You can recover from an upgrade failure
by rerunning the upgrade, by performing a fresh installation and then restoring the system
from a backup, or by reverting a TPVM snapshot.
Procedure
-
To rerun the upgrade, follow the
steps for the type of upgrade you were attempting.
-
To perform a fresh installation
and restore the system backup, take the following steps.
-
Uninstall EFA to remove any components that might have been installed
before the upgrade failed.
-
Follow the steps for the type of installation you need.
-
Restore the EFA
backup.
device# efa system restore --backup-tar <filename>.tar.gz
-
(For SLX-OS 20.3.2a or later) To revert TPVM from a snapshot and then restore
EFA, take the following steps.
This step is applicable only if you created a TPVM snapshot (using the
tpvm snapshot create command) before upgrade.
-
Revert to the TPVM snapshot.
The revert process can take about 10 minutes.
-
Restore the EFA backup.
device# efa system restore --backup-tar <filename>.tar.gz