가)
Could
not execute auto check for display colors using command /usr/bin/xdpyinfo.
Check if the DISPLAY variable is set.
Failed <<<<
Some requirement checks failed. You must fulfill these requirements before
오류 발생 시 아래 명령어를 입력 해준다.
|
Root 계정에서 아래 명령어
실행
#xhost +SI:localuser:oracle
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Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified
While installing Oracle database I was getting this error. I searched various blogs and forums and found out many solutions but lastly I got one solution which worked for me.But well I will post all the possible ways which you can try (as per my knowledge) to overcome this issue.Error:Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified
Specify the display protocol by logging into the user account you are getting the error
Solution 1:
$ export DISPLAY=localhost:0.0
$ xhost +
Solution 2:Syntax:
$ export DISPLAY=(machine_name):0.0
For example:
$ export DISPLAY=10.10.20.42:0.0
$ xhost +
Solution 3 (which worked for me)Login to the user account where you are getting the above error$ xauth $DISPLAY
xauth: creating new authority file /home/oracle/.Xauthority
xauth: (argv):1: unknown command ":0.0"
The best way to check whether your Xlib display protocol is working or not is by using xclock commandAfter running this command you should see a small clock on your screen.
Solution 4In case the above solution does not works
Login as root
# xauth $DISPLAY
xauth: creating new authority file /home/root/.Xauthority
# xauth list $DISPLAY
test.example.com/unix:0 MIT-MAGIC-COOKIE-1 f601e6a29ea688786765434c5c6325071
Now copy the above output and su to the user you are facing issue
# su - oracle
$ xauth add test.example.com/unix:0 MIT-MAGIC-COOKIE-1 f601e6a29ea688786765434c5c6325071
xauth: creating new authority file /home/oracle/.Xauthority
Now test if your DISPLAY is workingYou should get a small clock output on the screen
