Portage Logging

Something else I should have known about long ago.   To turn on logging in portage, simply add the following to /etc/make.conf:

PORTAGE_ELOG_CLASSES="warn error log"

The will add log files for each package to /var/log/portage/elog/:

# ls -lah
total 108K
drwxrws--- 2 portage portage 4.0K 2008-06-06 01:13 .
drwxr-xr-x 3 root    root    4.0K 2007-10-04 12:29 ..
-rw-r--r-- 1 root    portage  200 2008-06-06 00:58 dev-db:postgresql-8.0.15:20080605-155810.log
-rw-rw-r-- 1 root    portage  72K 2008-06-06 00:44 summary.log
-rw-r--r-- 1 root    portage   67 2008-06-06 01:06 sys-apps:coreutils-6.10-r2:20080605-160624.log
-rw-r--r-- 1 root    portage  108 2008-06-06 01:08 sys-apps:shadow-

Useful to have around when you miss a barrage of announcements after a large emerge.

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