Last Modified: Oct 12, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
17.5.1.8, 17.5.1.9
Opened: Aug 22, 2026 Severity: 3-Major
The following messages/errors are displayed: Waiting for mcpd to reach phase base, current phase is platform. "/usr/bin/tmsh -n -g -a load sys config partitions all base " - failed. -- Loading schema version: 17.5.1.3 In the systemd journal or /var/log/user.log: 01070920:3: Application error for confpp: grep: /sys/block/vd?/serial: No such file or directory sh: line 1: 12768 Hangup ( /etc/init.d/syslog-ng start ) 2>&1
Upgrade failed.
BIG-IP system is offline after upgrade, with a "sh: line 1: 12768 Hangup ( /etc/init.d/syslog-ng start ) 2>&1" error in /var/log/user.log
Reload the configuration: tmsh load sys config
None