Need new migration from 7.9 to 8

[Elberton (GJ)]

NethServer Version: 7.9 and 8
**Module:**Nextcloud

Hello, I migrated the NethServer v7.9 to v8 last week. But we had a flood. The new v8 server is down.

I had to restore to another machine, but v8 hadn’t finished the migration when I made the backup.
I still have v7.9, but I can no longer restart the migration. It says “migration complete.” Can I restart the migration from v7.9 to get the latest data?

Thank’s for your help

[davidep (Davide Principi)]

Hi Elberton,

I’m sorry for the inconvenience.

Yes, you can restart the migration. Please follow these steps:

• On the NS7 Migration Tool, select Connect to a different cluster to abort the current migration state.
• Start the services on NS7 again and verify that everything is working correctly and your data is intact:
  https://github.com/NethServer/nethserver-ns8-migration/blob/master/README.rst#post-migration-step-back
• Reset the NS8 node using the uninstall/install procedure:
  https://docs.nethserver.org/projects/ns8/en/latest/install.html#uninstall
• Repeat the migration procedure from the beginning.

[Elberton (GJ)]

Hi thank"‘s.

That ok for 7.9, nextcloud is go back.

But when i try to reconnect to the v8, he say migration completed.

I have remove the package.

I have delete this :

config delete ns8
config delete wg-quick@wg0
config delete agent
After doing that, I was able to re-enter the parameters.

But it immediately displays "migration completed."

I think I must have forgotten to delete some things in the v7.9 configuration.
If I connect to a different cluster, it tells me:
Some apps have already been migrated: it is not possible to disconnect at this point. 

[Elberton (GJ)]

i do that /usr/sbin/ns8-abort nethserver-nextcloud

and now i can restart the migration.

I I’ll keep you updated

[Elberton (GJ)]

Migration was OK. All fine. but i can’t install onlyoffice to open document from nextcloud.

I have this message in the sofware center Updates are suspended

There is an ongoing NS7 migration. Updates will resume once the migration is complete.

In the node option. I have node 1 all ok. But i have node 2 migration in progress.

I have read in the forum we weed to wait 12hours.

In the v7.9 i click finish et it’s deconnected.

[davidep (Davide Principi)]

@Elberton

i have node 2 migration in progress.

@Elberton

In the v7.9 i click finish et it’s deconnected.

Did you run multiple join/leave attempts? There can be some migration leftovers in the Redis DB.

@Elberton

I have read in the forum we weed to wait 12hours.

Yes, two conditions are evaluated to consider a migration finished in any case:

1. system uptime > 12 hours and
2. the NS7 node VPN seen > 12 hours

However I’d remove the NS7 node with the documented procedure: Release notes — NS8 documentation