![]() ("headless:" + headless) įor (UIManager.LookAndFeelInfo lafInfo : UIManager. ("System.getenv(\"DISPLAY\"):" + System.getenv("DISPLAY")) īoolean headless = ("Linux".equals(osName) || ("System.getProperty(\"os.name\"):" + System.getProperty("os.name")) 1 Answer Sorted by: 5 Sometimes, even if youve changed the host name via raspi-config, the settings dont stick. String display = System.getenv("DISPLAY") Ive given my user sudo by adding it to the sudo group, and Ive rebooted multiple times since doing it. Everytime I use it, I get the message 'sudo: unable to resolve host pulsar'. Once hostname is changed, if you get 'unable to resolve host : Name or service not known' then follow the step 4 for the fix. String osName = System.getProperty("os.name") I dont know what happened Cant seem to edit /etc/hosts in su or sudo vim or sudo nano (Im only trying to edit this file because I think its the cause of the issue below) always get either sudo: unable to resolve host : Resource temporarily unavailable ive replaced my actual hos. I just installed stretch 5 days ago, and everything is working fine except for sudo. If you are running Ubuntu on Windows WSL (Windows Subsystem for Linux) and wondering how to change hostname permanently then follow all steps mentioned below.Return (OS.contains("nix") || OS.contains("nux") || OS.contains("aix")) Return (OS.contains("mac") || OS.contains("darwin")) Here the code: private static final String OS = System.getProperty("os.name").toLowerCase() resolve covscan issue found in fix for 1570480 - automake sometimes fails to. Java HotSpot(TM) 64-Bit Server VM (build 25.251-b08, mixed ~]$Ĭhecking DISPLAY variable ~]$ printenv | grep ~]$ sudo printenv | grep ~]$ sudo -Hiu root env | grep ~]$ sudo -Hiu joseluisbz env | grep ~]$ configure -buildx8664-redhat-linux-gnu -hostx8664-redhat-linux-gnu. ![]() Java(TM) SE Runtime Environment (build 1.8.0_251-b08) ![]()
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