[Xen-users] can't mount LVM based vbd for domU

["James Miller" <jimm@xxxxxxxxxxxxxxx>]

Hello everyone,

I'm getting my feet wet with Xen 3.0.1 and I'm having trouble creating a
DomU which uses an LVM lv as the vbd.  I've had no problems spinning up
DomU's based on file images and on actual partitions.  I'm hoping I'm just
missing something simple.

I'm running XEN 3.0.1 -- Debian Stable/backports

Error message for 'xm create -c ./centOS-4.2_vm1.cfg
Using config file "centOS-4.2_vm1.cfg".
Error: Device 2049 (vbd) could not be connected.
Device /dev/VG1/vmvol1 is mounted in a guest domain,
and so cannot be mounted now.

'xm list'
Name                              ID Mem(MiB) VCPUs State  Time(s)
Domain-0                           0      512     1 r-----   457.6
CentOS_42_vm1                     12      512     1 --p---     0.0


Config file: 'cat centOS-4.2_vm1.cfg'
name = "CentOS_42_vm1"
memory = 512
kernel = "/boot/vmlinuz-2.6.12.6-xenU"
vif=[ ' ' ]
dhcp = "dhcp"
disk = [ 'phy:VG1/vmvol1,sda1,w','phy:VG1/vm_swap1,sda2,w' ]
root = "/dev/sda1 ro"

I don't have /dev/VG1/vmvol1 mounted anywhere
results of 'df  -h'
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1             7.5G  2.9G  4.7G  39% /
tmpfs                 257M     0  257M   0% /dev/shm

result of 'lvscan'
  ACTIVE            '/dev/VG1/swap' [4.00 GB] inherit
  ACTIVE            '/dev/VG1/vmvol1' [8.00 GB] inherit
  ACTIVE            '/dev/VG1/vm_swap1' [512.00 MB] inherit
  ACTIVE            '/dev/VG1/vm_images' [9.77 GB] inherit
  ACTIVE            '/dev/VG1/space' [9.77 GB] inherit

 --- Logical volume ---
  LV Name                /dev/VG1/vmvol1
  VG Name                VG1
  LV UUID                E9ky1Q-1ErH-Dfdj-XXXX-qDsb-bbPa-XXXXX
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                8.00 GB
  Current LE             2048
  Segments               1
  Allocation             inherit
  Read ahead sectors     0
  Block device           253:1

  --- Logical volume ---
  LV Name                /dev/VG1/vm_swap1
  VG Name                VG1
  LV UUID                RZL4zZ-seVf-Gi3u-0l3P-XXXX-6EIq-XXXXX
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                512.00 MB
  Current LE             128
  Segments               1
  Allocation             inherit
  Read ahead sectors     0
  Block device           253:2



Any help would be appreciated.

Thanks,
Jim


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