disk space

This helpful error:

Internal error An error occurred on the page you were trying to access. If you continue to experience problems please contact your redMine administrator for assistance.

When looked into the logs:

sudo tail -f /var/log/redmine/default/production.log

That was well nigh impossible. GUI fail, on gparted's part.

These steps won't be 100% complete because it's 7:15am and i spent the last hour frying my brain on this stuff (after the brain unilaterally called a break about 2:15am and i fell asleep), but they do fill in some gaps other resources out there don't quite cover. Some even seem to (falsely) suggest that unallocated space must be made into its own partition first. Here are some of the better links; my (final working) steps below.

user warning: Got error 28 from storage engine query

what partition is my mysql on

free disk space debian partitions

"Got error 28 from storage engine query" error
http://drupal.org/node/768530

Keeping track of disk space
http://www.debian-administration.org/articles/143

delete log files...