Problems creating OpenVZ container with ploop layout

[s4uliu5]

Hello,

 

for couple of years I've been using Funtoo as base system for OpenVZ virtualization. Everything is working great.

So far used only simfs layout. Decided to try ploop, but

 

# vzctl create 1409072 --ostemplate centos-7-x86_64-minimal --layout ploop --hostname demo --hostname demo

 

ended with error:

 

Creating image: /vz/private/1409072.tmp/root.hdd/root.hdd size=2306867K
Creating delta /vz/private/1409072.tmp/root.hdd/root.hdd bs=2048 size=4614144 sectors v2
Storing /vz/private/1409072.tmp/root.hdd/DiskDescriptor.xml
Opening delta /vz/private/1409072.tmp/root.hdd/root.hdd
Adding delta dev=/dev/ploop58790 img=/vz/private/1409072.tmp/root.hdd/root.hdd (rw)
Can't add image /vz/private/1409072.tmp/root.hdd/root.hdd: Invalid argument
Failed to create image: Can't add image /vz/private/1409072.tmp/root.hdd/root.hdd: Invalid argument [3]
Destroying container private area: /vz/private/1409072
Creation of container private area failed

/vz partition is ext4.

 

Tried different sys-kernel/openvz-rhel6-stable kernels (from personal overlay):

 

* 2.6.32-042stab084.26

* 2.6.32-042stab090.5

* 2.6.32-042stab093.4

 

with different vzctl versions:

 

* 4.6.1

* 4.7

* 4.7.2

 

every time got the same error.

 

What could be wrong?

 

Does anybody successfully use OpenVZ containers with ploop layout?

 

Any thoughts/help is appreciated.

[s4uliu5]

Found solution by myself. :)

 

Problem was gone after loading all required modules.

 

modprobe ploop
modprobe pfmt_ploop1
modprobe pfmt_raw
modprobe pio_direct

Before I have loaded only ploop.