centos localectl,centos7卸载软件命令
CentOS7网络设置修复
服务器有两个网卡enp7s0和enp8s0
服务器需要通过enp8s0和互联网联通,互联网为笔记本转接
通过centos7界面修改ip,失败;
通过centos7的网络配置文件/etc/sysconfig/network-scripts/ifcfg-enp8s0修改ip设置
设置如下:
1.启动 service network start报错,通过journalctl-xe查看如下
-- Defined-By: systemd
-- Support:
--
-- Unit fprintd.service has begun starting up.
12月 29 19:31:12 crrchost dbus-daemon[851]: dbus[851]: [system] Successfully activated service'net.reactivated.Fprint'
12月 29 19:31:12 crrchost dbus[851]: [system] Successfully activated service'net.reactivated.Fprint'
12月 29 19:31:12 crrchost systemd[1]: Started Fingerprint Authentication Daemon.
-- Subject: Unit fprintd.service has finished start-up
-- Defined-By: systemd
-- Support:
--
-- Unit fprintd.service has finished starting up.
--
-- The start-up result is done.
12月 29 19:31:12 crrchost fprintd[6685]: Launching FprintObject
12月 29 19:31:12 crrchost fprintd[6685]:** Message: D-Bus service launched with name: net.reactivated.Fprint
12月 29 19:31:12 crrchost fprintd[6685]:** Message: entering main loop
12月 29 19:31:18 crrchost polkitd[835]: Operator of unix-session:1 successfully authenticated as unix-user:windfarm to gain TEMPORARY authorization for action org.freedesktop.systemd1.manage-units for system-bus
12月 29 19:31:18 crrchost systemd[1]: Starting LSB: Bring up/down networking...
-- Subject: Unit network.service has begun start-up
-- Defined-By: systemd
-- Support:
--
-- Unit network.service has begun starting up.
12月 29 19:31:18 crrchost network[6693]:正在打开环回接口: [ 确定 ]
12月 29 19:31:18 crrchost network[6693]:正在打开接口 enp7s0:
12月 29 19:31:24 crrchost network[6693]:正在确定 enp7s0的 IP信息...失败:不存在链接。检查电缆?
12月 29 19:31:24 crrchost network[6693]: [失败]
12月 29 19:31:24 crrchost network[6693]:正在打开接口 enp8s0: RTNETLINK answers: File exists
12月 29 19:31:25 crrchost network[6693]: [ 确定 ]
12月 29 19:31:25 crrchost network[6693]: RTNETLINK answers: File exists
12月 29 19:31:25 crrchost network[6693]: RTNETLINK answers: File exists
12月 29 19:31:25 crrchost network[6693]: RTNETLINK answers: File exists
12月 29 19:31:25 crrchost network[6693]: RTNETLINK answers: File exists
12月 29 19:31:25 crrchost network[6693]: RTNETLINK answers: File exists
12月 29 19:31:25 crrchost network[6693]: RTNETLINK answers: File exists
12月 29 19:31:25 crrchost network[6693]: RTNETLINK answers: File exists
12月 29 19:31:25 crrchost network[6693]: RTNETLINK answers: File exists
12月 29 19:31:25 crrchost network[6693]: RTNETLINK answers: File exists
12月 29 19:31:25 crrchost systemd[1]: network.service: control process exited, code=exited status=1
12月 29 19:31:25 crrchost systemd[1]: Failed to start LSB: Bring up/down networking.
-- Subject: Unit network.service has failed
-- Defined-By: systemd
-- Support:
--
-- Unit network.service has failed.
--
-- The result is failed.
12月 29 19:31:25 crrchost systemd[1]: Unit network.service entered failed state.
12月 29 19:31:25 crrchost systemd[1]: network.service failed.
12月 29 19:31:25 crrchost polkitd[835]: Unregistered Authentication Agent for unix-process:6669:319312(system bus name:1.263, object path/org/freedesktop/PolicyKit1/AuthenticationAgent, locale zh_CN.UTF-8)(d
3.systemctl status network.service查看如下:
● network.service- LSB: Bring up/down networking
Loaded: loaded(/etc/rc.d/init.d/network; bad; vendor preset: disabled)
Active: failed(Result: exit-code) since六 2018-12-29 18:38:17 CST; 1min 24s ago
Docs: man:systemd-sysv-generator(8)
Process: 909 ExecStart=/etc/rc.d/init.d/network start(code=exited, status=1/FAILURE)
12月 29 18:38:06 crrchost systemd[1]: Starting LSB: Bring up/down networking...
12月 29 18:38:06 crrchost network[909]:正在打开环回接口: [ 确定 ]
12月 29 18:38:06 crrchost network[909]:正在打开接口 enp7s0:
12月 29 18:38:12 crrchost network[909]:正在确定 enp7s0的 IP信息...失败:…?
12月 29 18:38:12 crrchost network[909]: [失败]
12月 29 18:38:17 crrchost network[909]:正在打开接口 enp8s0: [ 确定 ]
12月 29 18:38:17 crrchost systemd[1]: network.service: control process exi...=1
12月 29 18:38:17 crrchost systemd[1]: Failed to start LSB: Bring up/down n...g.
12月 29 18:38:17 crrchost systemd[1]: Unit network.service entered failed...e.
12月 29 18:38:17 crrchost systemd[1]: network.service failed.
Hint: Some lines were ellipsized, use-l to show in full.
1.参考网络方法停用NetworkManager,依旧报错
systemctl stop NetworkManager
systemctl disable NetworkManager
2.比对两个网卡的MAC地址和配置文件的MAC地址
a.查看mac地址配置,ipconfig
b.查看配置文件中的macd地址是否匹配,ifcfg-enp8s0和ifcfg-enp7s0,
按照网络方法增加一行HWADDR=ipconfig查询到的对应网卡MAC地址;
c.重启network服务依旧报错;
3.通过GUI界面查看网络,提示“系统的网络服务与此版本的网络管理器不兼容”
这与之前停掉NetworkManager有关,此处不表;
4.因为ifcfg-enp7s0实际上没有插网线,修正其配置文件如下:
ONBOOT=no
重新启动服务后网络正常;
5.检查网络
1.network和NetworkManager不同,通过界面和通过配置文件,可能会导致配置混乱,且NetworkManager有些程序不支持,需要停用;
2.BOOTPROTO=none虽然可以表示静态ip,但是如果要启用,必须设置其为
BOOTPROTO=static或BOOTPROTO=dhcp
3.一个网卡没哟被启用,也就是没有设置动态ip或静态ip,是无法被初始化的,不能设置ONBOOT=yes
In Centos7.0 disabling NetworkManager will leave a dhcp client running configured for NetworkManager. This causes the error message RTNETLINK answers: File exists when the network service is started.
The stale dhclient process has the additional"benefit" that when the lease expires your dhclientwill choke, since it cannot reach NetWorkManager, thus removing your IP address.
If you grep for it, you will see that it points to a NetWorkManager configuration file.
[root@host~]# ps-ef| grep dhc
root 1865 792 0 Apr28? 00:00:00/sbin/dhclient-d-sf\
/usr/libexec/nm-dhcp-helper-pf/var/run/dhclient-eno1.pid-lf\
/var/lib/NetworkManager/dhclient-c96e56d3-a4c9-4a87-85ca-93dc0ca268f2-eno1.lease\
-cf/var/lib/NetworkManager/dhclient-eno1.conf eno1
So what you can do is kill the dhclient and only then start your network service.
Ubuntu系统修改Locale时出现错误怎么解决
问题描述
终端显示中文正常,应用程序里面显示中文异常。
错误表现
1$ sudo dpkg-reconfigure locales
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE=“zh_CN:zh:en_US:en”,
LC_ALL=“zh_CN.UTF-8”,
LANG=“zh_CN.UTF-8”
are supported and installed on your system.
perl: warning: Falling back to the standard locale(“C”)。
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
/bin/bash: warning: setlocale: LC_ALL: cannot change locale(zh_CN.UTF-8)
Generating locales.。。
en_US.UTF-8.。。/usr/sbin/locale-gen: line 177: warning: setlocale: LC_ALL: cannot change locale(zh_CN.UTF-8)
up-to-date
Generation complete.
1$ man locale
man: can‘t set the locale; make sure$LC_* and$LANG are correct
1$ locale
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=zh_CN.UTF-8
LANGUAGE=zh_CN:zh:en_US:en
LC_CTYPE=“zh_CN.UTF-8”
LC_NUMERIC=“zh_CN.UTF-8”
LC_TIME=“zh_CN.UTF-8”
LC_COLLATE=“zh_CN.UTF-8”
LC_MONETARY=“zh_CN.UTF-8”
LC_MESSAGES=“zh_CN.UTF-8”
LC_PAPER=“zh_CN.UTF-8”
LC_NAME=“zh_CN.UTF-8”
LC_ADDRESS=“zh_CN.UTF-8”
LC_TELEPHONE=“zh_CN.UTF-8”
LC_MEASUREMENT=“zh_CN.UTF-8”
LC_IDENTIFICATION=“zh_CN.UTF-8”
LC_ALL=
1$ localectl list-locales
C.UTF-8
en_US.utf8
zh_CN.utf8
问题解决办法
要想达到应用程序中正常显示中文字符的目的,要下面的三个变量应该如下,
1LANG=zh_CN.UTF-8
2LANGUAGE=zh_CN:zh:en_US:en
3LC_ALL=LC_ALL=zh_CN.UTF-8
但问题在于“LC_ALL to default locale: No such file or directory”和“LC_ALL: cannot change locale(zh_CN.UTF-8)”,因此重新安装中文语言包。
执行下面命令
1sudo apt-get-y install language-pack-zh-hans
或
1sudo apt-get-y install language-pack-zh-hans language-pack-zh-hans-base
如果想支持繁体字,则执行
1sudo apt-get-y install language-pack-zh-hant
或
1sudo apt-get-y install language-pack-zh-hant language-pack-zh-hant-base
再执行locale命令设置当前locale环境
1locale
相关的文件和参考
相关手册:man locale(1), locale(5), locale(7)
相关文件:/usr/share/i18n/SUPPORTED
相关命令:
locale--all-locales列出当前系统中所有支持的locale
localectl list-locales列出当前系统中所有可用的locale
localectl set-locales LOCALE.。。修改当前系统中的locale,与locale功能相同,与export上文提到的三个变量相同
对于CentOS,可以直接编辑/etc/sysconfig/i18n文件,将LANG=“en_US.UTF-8”设置成LANG=“zh_CN.UTF-8”,除此之外,CentOS下locale命令的显示结果如下:
1# locale
LANG=en_US.UTF-8
LC_CTYPE=“en_US.UTF-8”
LC_NUMERIC=“en_US.UTF-8”
LC_TIME=“en_US.UTF-8”
LC_COLLATE=“en_US.UTF-8”
LC_MONETARY=“en_US.UTF-8”
LC_MESSAGES=“en_US.UTF-8”
LC_PAPER=“en_US.UTF-8”
LC_NAME=“en_US.UTF-8”
LC_ADDRESS=“en_US.UTF-8”
LC_TELEPHONE=“en_US.UTF-8”
LC_MEASUREMENT=“en_US.UTF-8”
LC_IDENTIFICATION=“en_US.UTF-8”
LC_ALL=
其中,LC_ALL=为空,但并不是表示这里不对,而是LC_ALL=实际上等于LC_COLLATE、LC_CTYPE、LC_MONETARY、LC_MESSAGES、LC_NUMERIC、LC_TIME,参见locale(7)。
CentOS7区域设置的方法
CentOS7区域设置
区域设置的配置文件在/etc/locale.conf,通过localectl命令进行设置;
systemd服务在启动的时候读取区域配置文件,完成系统的设置。
命令的几个常用方法如下:
1查看当前配置
[root@localhost~]# localectl status
System Locale: LANG=en_US.UTF-8
VC Keymap: us
X11 Layout: us
2查看可用的区域语言
[root@localhost~]# localectl list-locales|grep CN
bo_CN
bo_CN.utf8
ug_CN
ug_CN.utf8
zh_CN
zh_CN.gb18030
zh_CN.gb2312
zh_CN.gbk
zh_CN.utf8
3设置区域语音
localectl set-locale LANG=zh_CN.utf8
4键盘布局查看和配置使用以下命令,就不详细介绍了。
localectl list-keymaps
localectl set-keymap
localectl set-x11-keymap
5 localectl还可以配置远程系统的区域配置,加-H参数奇可以了。
-H--host=[USER@]HOST Operate on remote host
6 localectl命令的几个关键字:
关键字
LANG默认的系统语音
LC_COLLATE更改字母表
LC_CTYPE改变字符功能处理
LC_NUMERIC数字格式
LC_TIME时间格式,24小时格式,或者12小时格式。
LC_MESSAGES配置标准报错信息使用那种语言。