Why am I unable to start the Network License Manager on Linux?

Why do I receive one of the following errors when I try to launch the Network License Manager on Linux?

• ./lmgrd: Command not found. 

• /lib64/ld-lsb-x86-64.so.3: bad ELF interpreter: No such file or directory

• MLM: can't initialize: Invalid license file syntax. (-2,40027) EXITING DUE TO SIGNAL 52 Exit reason 20

• eval: 1: /var/tmp/lm_TMW.ld: not found 
      Waiting 300 secs for MATLAB vendor daemon to come up . . . 
          Type your interrupt character (usually CTRL-C) to quit. 
      Time = 3 secs : still waiting . . .

• /usr/local/MATLAB/R2023a/etc/glnxa64/lmhostid: not found
      Error: Your hostname matches the hostname on a SERVER line in
             your license file but the lmhostid in that line does not.
             Your local lmhostid(s) are:
             Your hostname is:  licserver1.support.mathworks.com           
             The SERVER line in question is:
             -----------------------------------------------
             SERVER licserver1.support.mathworks.com 001122DDEE99 27000
             -----------------------------------------------
  Please stop, fix the problem, and try again . . .

Answer 1

[MathWorks Support Team]

One or more of these errors will occur if you try to run the License Manager on a system which is missing the Linux Standard Base (LSB) library, which the License Manager is dependent upon. We recommend installing LSB. You may do so with one of the following commands, depending on the Linux distribution and package manager you are using:

RedHat/CentOS 8.x or older

sudo yum install lsb

or

sudo dnf install lsb

 

RedHat/CentOS 9.x or older

LSB still needs to be installed, but is not a package in any of the default repositories.

 

Ubuntu/Debian

sudo apt install lsb-core

or

sudo apt-get install lsb-core

or

sudo apt install lsb-release

 

Otherwise, the workaround is to have the License Manager use a standard library by adding a symbolic link to your Operating System. This should only be done if no other workaround can be found, as it could cause other issues with Linux.

To add the the symbolic link, navigate to the /lib64 directory with the CD command and run the following:

ln -s ld-linux-x86-64.so.2 /lib64/ld-lsb-x86-64.so.3

Once you have added the symbolic link, verify it by running the following:

ls -l /lib64 | grep lsb

The output should be:

lrwxrwxrwx  1 root root   20 Jan 23 18:58 ld-lsb-x86-64.so.3 -> ld-linux-x86-64.so.2*

With the symbolic link in place, attempt to start the Network License Manager.