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Change container ID on the fly? [message #28962]

Wed, 02 April 2008 14:53

shuaib85
Messages: 59
Registered: September 2007

Member

Dear folks

I was migrating one container from machine to another and accidentally i found that there are two similar container ID on the two machines e.g. 101 on both machines. Migration does not allow migrating a container if the same ID on the other machine exists.

Just wondering about how to change the container that on the fly if possible. If not what are the other solutions?

Thanks

WebVZ: OpenVZ Web Management Tool
http://webvz.sourceforge.net

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Re: Change container ID on the fly? [message #29069 is a reply to message #28962]

Fri, 04 April 2008 10:55

Andrey Mirkin
Messages: 193
Registered: May 2006

Senior Member

Hello,

You can checkpoint your container and after that restore it on the same node with another ID.

Here is an example how to change CTID from 101 to 102:

    host# vzctl chkpnt 101 --dumpfile /tmp/Dump.101
    host# mv /etc/vz/conf/101.conf /etc/vz/conf/102.conf
    host# mv /vz/private/101 /vz/private/102
    host# mv /vz/root/101 /vz/root/102
    host# vzctl restore 102 --dumpfile /tmp/Dump.101

If you have some action scripts for this container, then you will need to rename them too.

Andrey Mirkin

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