Follow PSN4018u apply fix on current version.
If the issue already caused system cannot boot up, user will need restore system and data, then follow PSN 4018u apply fix. To recover the system, for LINUX systems use Kick-start DVD boot up the CMS and follow the procedure in SIMT manual for recovery. Page#185 SIMT R17 Linux Sept 2014 manual attached
Note: To fully recover the system, Customer should have ADMIN and Maintenace backup for system files and data respectively. If there's no ADMIN backup, user will have to reinstall CMS and then restore report data from Maintenance backup.