升级到 Ubuntu 16.04 do-release-upgrade 失败

Question

当我尝试使用以下命令升级到 Ubuntu 16.04（从 15.10 开始）时：

sudo do-release-upgrade

我收到以下错误：

Traceback (most recent call last):
  File "/tmp/ubuntu-release-upgrader-06fgq3pm/xenial", line 8, in <module>
    sys.exit(main())
  File "/tmp/ubuntu-release-upgrader-06fgq3pm/DistUpgrade/DistUpgradeMain.py", line 242, in main
    if app.run():
  File "/tmp/ubuntu-release-upgrader-06fgq3pm/DistUpgrade/DistUpgradeController.py", line 1876, in run
    return self.fullUpgrade()
  File "/tmp/ubuntu-release-upgrader-06fgq3pm/DistUpgrade/DistUpgradeController.py", line 1757, in fullUpgrade
    if not self.doPostInitialUpdate():
  File "/tmp/ubuntu-release-upgrader-06fgq3pm/DistUpgrade/DistUpgradeController.py", line 943, in doPostInitialUpdate
    self.tasks = self.cache.installedTasks
  File "/tmp/ubuntu-release-upgrader-06fgq3pm/DistUpgrade/DistUpgradeCache.py", line 787, in installedTasks
    for line in pkg._pcache._records.record.split("\n"):
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xf6 in position 441: invalid start byte
=== Command terminated with exit status 1 (Fri Apr 22 09:09:59 2016) ===

有任何想法吗？

Answer 1

有类似的问题（相同的错误但不同的字符）。修复方法是编辑 /var/lib/dpkg/status 并删除有问题的字符。就我而言，它是 davmail 软件包。

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还发现它已经存在了一段时间并引起了其他问题：\n https://lists.ubuntu.com/archives/foundations-bugs/2012-November/125607.html

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“维护者：Micka\xc3\xabl Guessant”\n(\xc3\xab) 未采用 UTF-8 编码:(

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您可能有类似的问题。如果您了解一些 Python，您可以编写一个脚本来检测您的情况中的问题所在。

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Answer 2

这是一个已确认的错误，到目前为止，影响的人数还不足以保证修复。如果您受到影响，请订阅此错误报告并发表评论：

• do-release-upgrade 崩溃并显示消息：“UnicodeDecodeError：‘utf-8’编解码器无法解码位置 337 中的字节 0xae：无效的起始字节”编辑

根据我的经验，受错误影响的人越多，修复该错误的机会就越大。