calculate / # env-update
"/etc/portage/make.conf/custom", line 39: $: bad substitution
"/etc/portage/make.conf/custom", line 39: $: bad substitution
portage: 'portage' user or group missing.
         For the defaults, line 1 goes into passwd, and 2 into group.
         portage:x:250:250:portage:/var/tmp/portage:/bin/false
         portage::250:portage
*** WARNING ***  For security reasons, only system administrators should be
*** WARNING ***  allowed in the portage group.  Untrusted users or processes
*** WARNING ***  can potentially exploit the portage group for attacks such as
*** WARNING ***  local privilege escalation.