[РЕШЕНО] проблема с virtual/libudev-215-r1

обновляюсь раз в полгода. при очередном обновление.
помогите решить проблему.

Calculating dependencies... done!
[ebuild N ] virtual/libudev-215-r1:0/1::gentoo USE="static-libs -systemd" ABI_X86="32 (64) (-x32)" 0 KiB

>>> Verifying ebuild manifests
Traceback (most recent call last):
File "/usr/lib/python-exec/python2.7/emerge", line 50, in
retval = emerge_main()
File "/usr/lib64/python2.7/site-packages/_emerge/main.py", line 1154, in emerge_main
return run_action(emerge_config)
File "/usr/lib64/python2.7/site-packages/_emerge/actions.py", line 3191, in run_action
emerge_config.args, spinner)
File "/usr/lib64/python2.7/site-packages/_emerge/actions.py", line 498, in action_build
retval = mergetask.merge()
File "/usr/lib64/python2.7/site-packages/_emerge/Scheduler.py", line 1028, in merge
rval = self._merge()
File "/usr/lib64/python2.7/site-packages/_emerge/Scheduler.py", line 1430, in _merge
self._main_loop()
File "/usr/lib64/python2.7/site-packages/_emerge/Scheduler.py", line 1397, in _main_loop
self._schedule()
File "/usr/lib64/python2.7/site-packages/_emerge/PollScheduler.py", line 127, in _schedule
self._schedule_tasks()
File "/usr/lib64/python2.7/site-packages/_emerge/Scheduler.py", line 1598, in _schedule_tasks
if self._schedule_tasks_imp():
File "/usr/lib64/python2.7/site-packages/_emerge/Scheduler.py", line 1706, in _schedule_tasks_imp
task = self._task(pkg)
File "/usr/lib64/python2.7/site-packages/_emerge/Scheduler.py", line 1737, in _task
previous_cpv = [x for x in vardb.match(pkg.slot_atom) \
File "/usr/lib64/python2.7/site-packages/portage/dbapi/vartree.py", line 539, in match
origdep, mydb=self, use_cache=use_cache, settings=self.settings)
File "/usr/lib64/python2.7/site-packages/portage/dbapi/dep_expand.py", line 51, in dep_expand
mydb.cp_list(mydep.cp):
File "/usr/lib64/python2.7/site-packages/portage/dbapi/vartree.py", line 431, in cp_list
self.aux_get(cpv, self._aux_cache_keys)))
File "/usr/lib64/python2.7/site-packages/portage/dbapi/vartree.py", line 747, in aux_get
mydata.update(self._aux_get(mycpv, aux_keys, st=mydir_stat))
File "/usr/lib64/python2.7/site-packages/portage/dbapi/vartree.py", line 779, in _aux_get
raise KeyError(mycpv)
KeyError: u'virtual/libudev-215-r1'

UPDATE: Стоило спросить - нашелся ответ. очевидно был сбой на ЖД.
/var/db/pkg/virtual/libudev-215-r1 оказался файлом.
rm /var/db/pkg/virtual/libudev-215-r1