我的Ubuntu系统中etc、default文件夹被误删了怎么办，恢复不了，对系统有什么影响，我装的是双系统

etc是系统的配置文件 丢失对系统影像很严重 应该会启动报错如果丢失了，可以用livecd进去，拷贝其他机器的或者livecd的，重启 或许可以使用 /default到时没多大影像

/etc/passwd删除了linux登陆进不了系统解决------解决方案--------------------------------------------------------进入单用户模式，然后cp

/etc/passwd-

/etc/passwd即可！------解决方案--------------------------------------------------------在grub中,按下e进入编辑模式,在第二行的后面加singal

然后回车确认,按b启动进入单人模式

You removed 5 directories, the status file, etc. So, lets try to fix the stuff. First, create the directory:

sudo mkdir -p /var/lib/dpkg/{alternatives,info,parts,triggers,updates}

Recover some backups:

sudo cp /var/backups/dpkg.status.0 /var/lib/dpkg/status

Now, let's see if your dpkg is working (start praying):

apt-get download dpkgsudo dpkg -i dpkg*.deb

If everything is "ok" then repair your base files too:

apt-get download base-files

sudo dpkg -i base-files*.deb

Now try to update your package list, etc.:

dpkg --auditsudo apt-get updatesudo apt-get check

Now, let's take a deep breath. Phew. Do ls -l /var/lib/dpkg and compare with the above list. If some -old file is not present don't worry it will be there tomorrow.

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