Error while lzop vma extract via bash "no device mapping..."

[mabor]

We want to extract the qcow2 images from a vma.lzo dump.
Therefor we have to create an empty xxx.fifo file to pipe the lzop -d -c data.
The bash command looks like:
lzop -d -c vzdump-qemu-101-2016_03_08-02_10_02.vma.lzo|vma extract -v -r xxx.fifo - /var/lib/vz/test5

The output:
CFG: size: 467 name: qemu-server.conf
DEV: dev_id=1 size: 171798691840 devname: drive-virtio0
DEV: dev_id=2 size: 2147483648 devname: drive-virtio1
CTIME: Tue Mar 8 02:10:03 2016

** (process:27886): ERROR **: no device name mapping for drive-virtio0
Trace/breakpoint trap

Is there something we have to prepare befor extracting the vma dump?

Proxmox 4.1

 

[wolfgang]

Hi,

this is not that easy.
If you what to dump your data easily.
Restore the vm on a not used VMnumber like 9999999.
Then loop mount the disk image.