I'm trying to run the MOPEX GUI on my Linux box but it fails with an error message about initialization of the VM
Posted by IRSA HelpDesk on 11 March 2013 01:52 PM
Some Linux users have seen the following error message when trying to start MOPEX:

Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.

The MOPEX GUI startup settings are too aggressive for your machine. You need to edit the following line in the executable file <installation_dir>/mopex:

Replace the following line:
set MEM = (-Xms48m -Xmx2048m)

with this:
set MEM = (-Xms48m -Xmx1024m)

then run the script to start MOPEX. MOPEX will prompt you to auto-update. Select "Quit and Install" to update to the latest version. After MOPEX is updated you must repeat the above steps as the executable will have been overwritten. You should then be able to start the MOPEX GUI without a problem.
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