日志

Log Level

See syslog(2) manual or file /usr/include/sys/syslog.h.

Syslog

The important logs will be recorded in to system log. If your system use systemd as service manager, you can use journalctl.

ULPatch

Each ULPatch command has --log-level[=LEVEL], --lv[=LEVEL], --log-debug and --log-error arguments, use to specify log level. The log level number obey /usr/include/sys/syslog.h rules. And you could use verbose argument to see more informations.