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Centos8 stream如何升级为Centos9 stream
1.输入该命令按回车键:`dnf -y install epel-release` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10223888565f2.jpeg) 2.输入该命令按回车键:`dnf -y update` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102307ee37425.jpeg) 3.输入该命令按回车键:`dnf -y install rpmconf yum-utils` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102309c709d4a.jpeg) 4.输入该命令按回车键:`rpmconf -a`,若出现提示输入Y按回车键 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102311522e4ed.jpeg) 5.输入该命令按回车键:`dnf -y remove rpmconf yum-utils epel-release` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023138b51c30.jpeg) 6.输入该命令按回车键: rpm -e --nodeps `rpm -qa|grep centos` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023169c8fe7d.jpeg) 7.输入该命令按回车键: rpm -ivh --nodeps --force https://mirrors.aliyun.com/centos-stream/9-stream/BaseOS/x86_64/os/Packages/centos-stream-release-9.0-12.el9.noarch.rpm, ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023184cd3cc0.jpeg) 8.输入该命令按回车键: rpm -ivh --nodeps --force https://mirrors.aliyun.com/centos-stream/9-stream/BaseOS/x86_64/os/Packages/centos-gpg-keys-9.0-12.el9.noarch.rpm ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023212c4c0c4.jpeg) 9.输入该命令按回车键: rpm -ivh --nodeps --force https://mirrors.aliyun.com/centos-stream/9-stream/BaseOS/x86_64/os/Packages/centos-stream-repos-9.0-12.el9.noarch.rpm, ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023236c5ff99.jpeg) 10.输入该命令按回车键:`dnf clean all` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023252582dd1.jpeg) 11.输入该命令按回车键: dnf -y --releasever=9 --allowerasing --setopt=deltarpm=false distro-sync ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102328995573e.jpeg) 12.输入该命令按回车键:`rpm --rebuilddb` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10233206b2f7f.jpeg) 13.输入该命令按回车键: rpm -e --nodeps `rpm -qa|grep -i kernel` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10233020d1e2d.jpeg) 14.输入该命令按回车键:`dnf -y install kernel` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102334f4e29f1.jpeg) 15.输入该命令按回车键:`dnf -y install kernel-core` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023361d4779e.jpeg) 16.输入该命令按回车键:`dnf -y install shim` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10233968ad084.jpeg) 17.输入该命令按回车键:`dnf group install minimal-environment -y` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102341f890977.jpeg) 18.输入该命令按回车键:`dnf -y install epel-release` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023434171040.jpeg) 19.输入该命令按回车键:`dnf -y install rpmconf yum-utils` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023458eb0a6c.jpeg) 20.输入该命令按回车键:`dnf -y update` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023481739d42.jpeg) 21.输入该命令按回车键:`rpmconf -a`,若出现提示输入Y按回车键 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102350f4bb4d2.jpeg) 22.输入该命令按回车键:`grub2-mkconfig -o /boot/grub2/grub.cfg` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023527c6c848.jpeg) 23.输入该命令按回车键:`grub2-install /dev/sda` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102355898db12.jpeg) 24.输入该命令按回车键:`echo "PermitRootLogin yes" >> /etc/ssh/sshd_config` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1023584eedd2b.jpeg) 25.输入该命令按回车键重启后再操作连接:`reboot` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10240116698c3.jpeg) 26.输入该命令按回车键查看版本:`cat /etc/redhat-release` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/102403ce49979.jpeg)
解决Windows系统无法拖放文件的问题
1.使用快捷键`Win+R`打开运行窗口,然后输入`gpedit.msc`,然后回车。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10105842b317e.jpeg) 2.依次点击“用户配置”-“管理模块”-“Windows组件”-“任务计划程序” ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1011003844cf0.jpeg) 3.点击后在右侧找到“禁止拖放”,然后双击打开,若发现选项当前状态是“已启动”,那么便把选项修改为“已禁用”,并依次点击“应用”-“确定”按钮即可。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10110631dfd44.jpeg) ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1011089486be2.jpeg)
Windows10如何解决功能添加.Net3.5提示错误代码0x80070422
![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/100348d915de4.jpeg) 1.打开“运行”,输入`services.msc`,点击“确定” ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/100350a6463a1.jpeg) 2.双击“Windows Update”服务 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10035293e0db7.jpeg) 3.将启动类型设置为“自动”,然后点击“应用” ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/100357b0e6b69.jpeg) 4.点击“启动” ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/100359808879a.jpeg) 5.操作启用功能正常 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/1004038e0b10f.jpeg)
Windows10如何解决Windows Update服务启动类型修改时提示拒绝访问
![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10000841d55f3.jpeg) 1.打开“运行”,输入`regedit`,点击“确定” ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/100011c3a1d09.jpeg) 2.在HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wuauserv路径下右键点击“wuauserv”选择“权限” ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10001454cb458.jpeg) 3.勾选“完全控制”的“允许”,点击“确定”即可 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/10001630a41de.jpeg)
Centos7.6如何解决执行py文件提示No module named requests
![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/095359f29359f.jpeg) 1.输入该命令按回车键:`yum install python-requests -y` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/095401fbc9c59.jpeg) 2.测试执行文件 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/095403878082a.jpeg)
Centos7.6如何安装进程管理工具supervisor
1.输入该命令按回车键:`yum -y install python-pip` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/094813ac1fbb3.jpeg) 2.输入该命令按回车键:`pip install supervisor` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/094815b44c2ae.jpeg) 3.输入该命令按回车键:`yum install -y python-setuptools` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/094817b61a760.jpeg) 4.输入该命令按回车键:`easy_install supervisor` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/094819c71b865.jpeg) 5.输入该命令按回车键:`echo_supervisord_conf > /etc/supervisord.conf` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/094821f9c7f8b.jpeg)
Centos7.6如何配置使用supervisor设置进程守护
1.输入该命令按回车键:`vi /etc/supervisord.conf` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/093612464acb2.jpeg) 2.按“i”进入插入模式,找到`inet_http_server`,将注释去掉 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/093618017ddc4.jpeg) ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/093620fb3cc85.jpeg) 3.找到`include`,将注释去掉,设置ini文件的保存目录,修改完成后按`ESC`键输入`wq`按回车键保存退出vi编辑 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/093623791ee41.jpeg) ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/0936254b910e5.jpeg) 4.输入该命令按回车键:`mkdir /etc/supervisor` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/09363529df383.jpeg) 5.输入该命令按回车键:`mkdir /etc/supervisor/config.d` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/0936476d8e67c.jpeg) 6.输入该命令按回车键:`cd /etc/supervisor/config.d` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/093652e7cda26.jpeg) 7.输入该命令按回车键:`vi test.ini` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/0936569e6e93f.jpeg) 8.按`i`进入插入模式,参考以下方式设置,command为指定程序路径,修改完成后按`ESC`键输入`wq`按回车键保存退出vi编辑 [program:test] command=/root/apache-tomcat-9.0.80/bin/startup.sh user=root autostart=true autorestart=true stderr_logfile=/root/test.err.log stdout_logfile=/root/test.out.log ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/093658213f529.jpeg) 9.输入该命令按回车键:`supervisord -c /etc/supervisord.conf` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-19/093702670827a.jpeg)
解决Windows系统无法拖放文件的问题
1.使用快捷键`Win+R`打开运行窗口,然后输入`gpedit.msc`,然后回车。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-08/104525d785c51.jpeg) 2.依次点击“用户配置”-“管理模块”-“Windows组件”-“任务计划程序” ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-08/10452683381ea.jpeg) 3.点击后在右侧找到“禁止拖放”,然后双击打开,若发现选项当前状态是“已启动”,那么便把选项修改为“已禁用”,并依次点击“应用”-“确定”按钮即可。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-08/104529b69eab0.jpeg) ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-08/10453283e810e.jpeg)
Centos7.6如何安装系统启动修复工具mkbootdisk
Centos7.6如何安装系统启动修复工具mkbootdisk呢?本文给出详细说明。 1.更新yum源:`yum updte` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-08/1042521802d49.jpeg) 2.安装mkbootdisk:`yum install mkbootdisk` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-08/1042556dcc7e9.jpeg)
Centos7.6如何用usernetctl命令操控网卡状态
Centos7.6如何用usernetctl命令操控网卡状态呢?本文给出详细说明。 1.关闭指定网卡:`usernetctl 网卡名 down` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-08/10400130c32fb.jpeg) 2.开启指定网卡:`usernetctl 网卡名 up` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-09-08/104005a0568d0.jpeg)

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