升级错误 - “unattended_upgrade 因 apt.cache.LockFailedException in_fetch_archives() 而崩溃：无法锁定 /var/cache/apt/archives/lock”

Question

当我尝试从 16.04 升级到 16.10 并打开回溯时收到一条错误消息：

unattended_upgrade 因 apt.cache.LockFailedException in_fetch_archives() 而崩溃：
无法锁定 /var/cache/apt/archives/lock

我发现它链接到一个名为的python文件unattended_upgrade。它引用了一个名为的文件cache.py，回溯表明它在第338行不起作用，我发现是这样的：

# get lock
lockfile = apt_pkg.config.find_dir("Dir::Cache::Archives") + "lock"
lock = apt_pkg.get_lock(lockfile)
if lock < 0:
    raise LockFailedException("Failed to lock %s" % lockfile)

try:
    # this may as well throw a SystemError exception
    if not pm.get_archives(fetcher, self._list, self._records):
        return False
    # now run the fetcher, throw exception if something fails to be
    # fetched
    return self._run_fetcher(fetcher)
finally:
    os.close(lock)

此代码是 Python 3 的，我不知道它有什么用处，也不知道该如何修复，但它不允许我升级。提前致谢

Answer 1

尝试

sudo rm -f /var/cache/apt/archives/lock
sudo apt-get -f -y remove
sudo apt-get -f -y update

我不确定我是否正确记住了这些命令，所以尝试一下。