Avamar: Checkpoint backup failures due to a special character in the server root password

The following Avamar unacknowledged events are shown:

31029 ERROR        Failed to start gsan backup
31034 ERROR        Failed to create a checkpoint backup

The error message below shows when reviewing the cpbackup log /usr/local/avamar/var/client/cpbackup-<cptag>-<wid>.log:

For example:

admin@ave-prod:/usr/local/avamar/var/client/>: view cpbackup-cp.20260526120237-22136.log

...
...
[Tue May 26 08:05:14 2026] Run ddrmaint cp-backup-start.
[Tue May 26 08:05:14 2026] Execute: /usr/local/avamar/bin/ddrmaint cp-backup-start -- cptag=cp.20260526120237 -- id=root -- ap =******** -- hfsaddr=avamar-prod -- hfsport=27000 2>&1
[Tue May 26 08:05:14 2026] Execute output:
ERROR: ddrmaint: cp-backup-start: command failed: me exception authentication failure
[Tue May 26 08:05:14 2026] Error code: 1
...
...

In this instance, it was found that the root server password (root internal account, not the root OS) was using $ character.

The Avamar 19.12 Administration Guide (Server Administration -> Change server passwords and OpenSSH keys) states: The password must contain alphanumeric characters and any of the following special characters: Underscore ( _ ) period (.) dash (-)

Run the change-passwords script and change the password, following the rules set out in the Avamar 19.12 Administration Guide.