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In-place MDM/MLM upgrade to R77.20 may fail due to lack of disk space on root partition
Symptoms
  • When performing an in-place upgrade of Multi-Domain Management/Multi-Domain Log Server from versions prior to R77 to R77.20 (using Upgrade CD CLI), root partition fills up with the logs that are stored under the /var/log partition.
Cause

Creation of the logs that are stored under the /var/log partition is part of the migration process, which creates a tgz file under the root partition. When the total size of the logs is greater than available disk space in root, the upgrade process fails.


Solution
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