Tried running the backup for the first time to a local hard drive. Failed without creating a backup file. Plenty of space on the device.

Here is the trace:

[ INFO] Backup started at [03/25/10 15:31:51]
[ INFO] Setting hudson in shutdown mode to avoid files corruptions.
[ INFO] Waiting all jobs end...
[ INFO] Number of running jobs detected : 0
[ INFO] All jobs finished.
[ INFO] Full backup file name : /backups/hudson/backup_20100325_1531.tar.bz2
[ERROR] org.codehaus.plexus.archiver.ArchiverException: Failed to read filesystem attributes for: /var/lib/hudson/war/images/24x24/
grey_anime.gif

org.jvnet.hudson.plugins.backup.BackupException: java.io.IOException: Unable to add war/images/24x24/grey_anime.gif at org.jvnet.hudson.plugins.backup.utils.BackupEngine.doBackup(BackupEngine.java:115) at org.jvnet.hudson.plugins.backup.utils.BackupTask.run(BackupTask.java:125) at java.lang.Thread.run(Thread.java:636)

Caused by: java.io.IOException: Unable to add war/images/24x24/grey_anime.gif at org.jvnet.hudson.plugins.backup.utils.BackupEngine.handleFile(BackupEngine.java:90) at org.apache.commons.io.DirectoryWalker.walk(DirectoryWalker.java:367) at org.apache.commons.io.DirectoryWalker.walk(DirectoryWalker.java:364) at org.apache.commons.io.DirectoryWalker.walk(DirectoryWalker.java:364) at org.apache.commons.io.DirectoryWalker.walk(DirectoryWalker.java:364) at org.apache.commons.io.DirectoryWalker.walk(DirectoryWalker.java:335) at org.jvnet.hudson.plugins.backup.utils.BackupEngine.doBackup(BackupEngine.java:113) ... 2 more
[ INFO] Cancel hudson shutdown mode
[ INFO] Backup end at [03/25/10 15:32:43]
[ INFO] [51.345s]