If your goal is simply to simulate Verilog/VHDL on any Linux machine (without the QuestaSim brand), here are truly portable options you can download and run from USB today.
export QSYS_ALWAYS_CREATE_WORK=1
echo "QuestaSim environment ready. Type 'vsim' to start." download questasim for linux portable
Make it executable: chmod +x setup_questa.sh If your goal is simply to simulate Verilog/VHDL
Even if you extract a portable folder, Linux libraries are not bundled: Make it executable: chmod +x setup_questa
# Missing libraries typical on modern Ubuntu 22.04 / RHEL 9:
libncurses.so.5 → needs compat package
libstdc++.so.6 (old version) → conflicts with system
libtiff.so.5 vs libtiff.so.6
libXft.so.2 (often absent on Wayland-only installs)
You’ll end up spending more time fixing LD_LIBRARY_PATH than installing the real version.