ubuntu常见错误及解决

http://blog.csdn.net/pipisorry/article/details/39536433

Destination Host Unreachable / No route to host

Sub-process /usr/bin/dpkg returned an error code (1)

sorry, ubuntu14.04 has experienced an internal error ubuntu-sso-login crashed with import error in __main__

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Destination Host Unreachable / No route to host

pika:~$ping 192.168.31.191
PING 192.168.31.191 (192.168.31.191) 56(84) bytes of data.
From 192.168.31.98 icmp_seq=1 Destination Host Unreachable
说明不在同一局域网内，虽然ip前3位相同！！！

换个wifi试试就可以了。

或者No route to host
　　解决方案是：关闭防火墙
    service iptables stop

[常见的网络命令查看当前网络状态]

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Sub-process /usr/bin/dpkg returned an error code (1)

安装java如果使用oracle-java7-installer就会一起出错，dpkg错误：

ImportError: No module named 'ConfigParser'
dpkg: error processing package python-samba (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of samba-common-bin:
 samba-common-bin depends on python-samba; however:
  Package python-samba is not configured yet.

dpkg: error processing package samba-common-bin (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
              E: Sub-process /usr/bin/dpkg returned an error code (1)

解决方案：

$ sudo mv /var/lib/dpkg/info /var/lib/dpkg/info_old //现将info文件夹更名
$ sudo mkdir /var/lib/dpkg/info //再新建一个新的info文件夹
$ sudo apt-get update
apt-get -f install
$ sudo mv /var/lib/dpkg/info/* /var/lib/dpkg/info_old//执行完上一步操作后会在新的info文件夹下生成一些文件，现将这些文件全部移到info_old文件夹下
$ sudo rm -rf /var/lib/dpkg/info //把自己新建的info文件夹删掉
$ sudo mv /var/lib/dpkg/info_old /var/lib/dpkg/info //把以前的info文件夹重新改回名字

[dpkg:处理 xxx (--configure)时出错解决办法]

[Sub-process /usr/bin/dpkg returned an error code (1)的解决方法]
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ubuntu internal error

sorry, ubuntu14.04 has experienced an internal error ubuntu-sso-login crashed with import error in __main__

也可能是之前lz将系统默认的python改成了python3导致的，改回来就可以了

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from:http://blog.csdn.net/pipisorry/article/details/39536433

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