Export/Import VM between 8.1 and 7.5 versions

Ivan

Hello. Please could somebody help how to migrate vm from 8.1 to 7.5
I've done: xe template-export to xva file, at the 8.1 xcp-ng server
but when I've tried to import this xva have error:

MPORT_ERROR: [ INTERNAL_ERROR: [ Stream_vdi.Failure("Expected to find an inline checksum, found file called: Ref:120/00000000.xxhash") ]

Looks like new hash mechanism is using and avoid to restore VM. Please help me how to move that VM.

olivierlambert

Hi,

You can never import an XVA exported from a more recent host to an older one. Only the other way around (older to newer)

The alternative is to use XO and delta backup (or Continuous Replication) to restore on the older host.

Ivan

@olivierlambert IS XOCE support move vm from older to newer versions?

olivierlambert

You can't live migrate a VM from a newer to an older version, that's an XCP-ng thing, not related to Xen Orchestra.

Ivan

@olivierlambert said in Export/Import VM between 8.1 and 7.5 versions:

You can't live migrate a VM from a newer to an older version, that's an XCP-ng thing, not related to Xen Orchestra.

okay. thank you!

jedimarcus

@ivan I asked almost the same question some time ago (it was 8.2 to 7.5).

Don't try to mess around:

Install XOA/XOCE
Connect it to the 2 pools
Create a remote for you backup
Backup the VM to that remote (8.1 Pool)
Restore the VM (to the 7.5 Pool)
That should work without an issue

There is certainly another way, but XOA is your golden hammer, use that one, instead of the rusty shovel next to it. It will make your life so much easier.

Ivan

@jedimarcus said in Export/Import VM between 8.1 and 7.5 versions:

There is certainly another way, but XOA is your golden hammer, use that one, instead of the rusty shovel next to it. It will make your life so much easier.

Okay. I'll try to do this way. thank you