Ubuntu 20.04 在登录界面(欢迎界面)长时间无操作会自动休眠,这对于准备用于做服务器的系统极其不友好,本文记录禁用休眠方法。
systemd
的自动休眠功能,检查休眠功能的状态:$ systemctl status sleep.target
● sleep.target - Sleep
Loaded: loaded (/lib/systemd/system/sleep.target; static; vendor preset: enabled)
Active: inactive (dead)
Docs: man:systemd.special(7)
Feb 24 13:18:08 xps systemd[1]: Reached target Sleep.
Feb 26 13:29:31 xps systemd[1]: Stopped target Sleep.
Feb 26 13:29:57 xps systemd[1]: Reached target Sleep.
Feb 26 13:30:19 xps systemd[1]: Stopped target Sleep.
sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
Created symlink /etc/systemd/system/sleep.target → /dev/null.
Created symlink /etc/systemd/system/suspend.target → /dev/null.
Created symlink /etc/systemd/system/hibernate.target → /dev/null.
Created symlink /etc/systemd/system/hybrid-sleep.target → /dev/null.
$ systemctl status sleep.target
● sleep.target
Loaded: masked (Reason: Unit sleep.target is masked.)
Active: inactive (dead)
自动休眠功能已经被关闭,不会出现自动休眠导致远程控制无法访问的情况了。