Fixing lmgrd Startup Issues on Linux

License server architecture for Abaqus using FlexNet with lmgrd and vendor daemon components.

Downloading the Abaqus FlexNet Installation Files for Linux (Part_SIMULIA_FlexNet – SIMULIA Abaqus 20xx FP.CFA.2xxx – Linux64) and installing them often works as expected. However, when trying to start the FlexNet License daemon lmgrd on the Linux server, the process might abort and return the following error: 

lmgrd: No such file or directory 

Although the FlexNet installer runs smoothly, this error typically points to a missing dependency required by the lmgrd binary to initialize properly. 

Diagnosing the Issue 

A common cause of this startup failure is the absence of Linux Standard Base (LSB) components, which are required for some FlexNet binaries to execute. You can verify whether the required shared objects are present by using the following command: 

$ ldd lmgrd linux-vdso.so.1 => (0x00007fffeafef000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f5ba86fb000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f5ba83f2000) libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f5ba81dc000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f5ba7e12000) libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f5ba7c0e000) /lib64/ld-lsb-x86-64.so.3 => /lib64/ld-linux-x86-64.so.2 (0x00007f5ba8918000) 

If the line 

/lib64/ld-lsb-x86-64.so.3 

No such file or directory appears, then lmgrd cannot be launched because it relies on that shared object to resolve its runtime environment. 

You can also directly test if the file is missing with: 

$ ls -l /lib64/ld-lsb-x86-64.so.3 ls: cannot access ‘/lib64/ld-lsb-x86-64.so.3’

No such file or directory 

Fixing the Problem: Installing LSB 

The solution is to install the LSB compatibility layer for your Linux distribution. The exact package depends on your system: 

For Debian/Ubuntu-based systems: 

sudo apt-get install lsb 

For Red Hat-based systems: 

sudo yum install redhat-lsb-core 

After installation, check again: 

$ ls -l /lib64/ld-lsb-x86-64.so.3 lrwxrwxrwx 1 root root 20 Aug 17 12:21 /lib64/ld-lsb-x86-64.so.3 -> ld-linux-x86-64.so.2 

Once this dependency is resolved, lmgrd should launch correctly and you can continue with the license server setup. 

Final Steps for License Server Configuration 

After resolving the missing LSB issue: 

• Add your .lic license file to the appropriate location 

• Configure environment variables (like LM_LICENSE_FILE) 

• Use the FlexNet License Administrator to define the service and launch it 

Need Help with Your Abaqus License Server?

This issue typically only appears once, during initial installation or after a Linux OS update. Still, it’s a good practice to verify LSB availability when deploying FlexNet on new environments.  If you're setting up your license server or facing issues after installation, we’re here to help. Reach out using the contact form or email us at sales@4realsim.com for tailored support in the Benelux, UK, or US.