How to Change an Environment Variable for a Service

This procedure shows how to modify cron environment variables to help with debugging.

1. Become superuser or assume an equivalent role.

   Roles contain authorizations and privileged commands. For more information about roles, see Configuring RBAC (Task Map) in System Administration Guide: Security Services.

2. Verify that the service is running.

   # svcs system/cron STATE STIME FMRI online Dec_04 svc:/system/cron:default

3. Set environment variables.

   In this example the UMEM_DEBUG and LD_PRELOAD environment variables are set. For information about the setenv subcommand refer to the svccfg(1M) man page.

   # svccfg -s system/cron:default setenv UMEM_DEBUG default # svccfg -s system/cron:default setenv LD_PRELOAD libumem.so

4. Refresh and restart the service.

   # svcadm refresh system/cron # svcadm restart system/cron

5. Verify that the change has been made.

   # pargs -e `pgrep -f /usr/sbin/cron` 100657: /usr/sbin/cron envp[0]: LOGNAME=root envp[1]: LD_PRELOAD=libumem.so envp[2]: PATH=/usr/sbin:/usr/bin envp[3]: SMF_FMRI=svc:/system/cron:default envp[4]: SMF_METHOD=/lib/svc/method/svc-cron envp[5]: SMF_RESTARTER=svc:/system/svc/restarter:default envp[6]: TZ=GB envp[7]: UMEM_DEBUG=default #