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 a role that includes the Service Management rights profile.

   Roles contain authorizations and privileged commands. For more information about roles, see Configuring RBAC 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 #