do-release-upgrade 抛出此错误
Original exception was:
Traceback (most recent call last):
File "/tmp/ubuntu-release-upgrader-1piubui5/groovy", line 8, in <module>
sys.exit(main())
File "/tmp/ubuntu-release-upgrader-1piubui5/DistUpgrade/DistUpgradeMain.py", line 238, in main
if app.run():
File "/tmp/ubuntu-release-upgrader-1piubui5/DistUpgrade/DistUpgradeController.py", line 2089, in run
return self.fullUpgrade()
File "/tmp/ubuntu-release-upgrader-1piubui5/DistUpgrade/DistUpgradeController.py", line 1932, in fullUpgrade
if not self.updateSourcesList():
File "/tmp/ubuntu-release-upgrader-1piubui5/DistUpgrade/DistUpgradeController.py", line 801, in updateSourcesList
self.sources = SourcesList(matcherPath=self.datadir)
File "/usr/lib/python3/dist-packages/aptsources/sourceslist.py", line 273, in __init__
self.matcher = SourceEntryMatcher(matcherPath)
File "/usr/lib/python3/dist-packages/aptsources/sourceslist.py", line 470, in __init__
dist = DistInfo(base_dir=matcherPath)
File "/usr/lib/python3/dist-packages/aptsources/distinfo.py", line 184, in __init__
with open(dist_fname) as dist_file:
FileNotFoundError: …