I tried to follow the instructions here:
How can I install the MercurialEclipse Plugin?
But instead of being suggested the Mercurial plugin, I'm only offered something called 'CodeBeamer' in the avaialble software dialog. What gives?
(I'm using Eclipse Luna.)
Since a few years back, Eclipse has a feature called Eclipse Marketplace, which means that you don't have to bother with update sites. I usually use this feature when downloading plugins.
Select Help -> Eclipse Marketplace in the menu, and search for Mercurial:
Click the install button for Mercurial Eclipse, tick the checkbox, and click Confirm.