Ubuntu: the sudo ./install does not work for Matlab

So i have treid both ways. Using the sudo ./install and going to the root with sudo su. Both dont open the installer for Matlab.

If i just type ./install its runs. But the problem is i cant install it in the usr/bin directory. If i install it in the ~/user/ directory it does not open.

Any ideas :/

[Stephen Sangwine]

I have found the same thing with the R2021b installer on Ubuntu 20.04. Running it using sudo ./install does not produce the installer window. Running as a normal user produces the window, but of course it can't create the installation directory because it doesn't have root privilege. I don't recall having this problem with earlier releases.

[DitmarH]

Yep that was the prolbem. Probably the R2021b is not ready. I just installed the R2020b and everything is fine. Thanks for the help :)

[Filipe Santos]

What I did was the following, I open the folder on terminal and then use

1 - sudo su

2 - ./install

Btw I am on manjaro not on ubuntu, but probably will work.

Answer 1

[Zdenek Hurak]

I (partly) confirm the same problems to install R2021b as a root. On Linux (latest Kubuntu 21.04). Exactly following the same installation procedure used successfully dozens of times with previous versions.

After unzipping (unzip matlab_R2021b_glnxa64.zip), typing sudo ./install in a terminal does nothing (prints nothing but the process hangs and needs to be killed after a few minutes of waiting).

Typing just ./install and choosing some user directory gets the installation running and the installed Matlab can be launched without problems.

[DitmarH]

It was a problem with the R2021b the sudo ./install comand does not work. The problem was after installing it in another directory (using just the ./install ) matlab would not open. It would start. Show the winodw you get when you lunch it (the poster thingy :P) and then just close. Nothing happened

I just installed one of the previous versions. R2020b. I used sudo ./install and could isntall it in the /usr directory. Now everything works fine and matlab luncehs with no problems. I can now also use the icon on my lunch bar or whatever thats called xD

Thanks for the help. Have a good day mate :)

[Wayde Martens]

Is there a solution to this yet?

[Juan Luis Cano Rodríguez]

This answer, although marked as "accepted", is hardly a "solution".

Answer 2

[Wei Wang]

1. (run the command : xhost +SI:localuser:root)
2. sudo ./install

works for me for Ubuntu 22.04 LTS and Matlab R2022a

As answered here:

https://ww2.mathworks.cn/matlabcentral/answers/1459474-sudo-install-not-opening-installer-matlab-2021b

https://www.mathworks.com/matlabcentral/answers/1459909-installer-hang-when-installing-matlab-r2021b-as-root-on-ubuntu-20-04#comment_1759029

[Nicholas Aksamit]

worked for me!

Answer 3

[Jason Brooks]

You have to transfer your Xauthority session and display to a different user (root) then run ./install or sudo ./install.

For example on a Linux system:

xauth list $DISPLAY

should return something like:

host.domain.com/unix:10 MIT-MAGIC-COOKIE-1 dacbl57583ec54a1d7115a172143926aa

then run the command:

echo $DISPLAY

which should return something like:

localhost:10.0

then switch to a root shell:

sudo su (sudo su -, or sudo -i, or whatever your preference to get a root shell)

and based on YOUR results from the above commands:

xauth add host.domain.com/unix:10 MIT-MAGIC-COOKIE-1 dacbl57583ec54a1d7115a172143926aa

(this will be whatever was returned from the above xauth list $DISPLAY command)

export DISPLAY=localhost:10.0 (this will be whatever was returned from echo $DISPLAY)

Then when you run .install as root it will install wherever you want it to install with root permissions.

https://www.thegeekdiary.com/how-to-set-x11-forwarding-export-remote-display-for-users-who-switch-accounts-using-sudo/

[Niccolò Marcucci]

This actually solves the problem, thank you! A couple of notes for the posterity:

• there is a typo in the line " echo $DSIPLAY "
• when exporting the display, use the result of the previously run command " echo $DISPLAY ", instead of " localhost:10.0 "
• it should be noted that you shall run the install script from the root shell, because " sudo ./install " will not work.

[Jason Brooks]

Thanks. I was both in a hurry and assumed too much. I think I've fixed it up.