #
>
>
> #
> #  Physical volumes
> #
> root        = '/dev/xvda2 ro'
> #disk        = [
> #                'phy:/dev/rbd/rbd/debiantest,xvda1,w',
> #              ]
> disk = [ 'script=block-rbd,vdev=xvda2,target=rbd:debiantest' ]
> #
> #  Hostname
> #
> name        = 'debiantest'
>
> #
> #  Networking
> #
> dhcp        = 'dhcp'
> vif         = [ 'mac=00:16:3E:32:D9:A9' ]
>
> #
> #  Behaviour
> #
> on_poweroff = 'destroy'
> on_reboot   = 'restart'
> on_crash    = 'restart'
Can anyone point me in the right direction?

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