IsoNet2 GUI (AppImage) fails with “Illegal instruction” on HPC

[ulloaa]

The IsoNet2 CLI (isonet.py) works as expected, but the GUI (AppImage) fails to launch and consistently exits with:

Illegal instruction

This occurs both when running the AppImage directly and when extracting it and launching via AppRun or the underlying binary. Using --no-sandbox avoids sandbox errors but does not resolve the crash.

Writable paths for $HOME, XDG_*, and TMPDIR were ensured, and required system libraries were installed.

Expected behavior:
The GUI should launch on a standard Linux environment.

Questions:

Are there specific CPU instruction requirements for the AppImage?
Is the GUI expected to work in containerized environments?
Are there alternative builds or recommended installation methods for better compatibility?

At present, only the CLI is usable.

[procyontao]

Hi,

I put the GUI code this repo under IsoApp, not in a separate repository previously. Please see here "https://github.com/IsoNet-cryoET/IsoNet2/tree/cfe5792413e7547c79696628d4f799c0b520db56"

To build it yourself from this repo:

cd IsoNet2/IsoApp
npm ci
npm run build:linux
That will generate the Linux packages in dist, including:
isoapp-1.0.0.AppImage
isoapp_1.0.0_amd64.snap
isoapp_1.0.0_amd64.deb

The app dependencies in IsoApp/package.json are mostly ordinary JS/UI libraries, so a Illegal instruction at startup is much more likely to come from Electron/Chromium compatibility or permission.