Avamar: Unable to Perform Restore or Modify Existing Backups

Summary: Unable to perform restore or modify existing backups-Error message: usr/local/avamar/bin/avtar.bin: error while loading shared libraries: /usr/local/avamar/lib/libmagfs.so.1: file too short ...

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

Avamar is unable to perform restore or update the retention tags or period of the existing backups. May encounter the following error message:

 

Event Detail pop up message

When running the avtar commands in the Avamar CLI, may encounter the same error when running avtar --version.

admin@avamar:~/>: avtar --version
/usr/local/avamar/bin/avtar.bin: error while loading shared libraries: /usr/local/avamar/lib/libmagfs.so.1: file too short
admin@avamar:~/>:

Cause

avtar.bin binary is trying to load a shared library (libmagfs.so.1), but the file is either corrupted or file contents are missing. 

Use the following commands to verify the checksum value and determine whether the libmagfs.so.1.0.0 file is empty or corrupted.

md5sum /usr/local/avamar/lib/libmagfs.so.1.0.0

ls -lrth /usr/local/avamar/lib/libmagfs.so.1.0.0

Expected outputs

admin@avamar:~/>: md5sum /usr/local/avamar/lib/libmagfs.so.1.0.0
8d21608d28e65c89547dfbcb9483c869  libmagfs.so.1.0.0

admin@avamar:~/>: ls -lrth /usr/local/avamar/lib/libmagfs.so.1.0.0
-r--r--r-- 1 root root 36M Dec  8  2023 /usr/local/avamar/lib/libmagfs.so.1.0.0

If there is a mismatch in checksum values or the file is missing, the file should be replaced.

Resolution

If the symptoms match the described issue, contact Dell Support and reference this article for further assistance.

Affected Products

Avamar Server, Avamar Virtual Edition
Article Properties
Article Number: 000323264
Article Type: Solution
Last Modified: 15 يناير 2026
Version:  2
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