This probably due to lsb_release returning raring, since that part of
the upgrade completed, and the Source From in DistUpgrade.cfg being
"quantal". I think the only thing to do here is to return a better
error message if release == self.toDist indicating how one may resolve
the situation.
>From DistUpgradeController.py:
def prepare(self):
""" initial cache opening, sanity checking, network checking """
# first check if that is a good upgrade
self.release = release = subprocess.Popen(["lsb_release","-c","-s"],
stdout=subprocess.PIPE,
universal_newlines=True).communicate()[0].strip()
logging.debug("lsb-release: '%s'" % release)
if not (release == self.fromDist or release == self.toDist):
logging.error("Bad upgrade: '%s' != '%s' " % (release,
self.fromDist))
self._view.error(_("Can not upgrade"),
_("An upgrade from '%s' to '%s' is not "
"supported with this tool." % (release,
self.toDist)))
sys.exit(1)
** Changed in: ubuntu-release-upgrader (Ubuntu)
Status: New => Triaged
** Changed in: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided => Low
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https://bugs.launchpad.net/bugs/1165281
Title:
12.10 to 13.04 Failed, Now Get "An upgrade from raring to quantal is
not supported with this tool"
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