ubuntu安装小记

一 下载镜像 装UItraISO 用UItraISO将镜像装到u盘 插上U盘重启电脑F12安装
https://blog.csdn.net/qq_42257666/article/details/123709678?spm=1001.2014.3001.5506
二 装好后 会设置一个系统账号 ，手动设置root账号。ubuntu18以后就默认登录的是系统用户
https://blog.csdn.net/sanqima/article/details/116205835
https://blog.csdn.net/qq_63511424/article/details/123758644
三 需要安装ssh服务 并启动ssh服务
https://qingmu.blog.csdn.net/article/details/107785225?spm=1001.2101.3001.6661.1&utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-107785225-blog-116004247.pc_relevant_multi_platform_whitelistv4&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-107785225-blog-116004247.pc_relevant_multi_platform_whitelistv4&utm_relevant_index=1

还要修改配置文件 才可以外部ssh连接
常见错误：

Remote rejected opening a shell channel: Error: Not connected
ubuntu ssh  All configured authentication methods failed

vim /etc/ssh/sshd_config

#PasswordAuthentication ，将他改为yes （一般这行是注释掉，所以去掉注释就行）
PasswordAuthentication yes
#PermitRootLogin prohibit-password
PermitRootLogin yes

https://blog.csdn.net/Dreamhai/article/details/125786887?ops_request_misc=&request_id=&biz_id=102&utm_term=ubuntu%20root%E7%94%A8%E6%88%B7%E7%99%BB%E5%BD%95&utm_medium=distribute.pc_search_result.none-task-blog-2_allsobaiduweb~default-0-125786887.nonecase&spm=1018.2226.3001.4187

https://qingmu.blog.csdn.net/article/details/107785225?spm=1001.2101.3001.6661.1&utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-107785225-blog-116004247.pc_relevant_multi_platform_whitelistv4&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-107785225-blog-116004247.pc_relevant_multi_platform_whitelistv4&utm_relevant_index=1

https://blog.csdn.net/crayon0/article/details/122272001?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522167870213316782427425996%2522%252C%2522scm%2522%253A%252220140713.130102334…%2522%257D&request_id=167870213316782427425996&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2_allsobaiduend~default-1-122272001-null-null.142^v73control,201^v4add_ask,239^v2insert_chatgpt&utm_term=permitrootlogin%20prohibit-passw&spm=1018.2226.3001.4187
四 关闭自动休眠
https://blog.csdn.net/weixin_44120025/article/details/123184263

https://blog.csdn.net/wzl1217333452/article/details/107502216?spm=1001.2101.3001.6650.1&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-107502216-blog-123184263.pc_relevant_recovery_v2&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-107502216-blog-123184263.pc_relevant_recovery_v2&utm_relevant_index=2

https://huaweicloud.csdn.net/635668fdd3efff3090b5e24c.html?spm=1001.2101.3001.6650.1&utm_medium=distribute.pc_relevant.none-task-blog-2_defaultCTRLIST_{activity-1-121074451-blog-107502216.pc_relevant_3mothn_strategy_recovery&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2}default_CTRLISTactivity-1-121074451-blog-107502216.pc_relevant_3mothn_strategy_recovery&utm_relevant_index=2