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Update release-8-3.md #308

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8 changes: 6 additions & 2 deletions docs/releases/release-8-3.md
Original file line number Diff line number Diff line change
Expand Up @@ -434,7 +434,11 @@ To prevent this situation after an upgrade:
2. The installer will refuse to upgrade if the detected key length is too small.
3. Xen Orchestra developers have added a visible warning to make users aware of the issue before attempting any upgrade to XCP-ng 8.3. If applicable, the warning is displayed next to the host name in the Hosts view.

If you never installed custom host certificates, then you are likely using the default self-signed certificate XCP-ng generates the first time it is installed. In this case, you can generate a new one, from XCP-ng 8.2.1, with the command `xe host-emergency-reset-server-certificate` on the host.
If you've never installed custom host certificates, then you are likely using the default self-signed certificate XCP-ng generates the first time it is installed. In this case, you can generate a new one, from XCP-ng 8.2.1, with the command `xe host-emergency-reset-server-certificate` on the host.

You can validate your existing and new certificates with `openssl x509 -text -noout -in /etc/xensource/xapi-ssl.pem | grep Public-Key`. Running this will either output `1024` which has been depreciated or `2048` which is supported for XCP-ng 8.3.X.
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You can validate your existing and new certificates with `openssl x509 -text -noout -in /etc/xensource/xapi-ssl.pem | grep Public-Key`. Running this will either output `1024` which has been depreciated or `2048` which is supported for XCP-ng 8.3.X.
You can validate your existing and new certificates with `openssl x509 -text -noout -in /etc/xensource/xapi-ssl.pem | grep Public-Key`. Running this will either output `1024` which has been deprecated or `2048` which is supported for XCP-ng 8.3.X.


In some rare scenario's you may have very a very old version of XCP-ng still installed in a backup file on your system, please open a ticket with support if this is the case. Alternative, you may need to perform a fresh installation of XCP-ng erasing all configuration on a given host.
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I don't understand why the backup partition would cause any issue. Can you explain?


On the other hand, if you installed a custom host certificate and its key is too small, you will need to generate a new one on your side and install it the same way you installed the first one.

Expand Down Expand Up @@ -502,4 +506,4 @@ Live migrating a VM from an older XenServer version can sometimes result in erro
* The VM may reboot.
* The VM may get duplicated, meaning the same VM UUID (and usually its VDIs too) will appear both on the sender and receiver host. In such a case, you'll need to remove the duplicate from the receiver host.

It would require a hotfix to the old XenServer, but since those versions are no longer supported, XenServer won't be developing one. If you need to migrate from such old host, you should rely on [Xen Orchestra warm migration feature](https://xen-orchestra.com/blog/warm-migration-with-xen-orchestra/).
It would require a hotfix to the old XenServer, but since those versions are no longer supported, XenServer won't be developing one. If you need to migrate from such old host, you should rely on [Xen Orchestra warm migration feature](https://xen-orchestra.com/blog/warm-migration-with-xen-orchestra/).