Unable to reinstall OpenVZ VPS on SolusVM localhost node: Unable to find ostemplate

Symptoms

• Unable to reinstall a container on localhost in Virtual Servers > VPS > Reinstall - reinstallation is shown as completed, however, the container is not running on the server.

• The following message can be found in /var/log/vzctl.log:

  CONFIG_TEXT: Opening delta /vz/private/VEID/root.hdd/root.hds
  vzctl : CT VEID : Error: Unable to find ostemplate: 1
  vzctl : CT VEID : Destroying Container private area: /vz/private/VEID
  vzctl : CT VEID : The ploop image /vz/private/VEID/root.hdd has been successfully unregistered

• On attempt to enter this container, the following error occurs:
  

  # vzctl enter 101
  enter into CT 101 failed
  Unable to open pty: No such file or directory

• It is possible to reinstall a newly created VPS using the Client area:
  

Cause

Bug #SVM-1831 that is planned to be fixed in future SolusVM versions.

Resolution

Until the fix becomes available use the reinstall feature from the client area:

1. Log in SolusVM administrator web interface.

2. Log in as a client in Virtual Servers > VPS > login as client.

3. Reinstall the container in Affected VPA > Manage > Reinstall.

Warning: it it essential to completely re-create all VPS that has been already reinstalled using admin area as after that even client area reinstall feature will not be working.

Additionally, container can be re-installed from command line console using OpenVZ native utilities:

1. Connect to the SolusVM Master via SSH
2. Stop the container

   # vzctl stop CTID

3. Re-install OS

   # vzctl reinstall <CTID> --ostemplate <template_name>

   where <CTID> should be replaced with actual VPS CT ID and <template_name> should be replaced with the template name without ".tar.gz" part.

Example

CTID - 101
template_name - centos-7-x86_64-minimal

# vzctl stop 101
# vzctl reinstall 101 --ostemplate centos-7-x86_64-minimal