Ubuntu
ubuntu-release-upgrader package

  1. Bug #1031882
  2. Comment #5

Comment 5 for bug 1031882

Revision history for this message
Graham Inggs (ginggs) wrote :

> File "/tmp/update-manager-K3_3vM/DistUpgrade/DistUpgradeView.py", line 374, in confirmChanges
> apt_pkg.size_to_str(downloadSize)
> UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 1: ordinal not in range(128)

I ran into precisely the same problem as in your second case after running 'sudo upgrade-manager -d'.
I then tried 'sudo do-release-upgrade -d' and the upgrade was successful.