GF19: Emerge fails to unmerge a package.

[kallamej]

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Q: I have upgraded a package, but the old version fails to unmerge. What should I do if:

• It complains about an unexpected EOF while looking for matching `"' in /var/db/pkg/<cat>/<pkg-version>/<pkg-version>.ebuild?
  
  A: This is caused by an old bug that replaced a " with, typically, ^A. Edit the ebuild in /var/db/... manually, or try running the (unmaintained) fixvardbentries script.
  See Unexpected EOF error on unmerging for more info and support.
• It complains about a missing eclass?
  
  A: There are a number of ways to solve this:
  1. Grab the old eclass from CVS and put it in /usr/portage/eclass, before unmerging
  2. Edit the saved ebuild in /var/db/pkg/<cat>/<pkg-version>
  3. Remove the files installed by the ebuild by hand
  Taken from [post=1062142]this post[/post] in [topic=126968]Cannot unmerge due to missing eclass[/topic]. Note that if you're using ebuilds from an overlay, you have to be careful with eclasses from that overlay. Such eclasses must be kept as long as you have an ebuild from that overlay still installed.
• I get a traceback?
  
  A: There is probably corruption in your package database. Check the files in /var/db/pkg/<cat>/<pkg-version> for null characters, carriage returns or whatever else that shouldn't be there. Chances are that re-emerging the old version and then upgrading solves the problem. More info can be found [post=3878382]here[/post], [topic=244200]here[/topic] and [topic=224817]here[/topic], for instance.

2005-08-08: Updated unexpected EOF section since fixvardbentries is no longer distributed with portage. --kallamej
2006-06-29: Added note about eclasses and overlays. --kallamej
2007-05-19: Added one more link to the traceback section and switched to post and topic tags. --kallamej