OpenVZ Migration Hostnode Containers from Centos 5 to Centos 6 -

OpenVZ Migration Hostnode Containers from Centos 5 to Centos 6

migrating from an old OpenVZ (Centos 5) to new OpenVZ (Centos 6)
Also if migrating from 32-bit HN to 64-bit your RAM will probably be much bigger than it should be!
16x bigger

eg. 32bit HN:

             total       used       free     shared    buffers     cached
Mem:           256         16        239          0          0          0
-/+ buffers/cache:         16        239
Swap:            0          0          0


eg. 64bit HN with same config:


free -m
             total       used       free     shared    buffers     cached
Mem:          3906         42       3863          0          0         33
-/+ buffers/cache:          9       3897
Swap:        28614          0      28614



Error: required UB parameter swappages not set

 vzctl start 27000
Starting container...
Error: required UB parameter swappages not set
Saving VE layout 'simfs' to the VE config file
CT configuration saved to /etc/vz/conf/27000.conf
[root@server18 conf]# vzlist
Container(s) not found
[root@server18 conf]# vzctl start 27000
Starting container...
Error: required UB parameter swappages not set

vzctl set 27000 --swappages 0:unlimited --save

 vzctl set 27000 --swappages 0:unlimited --save
CT configuration saved to /etc/vz/conf/27000.conf
[root@server18 conf]# vzctl start 27000
Starting container...
stat(/vz/root/27000): No such file or directory
stat(/vz/root/27000): No such file or directory
stat(/vz/root/27000): No such file or directory
Initializing quota ...
Container is mounted
Adding IP address(es): 98.158.135.57 98.158.135.58
Setting CPU units: 1000
Setting devices
Container start in progress...


  • How To Create Apache htpasswd file
  • possible SYN flooding on ctid 42131, port 80. Sending cookies. - Solution
  • Linux last command show login by IP instead of hostname
  • Install Windows From a Linux TFTP Server instead of using WDS Solution
  • How To Secure Samba NMBD/SMBD to bind to a specific IP address
  • tftp: client does not accept options - solution if you are using UEFI PXEBoot disable it!
  • Linux how to view video card make and exact model
  • Authentication refused: bad ownership or modes for directory /home/user SSH Public Key Authentication Failed Solution
  • How to Update Linux /usr/share/misc/pci.ids
  • pcimodules and lspci not working alternative solution
  • How to disable Google Fonts in Wordpress
  • Unable to load dynamic library /usr/lib64/php/modules/php_openssl
  • mysqld in Linux hacked
  • W: GPG error: http://archive.debian.org squeeze Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY AED4B06F473041FA NO_PUBKEY 64481591B98321F9
  • cannot mount kvm ntfs image
  • h264 DVR security camera footage cannot be played
  • dhcpd.conf how to secure so only known and allowed clients will be given dhcpd IP address leases
  • Thunderbird E-mail List Blank White but e-mails still clickable and viewable
  • css responsive images
  • responsive table without changing much code solution