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Ubuntu 20.04 LTS ​

最近买了一台零刻SER5-MAX，在上面装了Ubuntu 20.04 LTS用来当本地服务器用，下面记录一下安装和使用过程中遇到问题和解决方案。

首次安装时重置root用户密码 ​

安装Ubuntu后第一次进入系统只有自己的账户，需要重置root账户密码。

bash
# 获取root用户权限
sudo su
# 获取root用户权限
sudo su
bash
# 重置密码
passwd
# 重置密码
passwd

Ubuntu自动休眠导致服务器不可用 ​

Ubuntu默认会在一段时间无操作后进入休眠状态，通过如下命令关闭

bash
# 查看当前休眠状态
systemctl status sleep.target
# 查看当前休眠状态
systemctl status sleep.target
bash
# 关闭休眠
systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
# 关闭休眠
systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
bash
# 确认休眠状态已更改
systemctl status sleep.target
# 确认休眠状态已更改
systemctl status sleep.target

命令行修改时区 ​

安装好Ubuntu-Server之后默认是UTC时区，需修改为GMT+8时区。

bash
timedatectl
timedatectl
bash
               Local time: Fri 2023-08-25 17:26:21 UTC
           Universal time: Fri 2023-08-25 17:26:21 UTC
                 RTC time: Fri 2023-08-25 17:26:21    
                Time zone: Etc/UTC (UTC, +0000)       
System clock synchronized: yes                        
              NTP service: active                     
          RTC in local TZ: no
               Local time: Fri 2023-08-25 17:26:21 UTC
           Universal time: Fri 2023-08-25 17:26:21 UTC
                 RTC time: Fri 2023-08-25 17:26:21    
                Time zone: Etc/UTC (UTC, +0000)       
System clock synchronized: yes                        
              NTP service: active                     
          RTC in local TZ: no
bash
timedatectl list-timezones
timedatectl list-timezones
bash
Africa/Abidjan
Africa/Accra
Africa/Addis_Ababa
Africa/Algiers
Africa/Asmara
Africa/Asmera
Africa/Bamako
Africa/Bangui
Africa/Banjul
Africa/Bissau
Africa/Blantyre
Africa/Brazzaville
......
Africa/Abidjan
Africa/Accra
Africa/Addis_Ababa
Africa/Algiers
Africa/Asmara
Africa/Asmera
Africa/Bamako
Africa/Bangui
Africa/Banjul
Africa/Bissau
Africa/Blantyre
Africa/Brazzaville
......
bash
timedatectl set-timezone Asia/Shanghai
timedatectl set-timezone Asia/Shanghai
bash
root@ser5-max:/home/skyfire33# timedatectl
               Local time: Sat 2023-08-26 01:27:26 CST
           Universal time: Fri 2023-08-25 17:27:26 UTC
                 RTC time: Fri 2023-08-25 17:27:26    
                Time zone: Asia/Shanghai (CST, +0800) 
System clock synchronized: yes                        
              NTP service: active                     
          RTC in local TZ: no
root@ser5-max:/home/skyfire33# timedatectl
               Local time: Sat 2023-08-26 01:27:26 CST
           Universal time: Fri 2023-08-25 17:27:26 UTC
                 RTC time: Fri 2023-08-25 17:27:26    
                Time zone: Asia/Shanghai (CST, +0800) 
System clock synchronized: yes                        
              NTP service: active                     
          RTC in local TZ: no